GB1428813A - Polarization interferometer with beam polarizing and retarding mea ns - Google Patents

Polarization interferometer with beam polarizing and retarding mea ns

Info

Publication number
GB1428813A
GB1428813A GB2296273A GB2296273A GB1428813A GB 1428813 A GB1428813 A GB 1428813A GB 2296273 A GB2296273 A GB 2296273A GB 2296273 A GB2296273 A GB 2296273A GB 1428813 A GB1428813 A GB 1428813A
Authority
GB
United Kingdom
Prior art keywords
linear
dichroism
interferometer
detector
ellipticity
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.)
Expired
Application number
GB2296273A
Other languages
English (en)
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.)
Varian Medical Systems Inc
Original Assignee
Varian Associates Inc
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 Varian Associates Inc filed Critical Varian Associates Inc
Publication of GB1428813A publication Critical patent/GB1428813A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02055—Reduction or prevention of errors; Testing; Calibration
    • G01B9/0207—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer
    • G01B9/02071—Error reduction by correction of the measurement signal based on independently determined error sources, e.g. using a reference interferometer by measuring path difference independently from interferometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/02001—Interferometers characterised by controlling or generating intrinsic radiation properties
    • G01B9/02011—Interferometers characterised by controlling or generating intrinsic radiation properties using temporal polarization variation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/0209—Low-coherence interferometers
    • 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
    • G01N21/19—Dichroism
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/15—Cat eye, i.e. reflection always parallel to incoming beam
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/70—Using polarization in the interferometer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)
GB2296273A 1972-05-15 1973-05-15 Polarization interferometer with beam polarizing and retarding mea ns Expired GB1428813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25330372A 1972-05-15 1972-05-15

Publications (1)

Publication Number Publication Date
GB1428813A true GB1428813A (en) 1976-03-17

Family

ID=22959706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2296273A Expired GB1428813A (en) 1972-05-15 1973-05-15 Polarization interferometer with beam polarizing and retarding mea ns

Country Status (5)

Country Link
JP (1) JPS4956645A (enExample)
CA (1) CA979638A (enExample)
DE (1) DE2324502A1 (enExample)
FR (1) FR2184829B1 (enExample)
GB (1) GB1428813A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167554A (en) * 1984-11-21 1986-05-29 Sharp Kk Optically sensing device
CN113574362A (zh) * 2019-03-15 2021-10-29 日本分光株式会社 圆二色性测定装置以及圆二色性测定方法
CN118655091A (zh) * 2024-08-21 2024-09-17 西北工业大学 一种高灵敏度圆二色谱精密测量装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3579238D1 (de) * 1985-04-24 1990-09-20 Nt Ob Akademii Nauk Sssr Interferenz-polarisationsrefraktometer.
FR2685763B1 (fr) * 1991-12-27 1994-03-25 Aime Vareille Procede et dispositif optiques de mesure de distance et leur application au positionnement relatif de pieces.
WO2004079313A1 (ja) * 1993-11-17 2004-09-16 Isao Tokumoto マイケルソン干渉計

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167554A (en) * 1984-11-21 1986-05-29 Sharp Kk Optically sensing device
CN113574362A (zh) * 2019-03-15 2021-10-29 日本分光株式会社 圆二色性测定装置以及圆二色性测定方法
EP3940368A4 (en) * 2019-03-15 2022-12-14 JASCO Corporation DEVICE AND METHOD FOR MEASUREMENT OF CIRCULAR DICHROISM
US11879833B2 (en) 2019-03-15 2024-01-23 Jasco Corporation Circular dichroism measurement device and circular dichroism measurement method
CN113574362B (zh) * 2019-03-15 2024-08-09 日本分光株式会社 圆二色性测定装置以及圆二色性测定方法
CN118655091A (zh) * 2024-08-21 2024-09-17 西北工业大学 一种高灵敏度圆二色谱精密测量装置及方法

Also Published As

Publication number Publication date
DE2324502A1 (de) 1973-11-29
JPS4956645A (enExample) 1974-06-01
FR2184829B1 (enExample) 1974-05-17
FR2184829A1 (enExample) 1973-12-28
CA979638A (en) 1975-12-16

Similar Documents

Publication Publication Date Title
US2815452A (en) Interferometer
US4746216A (en) Angle measuring interferometer
US3847485A (en) Optical noncontacting surface sensor for measuring distance and angle of a test surface
GB1409339A (en) Interferometer system
US4717250A (en) Angle measuring interferometer
US3584959A (en) Shaft position encoders
US4329055A (en) Interferometer apparatus for measuring the wavelengths of optical radiation
JPH03504643A (ja) 偏光干渉計
GB1212946A (en) Polarimeter
US4334778A (en) Dual surface interferometer
US3738754A (en) Optical contacting systems for positioning and metrology systems
US3708229A (en) System for measuring optical path length across layers of small thickness
GB1428813A (en) Polarization interferometer with beam polarizing and retarding mea ns
US3471239A (en) Interferometric apparatus
US4906095A (en) Apparatus and method for performing two-frequency interferometry
CN109489837A (zh) 一种基于光学干涉仪的多波长计
GB1392395A (en) Stabilization of optical path length differences
JP3131242B2 (ja) 光ビーム入射角の測定方法、測定装置及び該装置を距離測定に使用する方法
US3984153A (en) Apparatus to transform a single laser beam into two parallel beams of adjustable spacing and intensity
GB1367886A (en) Measuring apparatus
US3419331A (en) Single and double beam interferometer means
US10563975B1 (en) Dual-sensor arrangment for inspecting slab of material
US11365989B2 (en) Method and system for contactless detection of rotational movement
EP0050144B1 (en) Process for measuring motion- and surface characterizing physical parameters of a moving body
GB1454675A (en) Optical system for objective refractor for the eye

Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee