Two classes of scalar, stochastic sources are introduced, each capable of producing far fields with intensities forming rings. Although the Bessel–Gaussian and the Laguerre–Gaussian Schell-model sources are described by two different math models, the behavior of their degrees of coherence and, hence, the shapes of their far fields are qualitatively similar. The new beams are of importance for optical methods of particle manipulation.
© 2013 Optical Society of America
Coherence and Statistical Optics
Original Manuscript: October 25, 2012
Manuscript Accepted: November 9, 2012
Published: January 7, 2013
Zhangrong Mei and Olga Korotkova, "Random sources generating ring-shaped beams," Opt. Lett. 38, 91-93 (2013)