Twisted speckle entities inside wave-front reversal mirrors
Abstract
The previously unknown property of the optical speckle pattern reported. The interference of a speckle with the counterpropagating phase-conjugated (PC) speckle wave produces a randomly distributed ensemble of a twisted entities (ropes) surrounding optical vortex lines. These entities appear in a wide range of a randomly chosen speckle parameters inside the phase-conjugating mirrors regardless to an internal physical mechanism of the wave-front reversal. These numerically generated interference patterns are relevant to the Brillouin PC mirrors and to a four-wave mixing PC mirrors based upon laser trapped ultracold atomic cloud.
- Publication:
-
Physical Review A
- Pub Date:
- July 2009
- DOI:
- arXiv:
- arXiv:0903.0057
- Bibcode:
- 2009PhRvA..80a3837O
- Keywords:
-
- 42.30.Ms;
- 42.50.Tx;
- 42.65.Hw;
- 42.65.Es;
- Speckle and moire patterns;
- Optical angular momentum and its quantum aspects;
- Phase conjugation;
- photorefractive and Kerr effects;
- Stimulated Brillouin and Rayleigh scattering;
- Nonlinear Sciences - Pattern Formation and Solitons;
- Condensed Matter - Quantum Gases;
- Physics - Atomic Physics;
- Physics - Optics;
- Quantum Physics
- E-Print:
- 4 pages,3 figures, Accepted to Physical Review A