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Proceedings Paper

Studying time-dependent optical signals via registering the spectrum doubled with shift in spectral plane
Author(s): V. A. Zubov; S. G. Rautian
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Paper Abstract

A solution to the phase problem in optics is considered within the context of the analysis of time-dependent signals. The analysis concerns, in particular, determination of amplitude and phase structure of signals and processes of ultrashort duration. The operation of the scheme is based on the registration of two spectra of the investigated radiation separated spatially. The first spectrum corresponds to the signal directly, while the other one is formed by summation of two spectra shifted geometrically with respect to each other by a distance of the order of the spectral device resolution. The description of the summarized spectrum contains the frequency derivative. The information obtained allows one to determine the amplitude and phase structure of the signal.

Paper Details

Date Published: 10 June 2006
PDF: 10 pages
Proc. SPIE 6262, Optical Methods of Flow Investigation, 62620C (10 June 2006); doi: 10.1117/12.683014
Show Author Affiliations
V. A. Zubov, P.N. Lebedev Physical Institute (Russia)
S. G. Rautian, P.N. Lebedev Physical Institute (Russia)


Published in SPIE Proceedings Vol. 6262:
Optical Methods of Flow Investigation
Yuri N. Dubnistchev; Bronyus S. Rinkevichyus, Editor(s)

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