JPS54134482A - Analysis of neodymium in yag crystal - Google Patents

Analysis of neodymium in yag crystal

Info

Publication number
JPS54134482A
JPS54134482A JP4244178A JP4244178A JPS54134482A JP S54134482 A JPS54134482 A JP S54134482A JP 4244178 A JP4244178 A JP 4244178A JP 4244178 A JP4244178 A JP 4244178A JP S54134482 A JPS54134482 A JP S54134482A
Authority
JP
Japan
Prior art keywords
sample
angstrom
concentration
measured
wavelength
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4244178A
Other languages
Japanese (ja)
Inventor
Kenichi Shiraki
Yasuhiko Kuwano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4244178A priority Critical patent/JPS54134482A/en
Publication of JPS54134482A publication Critical patent/JPS54134482A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

PURPOSE:To quantitize accurately the Nd content in a YAG single crystal with the use of a small quantity of sample by using the absorption intensity of a preset wavelength in the sample, which is measured by spectrophotometer. CONSTITUTION:A sample having its Nd concentration N known is measured with a wavelength of 5889 Angstrom to obtain an optical density. Equation of P=0.435KNL - logR [wherein: L stands for the thickness of the sample: R stands for the reflective index, when light passes over the sample surface, which is calculated from the measured value of P in the wavelength of no absorption] is used to calculate a coefficient of optical absorption K (wherein K exhibits a substantially constant value of 0.97 at %<-1> mm<-1> independently of the concentration of Nd). Then, a sample having its Nd concentration unknown is measured to quantitize the concentration N with the use of the value K obtained in the above and the above- specified Equation. Incidentally, 7848 Angstrom and 8087 Angstrom can be used as the measuring wavelength in addition to the above-specified 5889 Angstrom .
JP4244178A 1978-04-10 1978-04-10 Analysis of neodymium in yag crystal Pending JPS54134482A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4244178A JPS54134482A (en) 1978-04-10 1978-04-10 Analysis of neodymium in yag crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4244178A JPS54134482A (en) 1978-04-10 1978-04-10 Analysis of neodymium in yag crystal

Publications (1)

Publication Number Publication Date
JPS54134482A true JPS54134482A (en) 1979-10-18

Family

ID=12636154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4244178A Pending JPS54134482A (en) 1978-04-10 1978-04-10 Analysis of neodymium in yag crystal

Country Status (1)

Country Link
JP (1) JPS54134482A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103257113A (en) * 2013-05-08 2013-08-21 青岛海泰光电技术有限公司 Method for measuring neodymium ion doping concentration in crystal material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103257113A (en) * 2013-05-08 2013-08-21 青岛海泰光电技术有限公司 Method for measuring neodymium ion doping concentration in crystal material

Similar Documents

Publication Publication Date Title
JPS6457148A (en) Optically measuring apparatus
EP0286195A3 (en) Method and apparatus for detecting low concentrations of (bio)- chemical components in a test medium using surface plasmon resonance
JPS54134482A (en) Analysis of neodymium in yag crystal
JPS56115905A (en) Measuring method for thickness of transparent film and device therefor
JPS52105877A (en) Measurement of water content trapped in granular body
JPS55124069A (en) Measuring method of concentration of suspended matter in water and organic index
JPS5582032A (en) Out-off wavelength measuring method for lp11 mode in optical fiber and measuring unit
JPS5413356A (en) Optical excitation of optical fiber
JPS545778A (en) Gas density analyzer
Karklina et al. Dioxyacetone measurement in the culture liquids of Acetobacter suboxydans.
JPS54113383A (en) Method and apparatus for measuring enzyme
SU908322A1 (en) Device for determining iron in blood serum
JPS55144529A (en) Optical device for measuring microplate
JPS5353348A (en) Optical fiber length measuring method and apparatus
JPS5362546A (en) Measuring method and apparatus of propagation characteristics of optical guide
JPS573020A (en) Temperature measuring method
JPS5763430A (en) Temperature measurement for deep part by laser
JPS53146652A (en) Optical line structure measuring device
JPS56111446A (en) Photometric analyzer of cell-length modulation system
JPS64448A (en) Instrument for measuring preservation condition of medium
JPS54104378A (en) Measuring method of concentrations of hexad chromium
JPS5359482A (en) Dispersion measuring method of glass stock material
JPS5655840A (en) Continuous measurement of concentration of inorganic compound in water solution
JPS57153250A (en) Measuring apparatus of spectral transmissivity of polarizable sample
JPS5739323A (en) Spectroscopic measuring method