Laser Interactions with Single Droplets.

Abstract

Final report on past three and a quarter years of ARO support in two research areas: (1) nonlinear optical effects with single droplets, that act as high Q optical cavities; and (2) detection of bio- and nonbio-airborne particles. Research accomplishments in the first area consist of the following: (a) laser induced surface bulge; (b) mode beating among shape-distortion split resonance modes; (c) temporal asymmetry of clockwise and counter-clockwise elastic scattering; (d) model for optical bistability; (e) external versus internal pumping of stimulated Raman scattering; (f) second-harmonic generation from surfactant on hanging droplets, and (g) application of chaos theory to optical cavities. Research accomplishments of the three joint ARL-Yale experiments in bio- and nonbio-airborne particle detection are summarized. In order to optimize data capture and storage, three schemes are discussed: (1) conditional sampling; (2) conditional firing; and (3) conditional storage.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1997
Accession Number
ADA332462

Entities

People

  • Richard K. Chang

Organizations

  • Yale University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amino Acids
  • Argon Lasers
  • Detection
  • Detectors
  • Elastic Scattering
  • Laser Beams
  • Lasers
  • Nonlinear Dynamics
  • Nonlinear Optics
  • Optical Phenomena
  • Optical Properties
  • Optics
  • Physics
  • Raman Scattering
  • Repetition Rate
  • Scattering
  • Spectra

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy