Observation of OH Radicals in a Filament-Assisted Diamond Growth Environment

Abstract

The first observations of the hydroxyl radical in a hot filament assisted diamond growth environment are presented. Laser-induced fluorescence (LIF) is used to make in situ, nonintrusive, measurements of the spatial distribution of OH concentration near the filament as a function of feedstock composition, reactor pressure, and filament temperature. LIF measurements of the OH rotational level population distribution are used to determine spatially resolved gas temperature.... Optical diagnostics, Laser-induced fluorescence process control.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1991
Accession Number
ADA264602

Entities

People

  • David R. Crosley
  • Jay. B. Jeffries
  • Lukas E. Hunziker
  • Ulrich E. Meier

Organizations

  • SRI International

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Classification
  • Demography
  • Environment
  • Filaments
  • Fluorescence
  • Hydroxyl Radical
  • Laser Induced Fluorescence
  • Lasers
  • Measurement
  • Military Research
  • Molecular Physics
  • Observation
  • Physics Laboratories
  • Security
  • Spatial Distribution

Fields of Study

  • Physics

Readers

  • Marine Ecotoxicology
  • Pulsed Power and Plasma Physics.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy