Partial Differential Rate Equations for a BiLevel Absorber,

Abstract

The interaction of a directed beam of radiation with an absorber is described using a two level model; transmitted light intensities and level populations are treated as functions of temporal and spatial independent variables; and the general rate equations are given as partial differential equations. Additionally, combinations of material constants are identified as scale parameters and used to express the rate equations in nondimensional form as a hyperbolic partial differential equation in cononical form. One integration yields a time-independent relationship between two transmitted beam intensities at different wavelengths. Also described are several calibration experiments to evaluate material parameters. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA048601

Entities

People

  • B. J. Pernick

Organizations

  • Grumman

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Computer Programs
  • Crystal Structure
  • Differential Equations
  • Energy Levels
  • Equations
  • Experimental Data
  • Geometry
  • Laser Beams
  • Lasers
  • Materials
  • Numerical Integration
  • Partial Differential Equations
  • Photochromic Materials
  • Radiation
  • Steady State

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.
  • Regression Analysis.