GB1173901A - Improvements in or relating to the Measurement of Circular Dichroism - Google Patents

Improvements in or relating to the Measurement of Circular Dichroism

Info

Publication number
GB1173901A
GB1173901A GB1380166A GB1380166A GB1173901A GB 1173901 A GB1173901 A GB 1173901A GB 1380166 A GB1380166 A GB 1380166A GB 1380166 A GB1380166 A GB 1380166A GB 1173901 A GB1173901 A GB 1173901A
Authority
GB
United Kingdom
Prior art keywords
sample
polarized
alternately
photomultiplier
beams
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
GB1380166A
Inventor
Kenneth Redfern Wilkinson
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.)
Pye Electronic Products Ltd
Original Assignee
Pye 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 Pye Ltd filed Critical Pye Ltd
Priority to GB1380166A priority Critical patent/GB1173901A/en
Priority to FR100374A priority patent/FR1515647A/en
Priority to DE19671547462 priority patent/DE1547462A1/en
Publication of GB1173901A publication Critical patent/GB1173901A/en
Expired 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
    • G01N21/19—Dichroism

Landscapes

  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

1,173,901. Photo-electric measurement of circular dichroisms. PYE Ltd. March 21, 1967 [March 29, 1966], No. 13801/66. Heading G1A. Circular dichroism is measured by plane polarizing an initially non-polarized beam of radiation, introducing two oppositely sensed circularly polarizing elements alternately into the plane polarized beam to produce alternately two beams circularly polarized in opposite rotational senses, passing the two beams through a sample and directly comparing the intensities of the two beams emergent from said sample. Infrared, visible or ultraviolet light from a variable monochromator 1 is polarized by a Rochon or Wollaston prism 5. The polarized beam is converted alternately into left and right hand circularly polarized light by achromatic circular polarizers 9, 10 alternately inserted in the beam by a drive 11 and passed through a sample 13 on to a photomultiplier 14. The A.C. output of the photomultiplier is synchronously rectified at 15, the polarity and magnitude of the signal produced indicating the sense and magnitude of the circular dichroism of the sample on a centre zero meter or recorder 13. The D. C. output of the photomultiplier is maintained substantially constant by an automatic gain control circuit.
GB1380166A 1966-03-29 1966-03-29 Improvements in or relating to the Measurement of Circular Dichroism Expired GB1173901A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1380166A GB1173901A (en) 1966-03-29 1966-03-29 Improvements in or relating to the Measurement of Circular Dichroism
FR100374A FR1515647A (en) 1966-03-29 1967-03-28 Method and apparatus for measuring circular dichroism
DE19671547462 DE1547462A1 (en) 1966-03-29 1967-03-29 Method and apparatus for measuring circular dichroism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1380166A GB1173901A (en) 1966-03-29 1966-03-29 Improvements in or relating to the Measurement of Circular Dichroism

Publications (1)

Publication Number Publication Date
GB1173901A true GB1173901A (en) 1969-12-10

Family

ID=10029645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1380166A Expired GB1173901A (en) 1966-03-29 1966-03-29 Improvements in or relating to the Measurement of Circular Dichroism

Country Status (3)

Country Link
DE (1) DE1547462A1 (en)
FR (1) FR1515647A (en)
GB (1) GB1173901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202860A (en) * 1990-03-05 1993-04-13 Sharp Kabushiki Kaisha Magneto-optic reproducing device using right and left circularly polarized light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5202860A (en) * 1990-03-05 1993-04-13 Sharp Kabushiki Kaisha Magneto-optic reproducing device using right and left circularly polarized light

Also Published As

Publication number Publication date
DE1547462A1 (en) 1969-11-13
FR1515647A (en) 1968-03-01

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees