Development of Growth Techniques for Electromagnetic Crystals.

Abstract

Techniques were developed for growth of single crystal fibers using a laser pedestal heating system. Oriented growth of refractory fibers was demonstrated for oxides, semi-conductors, and some metals. Since no crucible is used to contain the feed material, and only the tip of the pedestal material is melted, purity control is excellent. Controlled atmosphere growth and the design of retroreflectors to optimize laser power were investigation. This type of laser heated pedestal system appears to be appropriate for almost any material which does not have an excessively high vapor pressure at the melting point. Difficulties in growing refractory metals should be surmounted by using higher laser powers. Keywords include: Crystal growth; Laser heating fibers, and Pedestal heating.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1985
Accession Number
ADA154089

Entities

People

  • R. K. Route
  • Robert S. Feigelson
  • W. Kway

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Control Systems
  • Crystals
  • Heat Energy
  • Latent Heat
  • Material Degradation Processes
  • Materials
  • Materials Processing
  • Materials Science
  • Melting Point
  • Optical Properties
  • Optics
  • Phase Diagrams
  • Phase Transformations
  • Piezoceramics
  • Refractory Metals
  • Single Crystals

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Directed Energy