Polarimeters

Details Polarimeters Polarimeters

1976-12-10

1978-10-03

Corbin, John K.

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356114, G01N 2140, G01N 404

Patent

active

041181255

ABSTRACT:
A polarimeter comprises a polariser and an analyser between which is disposed a sample whose optical activity is to be determined. Light passes through the polariser, sample and analyser to a light detector responsive to the intensity of the light transmitted by the analyser. The polariser has a fixed orientation and the analyser is rotated by a motor which is driven in synchronism with digital clock pulses. The phase of the output signal from the light detector is compared with the phase of a digital signal derived from the clock pulses to determine the optical activity of the sample.

REFERENCES:
cahan, B. D., "A High Speed Precision Automatic Ellipsometer", Surface Science, 16, pp. 166-177, 1969.

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