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Updated: Aug 13, 2026

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
Published on: December 3, 2013
Theory of partial coherence for weakly periodic media
Bernhard J Hoenders1, Mario Bertolotti
1University of Groningen, Institute for Theoretical Physics and Materials Science Centre, Nijenborgh 4, NL-9747 AG Groningen, The Netherlands. b.j.hoenders@rug.nl
Abstract:
The second-order theory of partial coherence for scalar and TE or TM fields is developed for weakly periodic media, and the van Cittert-Zernike theorem of classical coherence theory is generalized for such media. The coherence properties of a wave field, generated by a quasi-homogeneous source distribution at the entrance plane of a finite weakly periodic medium, are calculated both inside such a structure and in the far field. The second-order theory of partial coherence for pulse propagation through weakly periodic media is also developed.
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