@heidrunkempf

Laterally chromatically dispersed, spectrally encoded interferometer

, , , and . Appl. Opt., 50 (23): 4574--4580 (August 2011)
DOI: 10.1364/AO.50.004574

Abstract

We present a single-shot line sensor based on spectral interferometry. Light of a broadband laser source is chromatically dispersed by a grating and focused onto a line on the surface such that each focal point on this line is formed by another wavelength. The entire height profile is obtained by applying a phase evaluation algorithm to the registered interference signal, followed by a model-based approach. The sensor concept is finally verified by experimental results.

Links and resources

Tags