A Recording Spectropolarimeter

Cary, Howard; Hawes, Roland C.; Hooper, Paige B.; Duffield, J. J.; George, K. P.

doi:10.1364/ao.3.000329

Cited by 27 publications

(2 citation statements)

References 7 publications

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“…Different commercial ORD spectropolarimeters used different ways to oscillate the polarization vector: for example, in the Rudolph units of the JASCO ORD-UV5 and J-20 instruments and in the Perkin Elmer P23 instrument, the polarizer was mechanically oscillating, while in the Cary 60 27 and in the Carl Zeiss REMP-12 apparatuses a Faraday cell was used to modulate the linear polarization feeding the sample. The other two ORD units which had been commercially available for some time (the Bendix Polarmatic 62 28 and the FICA Spectropol 1) worked on a different principle.…”

Section: Optical Null Methodsmentioning

confidence: 99%

Experimental methods for measuring optical rotatory dispersion: Survey and outlook

2011

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The measurement of optical rotation (OR) and optical rotatory dispersion has been finding renewed interest for some years, because of advancement in computational methods and in the performance of new experiments. Here, we shortly review the traditional and most-used experimental methods. We define and discuss the two main types of approaches in measuring OR: the intensity method and the optical null method. We report on some new results obtained by redesigning experiments based on the first approach, by adapting nonsophisticated hardware to current circular dichroism instrumentation.

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Section: Optical Null Methodsmentioning

confidence: 99%

Experimental methods for measuring optical rotatory dispersion: Survey and outlook

2011

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“…Calcite, a uniaxial crystal with relatively large birefringence, is most commonly used for making such polarizers; however, due to its high absorption below 2200 A., materials such as crystal quartz and magnesium fluoride, having much smaller birefringence, are employed in far ultraviolet polarizers. Polarizers using uniaxial crystals of the dihydrogen phosphate type have also been used (7) to wavelengths as short as 1850 A. Figure 5 shows several designs of birefringence polarizers of common use; the name associated with each polarizer refers to its inventor and the four digit figure to the year of invention.…”

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confidence: 99%