Acoustically Focused Optical Lens

Abstract

An acoustically-focused optical lens is provided that uses acoustic transducers arranged in diametrically-opposed pairs around an exterior surface of a cylindrical tube to concentrate (heavier-than-water metallic) particles suspended in water within the interior of the tube to be along a central axis of the tube. The transducers are activated in accordance with higher order (and odd order) Bessel functions to create an asymmetric mode to create the central axis node. Distortions in the optical lens can be further reduced by arranging two or more of the tubes in series with their central axes aligned.

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Document Details

Document Type
Technical Report
Publication Date
Jan 05, 2010
Accession Number
ADD020432

Entities

People

  • Anthony A. Ruffa

Organizations

  • Naval Undersea Warfare Center

Tags

DTIC Thesaurus Topics

  • Acoustic Waves
  • Bessel Functions
  • Crystal Lattice Vibrations
  • Differential Equations
  • Distortion
  • Equations
  • Inventions
  • Lenses
  • Optical Lenses
  • Partial Differential Equations
  • Particles
  • Refraction
  • Refractive Index
  • Transducers
  • Ultrasounds
  • Wave Equations
  • Waves

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Optical Fiber Sensing and Electromagnetic Propagation.