STUDY OF ACTIVE PROBING OF WATER VAPOR PROFILES AND RESULTS OF EXPERIMENTS.

Abstract

A ruby laser system has been assembled which includes provision for thermally tuning the laser operating wavelength. Experiments have been carried out which were designed to test the potential of such a radar for the remote determination of the vertical profile of water vapor by means of a spectral study of the back scattered energy. The results of the experiments indicate that such measurements are feasible. However, detailed information must be obtained on the water vapor absorption line structure. A theoretical study has been undertaken of the contribution of secondary molecular scattering to the return observed by a laser optical radar. The results are presented as a function of the beam width of the receiver optics and the wavelength of the laser. It is shown that the contribution of secondary scatter to the observed energy can be made negligibly small by suitably restricting the beam width of the receiver optics. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1965
Accession Number
AD0623513

Entities

People

  • David Chang
  • J. Bradley
  • R. M. Schotland

Organizations

  • New York University

Tags

DTIC Thesaurus Topics

  • Absorption
  • Laser Applications
  • Laser Radar
  • Lasers
  • Measurement
  • Optical Equipment
  • Ruby Lasers
  • Scattering
  • Vapors
  • Water Vapor

Fields of Study

  • Physics

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Pulsed Power and Plasma Physics.
  • Radar Systems Engineering.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers