CN103197485A - Method and device for generating light pulse through graphene oxide electron transfer driven by electric field - Google Patents
Method and device for generating light pulse through graphene oxide electron transfer driven by electric field Download PDFInfo
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Abstract
The invention relates to a light pulse technology, in particular to a method and a device for generating a light pulse through graphene oxide electron transfer driven by an electric field, and solves the technical problem that a conventional light pulse generating device cannot generate the light pulse on the rising edge and the falling edge where the electric field controls a square signal. The method for generating the light pulse through the graphene oxide electron transfer driven by the electric field comprises the steps as follows: (a), voltage which is modulated by the square signal is loaded at two ends of a prepared oxidized grapheme sample, and the highest electric field intensity of the voltage ranges from 150 V/mm to 400 V/mm; (b), continuous laser is adopted to focus on the surface of the oxidized grapheme sample; and (c), a fluorescence pulse which has the intensity increasing suddenly along the falling edge of an external modulating square wave or along the rising edge and the falling edge simultaneously is obtained. According to the method and the device for generating the light pulse through the graphene oxide electron transfer driven by the electric field, a light pulse signal which is enhanced suddenly along the falling edge and the rising edge of the external modulating signal is obtained, and the method and the device can be widely applied to the fields of time resolution light spectrum, three-dimensional optical imaging, optical information processing and the like.
Description
Technical field
The present invention relates to the light pulse technology, be specially a kind of electric field driven graphene oxide electronics and shift method and the device that produces light pulse.
Background technology
Light pulse has in medical science, communication, military affairs and spectral analysis very widely uses.Usually the method that adopts external modulation to produce light pulse roughly has following several: the intensity modulated of electro-optical devices such as mechanical chopping the light, acousto-optic modulator and phase-modulator.The characteristics that these methods produce light pulses all are the restrictions that light pulse directly is subjected to the external modulation signal, can only present the pulse waveform consistent with modulation signal, can't be implemented in the process that the external modulation signal rises or descend and produce light pulse.This can't satisfy the technical requirement that field needs such as time resolved spectroscopy, three-dimensional optical imaging and optical information processing externally produce light pulse in the process of rising or falling of square wave electric field modulation signal.
Summary of the invention
The present invention can't be implemented in the rising edge of electric field controls signal and the technical matters of negative edge generation light pulse for solving present optical pulse generator, provides a kind of electric field driven graphene oxide electronics to shift method and the device that produces light pulse.
Electric field driven graphene oxide electronics of the present invention shifts the method that produces light pulse and realizes by the following technical solutions: a kind of electric field driven graphene oxide electronics shifts the method that produces light pulse, may further comprise the steps: (a) load the voltage through the square-wave signal modulation at the two ends of the graphene oxide sample for preparing; The maximum electric field strength range of described voltage is 150V/mm ~ 400V/mm; (b) adopt continuous laser to focus on the graphene oxide sample surfaces, graphene oxide sample emitting fluorescence under the exciting of laser focusing; Collect the fluorescence of sample diverse location emission, and convert the light intensity signal of fluorescence to corresponding electric signal, determine the relation of fluorescence with the square-wave voltage that applies of the emission of each position of graphene oxide sample, can produce on the record sample with frequency response should or the positional information that responds of frequency multiplication; The described fluorescent pulse intensity of stimulated emission on the sample that should refer to frequency response is with the rinforzando phenomenon of the negative edge of square-wave voltage; The fluorescent pulse intensity that the response of described frequency multiplication refers to stimulated emission on the sample is with the equal rinforzando phenomenon of the negative edge of square-wave voltage and rising edge; (c) adopt continuous laser to excite these positions respectively, just obtained with the negative edge enhancing suddenly of external modulation square wave or with rising edge and the rinforzando fluorescent pulse of negative edge.
Graphene oxide (graphene oxide) is a kind of important derivant of Graphene, mainly peels off graphite by chemical method and obtains.Compare with Graphene, graphene oxide not only has planar structure, and containing the more oxygen functional group that contains, this makes graphene oxide can be distributed in all kinds of solvents, has greatly expanded the range of application of graphene oxide in material, chemical agent sensor field; Self has photoluminescent property graphene oxide, and externally emission wavelength is the fluorescence of 500nm-700nm under the exciting of laser, therefore can prepare fluorescence probe, makes up fluorescent optical sensor.Graphene oxide is monoatomic layer graphite plane structure, exist on the plane to contain the oxygen functional group, so the sp2 track that existing carbon atom forms in the graphene oxide molecular structure has the sp3 track of oxygen atom formation again; The electronics that is positioned on sp2 track and the sp3 track can be launched the fluorescence of specific wavelength to the transition of low-lying level track in the transition process under the exciting of continuous laser; But owing to be positioned at the stronger constraint that a large amount of electronics on the sp3 track are subjected to oxygen atom, mobility is lower, only can launch faint fluorescence under the exciting of laser, the fluorescence intensity that its intensity will be launched by the transition of sp2 track much smaller than electronics.We discover after the two ends of graphene oxide sample add the voltage with square wave characteristic, graphene oxide will launch have with frequency response should or the fluorescent pulse of frequency multiplication response characteristic.As Fig. 4 and shown in Figure 5, in some specific position sp2 tracks and the sp3 track close proximity on graphene oxide surface, electronics is subjected to electric field action power F and graphene oxide internal action power
fActing in conjunction.Under electric field action, after electron motion is transferred to the sp2 track by the sp3 track, makes that the electron number to the transition of low-lying level track significantly increases from the sp2 track, thereby fluorescence is strengthened suddenly.Because trajectory of electrons qualitative framework really makes and only can be transferred to the sp2 track by the sp3 track at (being that the electric field intensity of voltage is 150V/mm ~ 400V/mm scope in) electronics under the specific voltage effect, therefore under the square wave electric field action in rising edge or negative edge generation light pulse.As the schematic diagram of Fig. 4 for frequency multiplication response generation.When electronics is subjected to the direction of electric field action power F and the graphene oxide internal action power that electronics is subjected to
fDirection on same straight line and direction when opposite, this moment is when applying electric field (F ≠ 0), electronics is transferred to sp2 by the sp3 track makes fluorescence intensity strengthen (shown in two curved arrow of figure middle and upper part) suddenly, and namely fluorescence intensity strengthens suddenly with the rising edge of square wave; When removing electric field (F=0), electron back strengthens fluorescence intensity suddenly to moving to sp2, and namely the intensity of fluorescent pulse strengthens (shown in two curved arrow in figure middle and lower part) suddenly with the negative edge of square wave; Because electric field action is namely all transferred to the sp2 track via the sp3 track, thereby with the rising edge of external modulation square wave and negative edge generation fluorescent pulse, has been formed frequency doubling light pulse with to cancel the back trajectory of electron motion consistent.Be illustrated in figure 5 as the schematic diagram of answering with frequency response, the electronics that be positioned on the sp3 track this moment is subjected to the direction of electric field action power F and the attractive force of the graphene oxide inside that electronics is subjected to
fDirection not on same straight line, the variation of making a concerted effort to have determined electron trajectory of the two.When removing electric field (F=0), electronics only is subjected to graphene oxide internal action power
fEffect.Because to cancel the back trajectory of electron motion inconsistent with electric field under the electric field action, electronics can be transferred to sp2 track (shown in two curved arrow in figure middle and lower part) via the sp3 track after only cancelling electric field, so only light pulse appears in the negative edge at the square wave electric field, thereby forms with light pulse frequently.
Because it is unknown can producing the position distribution that should reach the frequency multiplication response with frequency response on the graphene oxide sample surfaces, therefore need scan sample surfaces with continuous laser, by determine sample surfaces can produce with frequency response should or the position of frequency multiplication response, just can produce and have the light pulse that should reach the frequency multiplication response characteristic with frequency response.Maximum electric field intensity is 150 V/mm ~ 400V/mm, can guarantee that the graphene oxide surface emitting goes out fluorescence and structure can not change.
Electric field driven graphene oxide electronics of the present invention shifts the device that produces light pulse and realizes by the following technical solutions: a kind of electric field driven graphene oxide electronics shifts the device that produces light pulse, comprise a continuous wave laser, the emitting light path that the emitting light path of described continuous wave laser is provided with a face normal and continuous wave laser is 45 ° dichroic mirror; The three-dimensional manometer translation stage that is provided with micro objective on the reflected light path of dichroic mirror in turn and which is provided with microslide; The working surface of described microslide is perpendicular to reflected light path; Be provided with 500 ~ 700nm optical filter, pin hole and single-photon detector on the dichroic mirror transmitted light path in turn; The signal output part of single-photon detector is connected with computer data acquiring and control system; Also comprise the square-wave voltage output unit; The microslide two ends respectively are provided with an electrode, and the voltage output end of square-wave voltage output unit is connected with described two electrodes respectively; The maximum electric field strength range of described square-wave voltage output unit output voltage is 150V/mm ~ 400V/mm; Described computer data acquiring is connected with the I/O bidirectional port of three-dimensional manometer translation stage with the signal I/O end of control system.
The graphene oxide sample is positioned on the microslide of three-dimensional manometer translation stage, the two ends of graphene oxide sample are connected with two electrodes respectively, and continuous wave laser emission continuous laser focuses on the graphene oxide sample surfaces; The voltage that square-wave voltage output unit output simultaneously has the square wave characteristic, the maximum electric field intensity that this voltage produces is 150 V/mm ~ 400V/mm, this electric field intensity can guarantee that the graphene oxide surface emitting goes out fluorescence and structure can not change; Described voltage with square wave characteristic is loaded into the two ends of graphene oxide sample by two electrodes, simultaneous oxidation Graphene sample is launched fluorescence under the exciting of laser, the fluorescence launched is through seeing through dichroic mirror and through the light of other wavelength of 500 ~ 700nm optical filter elimination except fluorescence, entering the receiving end of single-photon detector again behind the spatial filtering of needle passing hole after the focusing of micro objective; Single-photon detector is converted into corresponding electric signal with the fluorescence light intensity signal that receives, and this electric signal inputed to computer data acquiring and control system, computer data acquiring and control system are under the support of corresponding software, it is mobile in the direction that is parallel to light path at first to handle the three-dimensional manometer translation stage, when treating that fluorescence intensity can accurately be surveyed by single-photon detector, the microslide that begins again to handle on the three-dimensional manometer translation stage is mobile in the direction perpendicular to light path, realization excites and scans the graphene oxide sample surfaces, answer phenomenon up to obtaining the same frequency response that fluorescence that shot point the sends negative edge with square wave increases suddenly, perhaps the frequency multiplication response phenomenon that increases suddenly with the negative edge of square wave and rising edge of the fluorescence that sends of shot point; Just obtained to be shifted by electric field driven graphene oxide electronics the light pulse of the fluorescence enhancing that causes this moment.Find can produce with frequency response should or the position of the light pulse of frequency multiplication response, just single-photon detector can be removed, fluorescent pulse is introduced in the device of this pulsed light of needs, be used.This light pulse is different from the common light pulse that produces with external optical modulater control, and its intensity only is to strengthen suddenly with the negative edge of external modulation square wave voltage signal and rising edge.Computer data acquiring and control system generally comprise a data capture card and a computer system; Data collecting card is used for gathering the electric signal that the single-photon detector transmission comes, computer system is then under the support of corresponding software, the control data collecting card is to the collecting work of fluorescence signal, control the movement of three-dimensional manometer translation stage simultaneously, and with sample the positional information of each luminous point that is stimulated and the characteristic of the fluorescence that launch this position are carried out analysis-by-synthesis, pointwise provides fluorescence intensity that sample launched by laser excitation curve over time, finally obtain can taking place on the sample with frequency response should or the positional information of frequency multiplication response, so just can obtain to have with frequency response should or the fluorescent pulse of frequency multiplication response characteristic.Described corresponding software is those skilled in the art's known technology, is easy to write.Described square-wave voltage output unit is those skilled in the art's known technology, has multiple structure and model available.Described three-dimensional manometer translation stage is provided with control system, can also can outwards be exported the position signalling of self by computer system control.
Described dichroic mirror has the light-splitting device of dichroism, and its characteristic is the light of two kinds of different wave lengths to be realized the effect of transmission and reflection respectively.The selected dichroic mirror of the present invention can reflect the shortwave of continuous wave laser and see through the fluorescence of sample emission.Micro objective is used for that laser to incident focuses on and the fluorescence of outgoing is converged collection, can be radiated on the graphene oxide sample after laser is focused on and make the graphene oxide sample launch fluorescence, and collect the fluorescence of graphene oxide stimulated emission in a large number, by dichroic mirror, enter the receiving end of single-photon detector after filtration behind the spatial filtering of the optical filtering of mating plate, pin hole again.
The present invention obtained a kind of negative edge with external modulation signal (square wave) and rising edge and rinforzando with frequency response should or the light pulse signal of frequency multiplication response, can be widely used in fields such as time resolved spectroscopy, three-dimensional optical imaging and optical information processing, fill up the technological gap in this field.
Description of drawings
Fig. 1 apparatus structure synoptic diagram of the present invention.
The fluorescent pulse signal schematic representation that Fig. 2 answers with frequency response.
The fluorescent pulse signal schematic representation of Fig. 3 frequency multiplication response.
The stressed movement locus synoptic diagram of electronics under the electric field action of Fig. 4 frequency multiplication response.
The stressed movement locus synoptic diagram of electronics under the electric field action that Fig. 5 answers with frequency response.
The 1-continuous wave laser, 2-dichroic mirror, 3-micro objective, 4-three-dimensional manometer translation stage, 5-microslide, 6-optical filter, 7-pin hole, 8-single-photon detector, 9-computer data acquiring and control system, 10-high-voltage amplifier, 11-function signal generator.
Embodiment
A kind of electric field driven graphene oxide electronics shifts the method that produces light pulse, may further comprise the steps: (a) load the voltage through the square-wave signal modulation at the two ends of the graphene oxide sample for preparing; The maximum electric field strength range of described voltage is that 150V/mm ~ 400V/mm(can select 150 V/mm, 200 V/mm, 250 V/mm, 300 V/mm, 350 V/mm, 400 V/mm); (b) adopt continuous laser to focus on the graphene oxide sample surfaces, graphene oxide sample emitting fluorescence under the exciting of laser focusing; Collect the fluorescence of sample diverse location emission, and convert the light intensity signal of fluorescence to corresponding electric signal, determine the relation of fluorescence with the square-wave voltage that applies of the emission of each position of graphene oxide sample, can produce on the record sample with frequency response should or the positional information that responds of frequency multiplication; The described fluorescent pulse intensity of stimulated emission on the sample that should refer to frequency response is with the rinforzando phenomenon of the negative edge of square-wave voltage; The fluorescent pulse intensity that the response of described frequency multiplication refers to stimulated emission on the sample is with the equal rinforzando phenomenon of the negative edge of square-wave voltage and rising edge; (c) adopt continuous laser to excite these positions respectively, just obtained with the negative edge enhancing suddenly of external modulation square wave or with rising edge and the rinforzando fluorescent pulse of negative edge.
A kind of electric field driven graphene oxide electronics shifts the device that produces light pulse, comprises a continuous wave laser 1, and the emitting light path that the emitting light path of described continuous wave laser 1 is provided with a face normal and continuous wave laser 1 is 45 ° dichroic mirror 2; The three-dimensional manometer translation stage 4 that is provided with micro objective 3 on the reflected light path of dichroic mirror 2 in turn and which is provided with microslide 5; The working surface of described microslide 5 is perpendicular to reflected light path; Be provided with 500 ~ 700nm(in turn on dichroic mirror 2 transmitted light paths and can select 500nm, 510nm, 520nm, 530nm, 540nm, 550nm, 560nm, 570nm, 580nm, 590nm, 600nm, 610nm, 620nm, 630nm, 640nm, 650nm, 660nm, 670nm, 680nm, 690nm, 700nm) optical filter 6, pin hole 7 and single-photon detector 8; The signal output part of single-photon detector 8 is connected with computer data acquiring and control system 9; Also comprise the square-wave voltage output unit; Microslide 5 two ends respectively are provided with an electrode, and the voltage output end of square-wave voltage output unit is connected with described two electrodes respectively; The maximum electric field strength range of described square-wave voltage output unit output voltage is that 150V/mm ~ 400V/mm(can select 150 V/mm, 200 V/mm, 250 V/mm, 300 V/mm, 350 V/mm, 400 V/mm); Described computer data acquiring is connected with the I/O bidirectional port of three-dimensional manometer translation stage 4 with the signal I/O end of control system 9.Used continuous wave laser 1 shoot laser wavelength is that 612nm ~ 662nm(can select 612nm, 622nm, 632nm, 642nm, 652nm, 662nm).Described square-wave voltage output unit comprises high-voltage amplifier 10 and the function signal generator 11 that is connected with high-voltage amplifier 10; The signal output part of described function signal generator 11 is connected with the signal input part of high-voltage amplifier 10 driver modules; The voltage output end of high-voltage amplifier 10 is connected with two electrodes of microslide 5 respectively.
Continuous wave laser 1 model picoQuant, PDL808 type, shoot laser wavelength are 632nm, we select for use the laser of this wavelength that the graphene oxide sample is excited through a large amount of experiment showed,, institute's excited fluorescent intensity maximum.Usually select the optical filter of 670nm for use, this be because the fluorescence of graphene oxide emission in 670nm intensity maximum.The model of three-dimensional manometer translation stage 4 is Tritor 200/20 SG, the model of single-photon detector 8 is SPCM-15, the model of function signal generator 11 is Agilent, 33250A, and computer data acquiring and control system 9 mainly contain NI 6251 data collecting cards and the LabVIEW program is formed.
During concrete enforcement, graphene oxide sample 5 is to prepare with the method that is coated with, be that to be diluted to concentration be 0.004mg/ml for the graphene oxide solution (diameter 1-5 micron, thickness 0.8-1.2 nanometer, purity＞99%, individual layer rate＞99%) of 0.5mg/ml with concentration, through making graphene oxide fully dilution in solution after the centrifugal concussion, with being coated with instrument the graphene oxide sample solution is coated with on glass substrate then, treats namely to prepare the graphene oxide sample after the solvent evaporation is done.Add the aluminum electrode at the sample two ends.
The square-wave modulation signal (200mHz) of function signal generator 11 outputs is loaded into the drive end of high-voltage amplifier 10, make the high-voltage signal of high-voltage amplifier 10 output 0-1500V be added in the two ends of graphene oxide sample, the electric field maximum intensity scope of generation is 150V/mm ~ 400V/mm.The laser of continuous wave laser 1 output by optical lens components group (shaping prism, condenser lens, catoptron) back by micro objective (100 *, oil immersion) focuses on the graphene oxide sample 5, the fluorescence that sample is launched after laser excitation is collected by micro objective 3, is undertaken entering single-photon detector 8 and carrying out data collection and analysis with computer data acquiring and control system 9 behind the spatial filtering by optical filter 6 and pin hole 7.
Fig. 2 answers curve synoptic diagram for above-mentioned voltage is added to the same frequency response that produces behind the two ends of graphene oxide sample.Do not having under the situation of electric field action, the fluorescent photon counting is about 10kcps, and the same frequency pulse signal of negative edge is 80kcps after applying electric field.
Fig. 3 is added to the frequency multiplication response curve synoptic diagram that produces behind the two ends of graphene oxide sample for above-mentioned voltage.Do not having under the situation of electric field action, fluorescent photon counting is about 5kcps, and the double frequency pulse signal that occurs simultaneously at rising edge and negative edge after applying electric field is 80kcps.
Fig. 4 is subjected to electric field action power movement locus schematic diagram for the electronics that the frequency multiplication response produces.The direction and the electronics that are subjected to electric field action power F when electronics are subjected to graphene oxide sample interior acting force
fDirection on same straight line, this moment when applying electric field (F ≠ 0), electronics is transferred to sp2 by the sp3 track strengthens fluorescence suddenly, namely fluorescence intensity strengthens suddenly at the negative edge of square wave; When removing electric field (F=0), electron back strengthens fluorescence suddenly to moving to sp2, and namely fluorescence intensity strengthens suddenly at the rising edge of square wave; Because electric field action is namely all transferred to the sp2 track via the sp3 track with to cancel the back trajectory of electron motion consistent, thus simultaneously externally the rising edge of modulated square wave and negative edge produce fluorescent pulse, formed the light pulse that frequency multiplication responds.
Figure 5 shows that the electronics that should produce with frequency response is subjected to electric field action power movement locus schematic diagram, be positioned at direction and the electronics that electronics on the sp3 track is subjected to electric field action power F this moment and be subjected to graphene oxide sample interior acting force
fDirection not on same straight line, the variation of making a concerted effort to have determined electron trajectory of the two.When removing electric field (F=0), electronics only is subjected to graphene oxide sample interior acting force
fEffect.Because to cancel the back trajectory of electron motion inconsistent with electric field under the electric field action, electronics can be transferred to the sp2 track via the sp3 track after only cancelling electric field, and so only light pulse appears in the negative edge at the square wave electric field, thereby forms the light pulse of answering with frequency response.
Claims (9)
1. an electric field driven graphene oxide electronics shifts the method that produces light pulse, it is characterized in that, may further comprise the steps: (a) load the voltage through the square-wave signal modulation at the two ends of the graphene oxide sample for preparing; The maximum electric field strength range of described voltage is 150V/mm ~ 400V/mm; (b) adopt continuous laser to focus on the graphene oxide sample surfaces, graphene oxide sample emitting fluorescence under the exciting of laser focusing; Collect the fluorescence of sample diverse location emission, and convert the light intensity signal of fluorescence to corresponding electric signal, determine the relation of fluorescence with the square-wave voltage that applies of the emission of each position of graphene oxide sample, can produce on the record sample with frequency response should or the positional information that responds of frequency multiplication; The described fluorescent pulse intensity of stimulated emission on the sample that should refer to frequency response is with the rinforzando phenomenon of the negative edge of square-wave voltage; The fluorescent pulse intensity that the response of described frequency multiplication refers to stimulated emission on the sample is with the equal rinforzando phenomenon of the negative edge of square-wave voltage and rising edge; (c) adopt continuous laser to excite these positions respectively, just obtained with the negative edge enhancing suddenly of external modulation square wave or with rising edge and the rinforzando fluorescent pulse of negative edge.
2. an electric field driven graphene oxide electronics shifts the device that produces light pulse, be used for realizing that electric field driven graphene oxide electronics as claimed in claim 1 shifts the method that produces light pulse, it is characterized in that, comprise a continuous wave laser (1), the emitting light path that the emitting light path of described continuous wave laser (1) is provided with a face normal and continuous wave laser (1) is 45 ° dichroic mirror (2); The three-dimensional manometer translation stage (4) that is provided with micro objective (3) on the reflected light path of dichroic mirror (2) in turn and which is provided with microslide (5); The working surface of described microslide (5) is perpendicular to reflected light path; Be provided with 500 ~ 700nm optical filter (6), pin hole (7) and single-photon detector (8) on dichroic mirror (2) transmitted light path in turn; The signal output part of single-photon detector (8) is connected with computer data acquiring and control system (9); Also comprise the square-wave voltage output unit; Microslide (5) two ends respectively are provided with an electrode, and the voltage output end of square-wave voltage output unit is connected with described two electrodes respectively; The maximum electric field strength range of described square-wave voltage output unit output voltage is 150V/mm ~ 400V/mm; Described computer data acquiring is connected with the I/O bidirectional port of three-dimensional manometer translation stage (4) with the signal I/O end of control system (9).
3. electric field driven graphene oxide electronics as claimed in claim 2 shifts the device that produces light pulse, it is characterized in that used continuous wave laser (1) shoot laser wavelength is 612nm ~ 662nm.
4. shift the device that produces light pulse as claim 2 or 3 described electric field driven graphene oxide electronics, it is characterized in that continuous wave laser (1) shoot laser wavelength is 632nm.
5. shift the device that produces light pulse as claim 2 or 3 described electric field driven graphene oxide electronics, it is characterized in that described optical filter (6) is the 670nm filter plate.
6. electric field driven graphene oxide electronics as claimed in claim 4 shifts the device that produces light pulse, it is characterized in that described optical filter (6) is the 670nm filter plate.
7. shift the device that produces light pulse as claim 2 or 3 described electric field driven graphene oxide electronics, it is characterized in that described square-wave voltage output unit comprises high-voltage amplifier (10) and the function signal generator (11) that is connected with high-voltage amplifier (10); The signal output part of described function signal generator (11) is connected with the signal input part of high-voltage amplifier (10) driver module; The voltage output end of high-voltage amplifier (10) is connected with two electrodes of microslide (5) respectively.
8. electric field driven graphene oxide electronics as claimed in claim 4 shifts the device that produces light pulse, it is characterized in that described square-wave voltage output unit comprises high-voltage amplifier (10) and the function signal generator (11) that is connected with high-voltage amplifier (10); The signal output part of described function signal generator (11) is connected with the signal input part of high-voltage amplifier (10) driver module; The voltage output end of high-voltage amplifier (10) is connected with two electrodes of microslide (5) respectively.
9. electric field driven graphene oxide electronics as claimed in claim 6 shifts the device that produces light pulse, it is characterized in that described square-wave voltage output unit comprises high-voltage amplifier (10) and the function signal generator (11) that is connected with high-voltage amplifier (10); The signal output part of described function signal generator (11) is connected with the signal input part of high-voltage amplifier (10) driver module; The voltage output end of high-voltage amplifier (10) is connected with two electrodes of microslide (5) respectively.
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| CN105891171A (en) * | 2016-03-01 | 2016-08-24 | 中国科学院重庆绿色智能技术研究院 | Efficient high-precision low-temperature laser scanning double-focus microscope system |
| CN107720690A (en) * | 2017-10-23 | 2018-02-23 | 山西大学 | A kind of preparation facilities and method of graphene oxide film multilayer micro-nano graph |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105891171A (en) * | 2016-03-01 | 2016-08-24 | 中国科学院重庆绿色智能技术研究院 | Efficient high-precision low-temperature laser scanning double-focus microscope system |
| CN107720690A (en) * | 2017-10-23 | 2018-02-23 | 山西大学 | A kind of preparation facilities and method of graphene oxide film multilayer micro-nano graph |
| CN107720690B (en) * | 2017-10-23 | 2019-11-19 | 山西大学 | A kind of preparation facilities and method of graphene oxide film multilayer micro-nano graph |
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