OPTICAL LATTICE MODES OF MIXED POLAR CRYSTALS.

Abstract

An analysis of the available infrared and Raman spectra for mixed crystals suggests that two mode behavior occurs in situations where localized modes and gap modes are possible in the end members. If neither gap nor localized modes are possible, then one mode behavior results. Furthermore one mode behavior generally occurs when there is frequency overlap between the restrahlen bands of the end members. However, the lack of frequency overlap is not necessarily associated with two mode behavior. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1968
Accession Number
AD0667609

Entities

People

  • E. Burnstein
  • G. Lucovsky
  • Michael Brodsky

Organizations

  • University of Pennsylvania

Tags

DTIC Thesaurus Topics

  • Cooperation
  • Crystal Lattices
  • Crystal Structure
  • Diffraction
  • Electromagnetic Spectra
  • Frequency
  • Night Vision
  • Optical Lattices
  • Psychological Phenomena And Processes
  • Psychology
  • Raman Spectra
  • Spectra
  • Wave Phenomena

Readers

  • Materials Science and Engineering.
  • Spectroscopy.
  • Wave Propagation and Nonlinear Chaotic Dynamics.