Power coupled between partially coherent vector fields in different states of coherence

Details Power coupled between partially coherent vector fields in different states of coherence Power coupled between partially coherent vector fields in different states of coherence

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001josaa..18.3061w&link_type=abstract

Optical Society of America Journal, Volume 18, Issue 12, pp. 3061-3071 (2001).

Astronomy and Astrophysics

Astronomy

8

Submillimetre Astronomy, Coherence, Optical Design Techniques, Vectors, Matrix Algebra, Astronomical Instruments

Scientific paper

A procedure is described for calculating the power coupled between collimated, partially coherent vector fields that are in different states of coherence. This topic is of considerable importance in designing submillimeter-wave optical systems for astronomy. It is shown that if the incoming field S has coherence matrix A, and the outgoing field D has coherence matrix B, then the power coupled is simply Ps=Tr(ATBT†), where the elements of T project the basis functions of B onto those of A. A similar technique can be used to calculate the power coupled from the background of S to D. The scheme is illustrated by calculating the power coupled between two scalar, Gaussian Schell-model beams. The procedure can be incorporated into optical design software.

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