Growth of KTN Single Crystals

Abstract

KTN is a single crystal ferroelectric of composition KTa(0.65)Nb(0. 35)O3. KTN has a curie point near room temperature and exhibits a large quadratic electrooptic, i.e., Kerr effect. KTN is useful as a light beam modulator and deflector, microwave modulator, optical polarization switch, variable delay line, and parametric amplifier. Crystals as large as 50mm x 50mm x 10mm were grown. The crystals were pale blue when grown in Pt-3.5Rh crucibles and colorless when grown in Pt crucibles. Oxygen, air, or argon atmospheres had no significant effect on the crystal color. KTN grown in this study contained large clear areas and were reproducible in quality, but still suffered from flux inclusions and striations.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1973
Accession Number
AD0764902

Entities

People

  • Jack A. Rubin

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Amplifiers
  • Crucibles
  • Crystal Growth
  • Crystals
  • Curie Temperature
  • Deflectors
  • Delay Lines
  • Electro-Optic Modulators
  • Inclusions
  • Isotherms
  • Materials
  • Phase Diagrams
  • Polarization
  • Single Crystals
  • Solid Solutions
  • Steady State

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.