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. During the reporting period we have: (1) demonstrated that atomic vapors require fewer photons to perform optical wave mixing that any other medium examined to date; (2) sowed theoretically that a one-joule broadband optical pulse, whose carrier wavelength is one micron, can impart nearly one GeV energy to a charged particle; (3) established the stringent experimental upper limits on the hyperpolarizabilities of C60 and C70 molecules in solution; (4) made the first direct time-of-flight measurements of the drift velocity of photoexcited carrier in any photorefractive insulator (n- type Bi12SiO2O); (5) determined the difference between the complex polarizabilities of different trap levels in insulators; (6) made quantitative predictions and measurements of spatial harmonic content of photorefractive gratings; (7) developed and applied moving-grating diagnostic techniques to photoexcited carriers; (8) demonstrated an exception to the law of exponential attenuation of weak monochromatic optical beams in a homogeneous medium. Optical beam phase conjugation, Nonlinear effects, High power optical beam propagation, Photorefractive effect.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 30, 1994
- Accession Number
- ADA278389
Entities
People
- Robert W. Hellwarth
Organizations
- University of Southern California