INTERFERENTIAL SPECTROMETRY THROUGH AMPLITUDE MODULATION (SPECTROMETRE INTERFERENTIEL A SELECTION PAR L'AMPLITUDE DE MODULATION),

Abstract

The paper combines two previous communications of the author and describes a new spectrometric method specifically adapted to the infrared. By replacing the two mirrors of the Michelson interferometer by two gratings having the same incidence and by linear variation as a function of time of the path difference between the two beams, it is possible to modulate, in a complex spectrum, a single element of width equal to the theoretical resolution limit of the grating. The solid angle of the effective beam is much larger than in a standard spectrometer so that the method furnishes a large increase of luminosity. The design and construction of prototype and the first findings with it are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1967
Accession Number
AD0809087

Entities

People

  • P. Connes

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Amplitude Modulation
  • Construction
  • Instrumentation
  • Interferometers
  • Luminosity
  • Measuring Instruments
  • Michelson Interferometers
  • Modulation
  • Prototypes
  • Spectra
  • Spectrometers
  • Spectrometry
  • Standards

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Optical Physics and Photonics.
  • Spectroscopy.