Study of Water Vapor Absorption Lines in the Near Infrared

Abstract

The purpose of this work was to develop a highly stable spin flip Raman laser that could be tuned through the 5 micron region in order to study water vapor absorption lines. The pressure broadening coefficients for various buffer gases when added to water was measured with this system. A general technique was devised to measure the shape of absorption lines well out onto the wings to determine if there were any deviation from a Lorentzian lineshape. In addition, theoretical work was done on the interaction of a radiation field with molecules undergoing a collision. A formulation was developed and used to treat the case of a collision between two noble gases.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 30, 1976
Accession Number
ADA034440

Entities

People

  • Ali Javan

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Absorption
  • Coefficients
  • Collisions
  • Electromagnetic Radiation
  • Lasers
  • Molecules
  • Noble Gases
  • Radiation
  • Raman Lasers
  • Vapors
  • Water Vapor

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Materials Science and Engineering.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers