Accession Number:

ADA295658

Title:

Optical Phase Conjugation, Beam Coupling, and Effects of Color Centers in Photorefractive Crystals.

Descriptive Note:

Final rept. 16 July 90-30 Nov 94,

Corporate Author:

ALABAMA A AND M UNIV NORMAL DEPT OF PHYSICS

Personal Author(s):

• Venkateswarlu, Putcha
• Moghbel, Mehdi
• Sastry, Medury D.
• Curley, Michael

Report Date:

1994-12-01

Pagination or Media Count:

185.0

Abstract:

This effort was a research program to investigate the coherent and incoherent nonlinear optical properties as a function of color centers. The investigation included multiwave mixing four wave mixing and phase conjugation, spectral, and electron paramagnetic resonance properties of gamma-ray induced color centers. Investigations on BaTiO3 include EPR measurement parametric dependence of energy transfer for two coherent beams, influence of Fe and Cu impurities on the origin of photorefractive effects, resonance phase conjugation, and other beam coupling. SBN and BSO were studied. MM

Descriptors:

• *OPTICAL PROPERTIES
• *NONLINEAR OPTICS
• *PHOTOREFRACTIVE MATERIALS
• COUPLING(INTERACTION)
• SINGLE CRYSTALS
• ENERGY TRANSFER
• CRYSTALS
• ILLUMINATION
• FOUR WAVE MIXING
• IMPURITIES
• IRON
• GRATINGS(SPECTRA)
• COPPER
• ELECTROMAGNETIC RADIATION
• RESONANCE
• GAMMA RAYS
• DOPING
• REFRACTION
• BARIUM TITANATES
• HELIUM NEON LASERS
• CRYSTAL GROWTH
• ELECTRON PARAMAGNETIC RESONANCE
• COLOR CENTERS

Subject Categories:

• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE