CN113290320A - Preparation method of Ag-based film with nonlinear reverse saturable absorption enhancement characteristic - Google Patents
Preparation method of Ag-based film with nonlinear reverse saturable absorption enhancement characteristic Download PDFInfo
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- CN113290320A CN113290320A CN202110557462.3A CN202110557462A CN113290320A CN 113290320 A CN113290320 A CN 113290320A CN 202110557462 A CN202110557462 A CN 202110557462A CN 113290320 A CN113290320 A CN 113290320A
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- film
- nonlinear
- saturable absorption
- absorption enhancement
- glass substrate
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011521 glass Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 14
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000005566 electron beam evaporation Methods 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 5
- 239000010409 thin film Substances 0.000 claims 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001965 increasing effect Effects 0.000 abstract description 3
- 239000002923 metal particle Substances 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000089 atomic force micrograph Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
- B23K26/3568—Modifying rugosity
- B23K26/3584—Increasing rugosity, e.g. roughening
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/003—Light absorbing elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F3/00—Optical logic elements; Optical bistable devices
- G02F3/02—Optical bistable devices
- G02F3/024—Optical bistable devices based on non-linear elements, e.g. non-linear Fabry-Perot cavity
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention provides a preparation method of an Ag-based film with a nonlinear reverse saturable absorption enhancement characteristic, which is characterized in that a pulse laser is utilized to strip the Ag film on the surface of a glass substrate, the surface roughness of the film is changed, the size of metal particles is increased, and the effect of enhancing the nonlinear reverse saturable absorption of the Ag-based film is further achieved.
Description
Technical Field
The invention relates to the technical field of nonlinear optics, in particular to a preparation method of an Ag-based film with nonlinear reverse saturated absorption enhancement characteristics.
Background
Nonlinear optics is a branch of modern optics, and researches are carried out on the change and application of optical properties of materials under the action of strong coherent light. In the field of nonlinear optics, the scientific community has made two major breakthroughs in the past decades through the diligent efforts of scientists: one is that the femtosecond laser generates a plurality of unique properties after the femtosecond laser and a medium act, such as small heat effect, small acting area, space selectivity and the like, and the properties have important application value in the field of hyperfine processing; and the other is that the novel optical nonlinear crystal is used for manufacturing a continuous or picosecond pulse optical parametric oscillator and an optical parametric amplifier which can be tuned in a wide wavelength range.
Reverse saturation absorption is a typical nonlinear optical phenomenon, which is characterized by the fact that the absorption coefficient of a medium increases with increasing light intensity. Electrons in a low energy state are excited and then transit to a high energy state, and when the absorption cross section of the excited state is larger than that of the ground state, reverse saturable absorption is exhibited. The reverse saturable absorption can be used as an absorbing optical switch or an absorbing optical bistable device. In order to enhance the nonlinear optical effect of the material, there are methods of growing a semiconductor by introducing a precursor, preparing a heterojunction, etc., however, these methods are harsh to the preparation conditions, and use related chemical reagents, which increase the difficulty of post-processing.
Disclosure of Invention
The invention aims to provide a preparation method of an Ag-based film, which is simple and can effectively enhance the nonlinear rice cooker and the absorption effect of the Ag-based film.
In order to achieve the purpose, the invention provides a preparation method of an Ag-based film with nonlinear reverse saturable absorption enhancement characteristics, which is characterized in that a pulse laser is used for stripping the Ag film on the surface of a glass substrate.
Further, the method comprises the following steps:
step 1: placing a K9 glass substrate in a coating clamp;
step 2: depositing an Ag layer by adopting an electron beam evaporation method in a vacuum environment;
and step 3: stripping the Ag film by using a pulse laser to obtain the nonlinear Ag-based film with the anti-saturation absorption enhancement characteristic.
Further, in the step 1, the method further comprises the step of pretreating the K9 glass substrate, wherein the K9 glass substrate is sequentially subjected to ultrasonic cleaning for 15min by acetone, ethanol and deionized water, and then is dried by nitrogen to obtain the clean and dry K9 glass substrate.
Further, in step 2, the vacuum environment is a vacuum degree greater than 5 × 10-4Environment of Pa.
Further, in step 2, the thickness of the Ag layer is 100 nm.
Further, in step 3, the wavelength of the pulse laser is 1064nm, the power of the pulse laser is 5-8W, and the scanning speed is 500-800 mm/s.
Compared with the prior art, the invention has the advantages that: the invention utilizes the pulse laser (with the wavelength of 1064nm) to carry out surface treatment on the Ag film, changes the surface roughness of the film, enlarges the size of metal particles, further achieves the effect of enhancing the nonlinear reverse saturation absorption of the Ag-based film, and has important application in an absorption type switch or an absorption type optical bistable device; the method has simple preparation process, no pollution to the environment and obvious effect.
Drawings
FIG. 1 is an AFM image of a metal Ag film layer deposited on a glass substrate in an embodiment of the invention;
FIG. 2 is an AFM image after stripping a metal Ag film layer using a pulsed laser (wavelength 1064nm) in an embodiment of the present invention;
fig. 3 is a Z-scan used to characterize the nonlinear optical properties of two Ag-based films in an example of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described below.
Examples
In the embodiment, an electron beam evaporation method is adopted, and a K9 glass substrate is sequentially subjected to ultrasonic cleaning for 15min by acetone, alcohol and deionized water and then placed in a coating clamp of an electron beam evaporation system; placing the Ag film material in a crucible; when the vacuum degree is kept at a certain degree, the Ag film layer is deposited at a certain speed, and the surface topography of the Ag film layer is shown in figure 1. Then, a pulsed laser (wavelength of 1064nm) is used to perform laser lift-off on the silver film layer at a certain power and speed, and the surface topography is shown in fig. 2.
Wherein the certain vacuum degree is more than 5 multiplied by 10 < -4 > Pa; the certain rate is
The certain power is 5-8W; the certain speed is 500-800 mm/s.
Action and effects of the implementation
According to the preparation method of the Ag-based film with the nonlinear reverse saturable absorption enhancement characteristic, after the film surface is stripped by a pulse laser (with the wavelength of 1064nm), the size of metal particles is increased as shown in figure 2, the nonlinear reverse saturable absorption characteristic is obviously enhanced as shown in figure 3, and the preparation method has important application in an absorption type optical switch or an absorption type optical bistable device.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A preparation method of an Ag-based film with nonlinear reverse saturable absorption enhancement characteristics is characterized in that a pulse laser is used for stripping the Ag film on the surface of a glass substrate.
2. The method for preparing an Ag-based thin film with nonlinear reverse saturable absorption enhancement characteristics as claimed in claim 1, comprising the steps of:
step 1: placing a K9 glass substrate in a coating clamp;
step 2: depositing an Ag layer by adopting an electron beam evaporation method in a vacuum environment;
and step 3: stripping the Ag film by using a pulse laser to obtain the nonlinear Ag-based film with the anti-saturation absorption enhancement characteristic.
3. The method for preparing an Ag-based film with nonlinear reverse saturable absorption enhancement characteristics as claimed in claim 2, wherein in step 1, the method further comprises the step of pretreating the K9 glass substrate, wherein the pretreatment comprises the steps of sequentially carrying out ultrasonic cleaning on the K9 glass substrate for 15min by acetone, ethanol and deionized water, and then drying by nitrogen gas to obtain a clean and dry K9 glass substrate.
4. The method as claimed in claim 2, wherein in step 2, the vacuum environment is greater than 5 x 10-4Environment of Pa.
5. The method for preparing an Ag-based thin film having nonlinear reverse saturable absorption enhancement characteristics as claimed in claim 2, wherein the thickness of the Ag layer is 100nm in step 2.
6. The method as claimed in claim 2, wherein in step 3, the wavelength of the pulse laser is 1064nm, the power of the pulse laser is 5-8W, and the scanning speed is 500-800 mm/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557462.3A CN113290320A (en) | 2021-05-21 | 2021-05-21 | Preparation method of Ag-based film with nonlinear reverse saturable absorption enhancement characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557462.3A CN113290320A (en) | 2021-05-21 | 2021-05-21 | Preparation method of Ag-based film with nonlinear reverse saturable absorption enhancement characteristic |
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| CN113290320A true CN113290320A (en) | 2021-08-24 |
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| CN202110557462.3A Pending CN113290320A (en) | 2021-05-21 | 2021-05-21 | Preparation method of Ag-based film with nonlinear reverse saturable absorption enhancement characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115141397A (en) * | 2022-08-08 | 2022-10-04 | 西南石油大学 | Composite film, preparation method and application of composite film |
Citations (8)
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|---|---|---|---|---|
| WO2002090036A1 (en) * | 2001-05-10 | 2002-11-14 | Vanderbilt University | Method and apparatus for laser ablative modification of dielectric surfaces |
| JP2003133690A (en) * | 2001-10-26 | 2003-05-09 | Matsushita Electric Works Ltd | Method for forming circuit by using ultra short pulse laser |
| CN101380693A (en) * | 2008-10-14 | 2009-03-11 | 南开大学 | Micro-nano structure preparation method on metallic material surface using femtosecond laser |
| CN101551569A (en) * | 2008-04-01 | 2009-10-07 | 中国科学院物理研究所 | Nonlinear optical material based on metal nanometer cluster array and preparation method thereof |
| CN106299032A (en) * | 2016-10-17 | 2017-01-04 | 渤海大学 | The method that femtosecond laser etching strengthens amorphous silicon thin-film solar cell performance |
| CN108220883A (en) * | 2018-01-12 | 2018-06-29 | 上海理工大学 | A kind of surface plasma performance adjustable substrate bottom of induced with laser and preparation method thereof |
| CN111204986A (en) * | 2020-01-17 | 2020-05-29 | 苏州领锐源奕光电科技有限公司 | Preparation method of novel graphene oxide-ITO (indium tin oxide) composite film |
| CN112479155A (en) * | 2020-11-26 | 2021-03-12 | 同济大学 | Method for enhancing nonlinear optical performance of tin disulfide nanosheet |
-
2021
- 2021-05-21 CN CN202110557462.3A patent/CN113290320A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090036A1 (en) * | 2001-05-10 | 2002-11-14 | Vanderbilt University | Method and apparatus for laser ablative modification of dielectric surfaces |
| JP2003133690A (en) * | 2001-10-26 | 2003-05-09 | Matsushita Electric Works Ltd | Method for forming circuit by using ultra short pulse laser |
| CN101551569A (en) * | 2008-04-01 | 2009-10-07 | 中国科学院物理研究所 | Nonlinear optical material based on metal nanometer cluster array and preparation method thereof |
| CN101380693A (en) * | 2008-10-14 | 2009-03-11 | 南开大学 | Micro-nano structure preparation method on metallic material surface using femtosecond laser |
| CN106299032A (en) * | 2016-10-17 | 2017-01-04 | 渤海大学 | The method that femtosecond laser etching strengthens amorphous silicon thin-film solar cell performance |
| CN108220883A (en) * | 2018-01-12 | 2018-06-29 | 上海理工大学 | A kind of surface plasma performance adjustable substrate bottom of induced with laser and preparation method thereof |
| CN111204986A (en) * | 2020-01-17 | 2020-05-29 | 苏州领锐源奕光电科技有限公司 | Preparation method of novel graphene oxide-ITO (indium tin oxide) composite film |
| CN112479155A (en) * | 2020-11-26 | 2021-03-12 | 同济大学 | Method for enhancing nonlinear optical performance of tin disulfide nanosheet |
Non-Patent Citations (2)
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| CN115141397A (en) * | 2022-08-08 | 2022-10-04 | 西南石油大学 | Composite film, preparation method and application of composite film |
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Application publication date: 20210824 |