We established an experimental setup for generating partially coherent beams with different complex degrees of coherence, and we report experimental generation of an elliptical Gaussian Schell-model (GSM) beam and a Laguerre-GSM beam for the first time. It has been demonstrated experimentally that an elliptical GSM beam and a Laguerre-GSM beam produce an elliptical beam spot and a dark hollow beam spot in the focal plane (or in the far field), respectively, which agrees with theoretical predictions. Our results are useful for beam shaping and particle trapping.
© 2013 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: February 25, 2013
Revised Manuscript: April 10, 2013
Manuscript Accepted: April 23, 2013
Published: May 21, 2013
Fei Wang, Xianlong Liu, Yangsheng Yuan, and Yangjian Cai, "Experimental generation of partially coherent beams with different complex degrees of coherence," Opt. Lett. 38, 1814-1816 (2013)