The scintillation index of a Gaussian Schell-model beam with twist phase (i.e., twisted GSM beam) in weak turbulent atmosphere is formulated with the help of a tensor method. Variations of the scintillation index of a twisted GSM beam on propagation in turbulent atmosphere are studied in detail. It is interesting to find that the scintillation index of a twisted GSM beam can be smaller than that without twist phase in weak turbulent atmosphere. Thus, modulation of the twist phase of a partially coherent beam provides a new way to reduce turbulence-induced scintillation.
© 2012 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: September 22, 2011
Revised Manuscript: November 22, 2011
Manuscript Accepted: November 22, 2011
Published: January 12, 2012
Fei Wang, Yangjian Cai, Halil T. Eyyuboğlu, and Yahya Baykal, "Twist phase-induced reduction in scintillation of a partially coherent beam in turbulent atmosphere," Opt. Lett. 37, 184-186 (2012)