JPS5780545A - Measuring device for photoluminescence strength - Google Patents

Measuring device for photoluminescence strength

Info

Publication number
JPS5780545A
JPS5780545A JP15652980A JP15652980A JPS5780545A JP S5780545 A JPS5780545 A JP S5780545A JP 15652980 A JP15652980 A JP 15652980A JP 15652980 A JP15652980 A JP 15652980A JP S5780545 A JPS5780545 A JP S5780545A
Authority
JP
Japan
Prior art keywords
excited light
output
photoluminescence
caused
inp
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
JP15652980A
Other languages
Japanese (ja)
Inventor
Akio Yamaguchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15652980A priority Critical patent/JPS5780545A/en
Publication of JPS5780545A publication Critical patent/JPS5780545A/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
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6489—Photoluminescence of semiconductors

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (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, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

PURPOSE:To improve a measurement precision, by a method wherein a device is constituted such that an output of a detector sensing to only an excited light is deducted from an output of a detector sensing to photoluminescence and an excited light. CONSTITUTION:For example, InP/InGaAsP/InP sample (wavelength 1.3mu) is irradiated via a chopper 2 with an excited light from a YAG laser 1. Photoluminescence and a part of the excited light are caused to pass through a lens 4, and afte the excited light is selectively damped to about 1/1,000 by means of a filter 5, it is caused to branch through the working of a semitransparent film 6 and to enter into Ge photo diode 7 and an Si photo diode 8. A difference in output between the Ge and Si photo diodes 7 and 8 is found by an operation circuit 10 through an amplifier, whose gain is properly regulated, to send the output to a recorder 11. This improves a measurement precision of a photoluminescence strength.
JP15652980A 1980-11-07 1980-11-07 Measuring device for photoluminescence strength Pending JPS5780545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15652980A JPS5780545A (en) 1980-11-07 1980-11-07 Measuring device for photoluminescence strength

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15652980A JPS5780545A (en) 1980-11-07 1980-11-07 Measuring device for photoluminescence strength

Publications (1)

Publication Number Publication Date
JPS5780545A true JPS5780545A (en) 1982-05-20

Family

ID=15629777

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15652980A Pending JPS5780545A (en) 1980-11-07 1980-11-07 Measuring device for photoluminescence strength

Country Status (1)

Country Link
JP (1) JPS5780545A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165642A (en) * 1984-02-08 1985-08-28 Konishiroku Photo Ind Co Ltd Radiation picture information reader
JPS60187847A (en) * 1984-03-08 1985-09-25 Res Dev Corp Of Japan Infrared emission spectroscopy and its equipment
JPS61212163A (en) * 1985-03-15 1986-09-20 Konishiroku Photo Ind Co Ltd Method and device for reading radiation picture information

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165642A (en) * 1984-02-08 1985-08-28 Konishiroku Photo Ind Co Ltd Radiation picture information reader
JPS60187847A (en) * 1984-03-08 1985-09-25 Res Dev Corp Of Japan Infrared emission spectroscopy and its equipment
JPS61212163A (en) * 1985-03-15 1986-09-20 Konishiroku Photo Ind Co Ltd Method and device for reading radiation picture information

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