High resolution far infrared Fourier spectrometer using a buffered ADC

A. K. Wan Abdullah

doi:10.1117/12.2298649

30 August 1993 High resolution far infrared Fourier spectrometer using a buffered ADC

A. K. Wan Abdullah

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 210461 (1993) https://doi.org/10.1117/12.2298649
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

A far infrared Michelson interferometer which includes a laser fringe sampling channel and a hydraulicpiston to move one of the mirrors linearly has been developed. A maximum resolution of 0.08 cm-1 can be obtainedwith the present length of the piston. The buffered analogue-to-digital converter unit allows the interferogrampoints to be transferred in blocks to a storage device while the mirror is travelling. The instrument has been usedto detect weak absorption bands due to water vapour believed to be either adsorbed onto or trapped in the filmof chemically modified epoxidised natural rubber.

Citation Download Citation

A. K. Wan Abdullah "High resolution far infrared Fourier spectrometer using a buffered ADC", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 210461 (30 August 1993); https://doi.org/10.1117/12.2298649

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