@inproceedings{bc79b8d1c8dc4d148a673c1b6e2b48cd,
title = "Experimental observation of speckle transition",
abstract = "In isotropic random optical waves, each dark area may contain optical vortices or phase singularities. In this paper, we experimentally generate a speckle pattern and observe its transition along the propagation direction. Experimental results show that the vortex density changes along the propagation direction when the continuous phase part of the speckle field is removed with a spatial light modulator. The contrast ratio of the spackle field also changes due to the transition of the field. Such a transition can be interpreted to a certain extent by the self-annihilation of vortex dipoles due to the least-squares phase removal.",
keywords = "Least-squares phase, Optical vortices, Random optical field, Speckle pattern",
author = "Mingzhou Chen and Chris Dainty",
year = "2012",
doi = "10.1117/12.978222",
language = "English",
isbn = "9780819490919",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Speckle 2012",
note = "5th International Conference on Speckle Metrology, Speckle 2012 ; Conference date: 10-09-2012 Through 12-09-2012",
}