Asynchronous Optical Sampling for Laser-Based Combustion Diagnostics in High Pressure Flames.

Abstract

This report describes progress on the development of a new laser based combustion diagnostic for the quantitative measurement of both major and minor species in high pressure flames. The technique, Asynchronous Optical Sampling (ASOPS), is a state-of-the-art improvement in picosecond pump/probe spectroscopy. The timing parameters for the current ASOPS instrument are described and consideration is given to the optimization of these parameters. The first ASOPS measurements in a combustion environment have been made on atomic sodium. These measurements are compared with laser induced fluorescence measurements to demonstrate the viability of ASOPS as a combustion diagnostic.

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Document Details

Document Type
Technical Report
Publication Date
Jan 20, 1988
Accession Number
ADA192920

Entities

People

  • Fred E. Lytle
  • Galen B. King
  • Normand M. Laurendeau

Organizations

  • Purdue University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Chemistry
  • Detection
  • Dye Lasers
  • Engineering
  • Fluorescence
  • Frequency
  • Ground State
  • High Pressure
  • Laser Applications
  • Laser Beams
  • Laser Induced Fluorescence
  • Lasers
  • Liquid Dye Lasers
  • Measurement
  • Mechanical Engineering
  • Sampling
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Integrated Circuit Design and Technology.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers