Studies of Optical Beam Phase-Conjugation and Electromagnetic Scattering Process
Abstract
In this project we have performed both experimental and theoretical studies of optical beam phase-conjugation and of electromagnetic scattering and propagation with intense optical fields. We have: (1) made measurements of high- power four-wave mixing in many new polymers synthesized at USC to characterize their nonlinear optical properties; (2) made what we believe is the first observation of nonexponential attenuation of a weak optical beam in a homogeneous (highly scattering) medium; (3) achieved the first time-offlight measurements of electron drift velocities in photorefractive insulating crystals, finding trap-limited room temperature mobilities approx, 0.2 sq cm V(to the -1) s(to the -1) and conduction band mobilities over an order of magnitude larger, also at room temperature; and (4) achieved the first low energy (approx. picojoule) optical logic gates in resonant atomic vapors.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 05, 1992
- Accession Number
- ADA251963
Entities
People
- Robert W. Hellwarth
Organizations
- University of Southern California