Fast time-to-amplitude converter for pulsed time-of-flight laser rangefinding

Markku Koskinen; Jukka Typpo; Juha Tapio Kostamovaara

doi:10.1117/12.59213

1 June 1992 High-precision refractometry by hologram interferometry

Markku Koskinen, Jukka Typpo, Juha Tapio Kostamovaara

Proceedings Volume 1633, Laser Radar VII: Advanced Technology for Applications; (1992) https://doi.org/10.1117/12.59213
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

The refractive index of an optical glass sample in the form of a wedge is measured by comparison with that of a reference liquid. This holographic technique can also be applied to the measurement of the refractive index of the immersion liquid, if the refractive index of the glass wedge is known. The accuracy of the method with respect to index matching, glass wedge preparation, and fringe position measurement on the interferogram is discussed.

Citation Download Citation

Markku Koskinen, Jukka Typpo, and Juha Tapio Kostamovaara "High-precision refractometry by hologram interferometry", Proc. SPIE 1633, Laser Radar VII: Advanced Technology for Applications, (1 June 1992); https://doi.org/10.1117/12.59213

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