Increasing the Throughput of Hadamard Spectrometers by the Use of Curved Slots,

Abstract

This report proves that the optical throughput of Hadamard spectrometers can be significantly increased by using curved rather than straight slots. The slot curvature for a representative Hadamard spectrometer is optimized. For this Hadamard spectrometer the throughput is increased by a factor of ten by using optimally curved slots instead of straight slots. Analytic and ray-tracing methods are used to optimize the slot curvature. Experimental measurements with both straight and optimally curved slots are given for comparison. Ammonia absorption spectra taken in the 9 to 13-micrometers wavelength interval using 20-mm tall curved slots are given. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 22, 1978
Accession Number
ADA064198

Entities

People

  • Doran J. Baker
  • George A. Vanasse
  • Ronald J. Huppi
  • Roy W. Esplin

Organizations

  • Utah State University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Absorption Spectra
  • Algorithms
  • Coding
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Diffraction
  • Distortion
  • Fresnel Zones
  • Geometry
  • Jet Propulsion
  • Measurement
  • Military Research
  • Plastic Explosives
  • Refraction
  • Spectra
  • Two Dimensional

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Forest Ecology
  • Systems Analysis and Design