Far- and Mid-Infrared Properties of Metal-Insulator Composite Materials.

Abstract

Construction of the far infrared Fourier transform spectrometer was completed so that attention could now be focussed on experiments. Among the highlights are: *SPECAC Interferometer -Design and construction of mylar beamsplitters, which can be used in place of the supplied free-standing wire grids to extend the high frequency cutoff of the instrument from 200/cm to at least 350/cm. -Design and construction of an output focussing mirror to replace the supplied TPX lens. Use of the mirror increases the throughput of the interferometer, especially at high frequencies. -Design and construction of an optical chopper to modulate the Hg arc source for use with lock-in detection. The chopper can be used rather than phase modulation (vibrating the fixed mirror of the interferometer). Both methods have advantages and drawbacks, so it is desirable to have both.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1987
Accession Number
ADA193227

Entities

People

  • Robert P. Devaty

Organizations

  • University of Pittsburgh

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Composite Materials
  • Cyclotron Resonance
  • Dielectrics
  • Electromagnetic Radiation
  • Electron Microscopy
  • Films
  • Frequency
  • Infrared Radiation
  • Long Wavelengths
  • Magnetic Dipoles
  • Magnetic Fields
  • Materials
  • Materials Science
  • Optical Properties
  • Quasiparticles
  • Scattering

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.
  • Software Engineering
  • Thin Film Deposition Science.

Technology Areas

  • Microelectronics