Measuring device using optical beam

Details Measuring device using optical beam Measuring device using optical beam

1990-03-23

1991-09-24

Rosenberger, Richard A.

Optics: measuring and testing

Lamp beam direction or pattern

356358, G01J 100

Patent

active

050509888

ABSTRACT:
A device for measuring ultra-high speed phenomenon by using an optical beam. The ultra-high speed phenomenon can be measured at a high S/N ratio by composing either an object light or a reflected light from an object and a reference light using a polarizer, by generating a secondary higher harmonic from the composed light using a non-linear optical material, and by measuring the optical intensity of the secondary higher harmonic using a light receiving element.

REFERENCES:
patent: 3625619 (1971-12-01), Karl
patent: 4681436 (1987-07-01), Ching et al.
Dynamic Spectroscopy and Subpicosecond Pulse Compression, Applied Physics Letter, vol. 27, No. 9, 1 Nov. 1975, Ippen and Shank.
IOFFE Phys. Tech. Inst., Determination of Refractive Index of Material in the IR Band, 1987, Derwent Publication Ltd.

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