Abstract

We consider how the coherence of the observed field is affected by propagation when a nonabsorbing phase screen is moved at constant velocity in front of an aperture illuminated by quasi-monochromatic plane-wave illumination. It is shown that when the rms value of the profile is not too large, there is always a component of transmitted light whose temporal coherence is unaffected by the motion of the phase screen. Closed-form expressions for the temporal coherence of the observed field are obtained for the following cases: (1) a point aperture, (2) the Fraunhofer region, and (3) limiting cases of Fresnel diffraction for relatively large- and small-grain scatterers. Numerical results are presented.

© 1985 Optical Society of America

Temporal-coherence effects of a moving phase screen illuminated by spatially coherent quasi-monochromatic light: Comment on the correlation extent of the phase function exp(iϕ)

Nobukatsu Takai
J. Opt. Soc. Am. A 3(4) 452-453 (1986)

Temporal-coherence effects of a moving phase screen illuminated by spatially coherent quasi-monochromatic light: Comment on the correlation extent of the phase function exp(iϕ)—A Reply

H. Stark and Y. Fainman
J. Opt. Soc. Am. A 3(4) 454-454 (1986)

Imaging of an object behind a random phase screen using light of arbitrary coherence

Ronald L. Fante
J. Opt. Soc. Am. A 2(12) 2318-2329 (1985)

Statistical properties of laser speckles produced under illumination from a multimode optical fiber

Nobukatsu Takai and Toshimitsu Asakura
J. Opt. Soc. Am. A 2(8) 1282-1290 (1985)

Non-Gaussian speckle caused by thin phase screens of large root-mean-square phase variations and long single-scale autocorrelations

Bruce Martin Levine
J. Opt. Soc. Am. A 3(8) 1283-1292 (1986)