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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 64, Iss. 9 — Sep. 1, 1974
  • pp: 1211–1214

Supersaturation: Effect of a high-frequency cutoff on strong optical-scintillation measurements

H. T. Yura  »View Author Affiliations


JOSA, Vol. 64, Issue 9, pp. 1211-1214 (1974)
http://dx.doi.org/10.1364/JOSA.64.001211


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Abstract

An expression is derived for the apparent log-amplitude variance that would result experimentally from the use of a high-frequency cutoff νe in the electronic detection system. It is shown, for the Kolmogorov spectrum and in the saturation regime, that the apparent log-amplitude variance decreases asymptotically as σT-2/5 where σT2 is the log-amplitude variance obtained from the perturbation theory. Furthermore, it is shown that theories that suppress spatial frequencies of the order 1/ρ0(L), where ρ0(L) is the lateral coherence of the wave at propagation distance L, are equivalent to suppressing high temporal frequencies in the time domain. Thus, such theories will result in a predicted log-amplitude variance that decreases asymptotically with increasing values of σT2.

Citation
H. T. Yura, "Supersaturation: Effect of a high-frequency cutoff on strong optical-scintillation measurements," J. Opt. Soc. Am. 64, 1211-1214 (1974)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-64-9-1211

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