Spinel as Exit Aperture Window for HEL Systems

Abstract

Spinel is an excellent candidate for HEL windows. Significantly better than glass materials: 3x stronger and harder, 10x higher thermal conductivity, significantly better thermal shock resistance, OPD is comparable to OFG and better Silica, significantly superior environmental ruggedness. Successfully developed rugged, low-loss AR coatings for Spinel. Demonstrated fabrication of a large Spinel window. Availability of high optical quality AR coated Spinel windows will have a significant impact on all DoD solid state Directed Energy Weapons Systems operating in harsh environments.

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Document Details

Document Type
Technical Report
Publication Date
Nov 17, 2008
Accession Number
ADA494870

Entities

People

  • Al Ogolza
  • David Reicher
  • Guillermo Villaiobos
  • Ishwar Aggarwal
  • Jasbinder Sanghera
  • Shyam Bayya
  • Stan Peplinski
  • Woohong Kim

Organizations

  • Naval Air Warfare Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Antireflection Coatings
  • Coatings
  • Conductivity
  • Directed Energy Weapons
  • Fabrication
  • Grain Size
  • Materials
  • Military Research
  • Modulus Of Elasticity
  • Optical Materials
  • Refractive Index
  • Resistance
  • Shock Resistance
  • Surface Roughness
  • Thermal Conductivity
  • Thermal Shock

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Surface Engineering/Surface Coating Technology.

Technology Areas

  • Directed Energy