Related Experiment Video
Updated: Jun 20, 2026
08:57
Optical Trap Loading of Dielectric Microparticles In Air
Published on: February 5, 2017
Measuring photorefractive trap density without the electro-optic effect
R M Pierce1, R S Cudney, G D Bacher
1Department of Physics, University of Southern California, University Park, Los Angeles, California 90089-0484, USA.
Optics Letters
|September 22, 2009
Abstract:
Two optical beams can couple in a photorefractive crystal without using the electro-optic effect. Beam coupling is due to a spatially modulated absorption caused by the rearrangement of trapped charges. We use these gratings to determine the effective photorefractive trap density for several barium titanate crystals.
