Abstract
Digitally controllable Gaussian speckle fields were experimentally generated by implementing binary diffusers and synthetic pupils on a liquid crystal spatial light modulator. The synthetic pupil comprises a Ronchi phase mask and a proper filtering of its diffraction orders. The binary diffuser is displayed inside an aperture defined onto the Ronchi phase mask. We demonstrated that this implementation replaces the need of using a ground glass and a physical pupil. In this way, the average speckle size, the statistical independence among the generated speckle patterns, and the average intensity distribution can be dynamically controlled.
© 2015 Optical Society of America
Full Article | PDF ArticleMore Like This
Hideki Funamizu and Jun Uozumi
Opt. Express 15(12) 7415-7422 (2007)
Luciano Angel, Myrian Tebaldi, Néstor Bolognini, and Marcelo Trivi
J. Opt. Soc. Am. A 17(1) 107-119 (2000)
J. Bulabois, M. E. Guillaume, and J. Ch. Viénot
Appl. Opt. 12(7) 1686-1692 (1973)