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Article
Ultrasound Amplification by Stimulated Emission of Radiation
Photonics Spectra
  • Alexey Yamilov, Missouri University of Science and Technology
  • Richard L. Weaver
  • Oleg I. Lobkis
Abstract
In his seminal paper1, Albert Einstein introduced the concept of stimulated emission of electromagnetic radiation that led to the invention of masers and lasers. Ever since, there has been a propensity to regard stimulated and spontaneous emission as quantum-mechanical effects. However, these concepts have clear classical (nonquantum) analogues that we demonstrate in experiments with ultrasound. We have designed an electromechanical system consisting of ultrasonic oscillators that emit both spontaneously and by stimulated emission like atoms in an optical laser. The set of nominally independent oscillators lock to each other and produce a high-intensity coherent field. In the absence of stimulated emission, they produce a weak and incoherent field...
Department(s)
Physics
Keywords and Phrases
  • Electromagnetic Radiation,
  • Ultrasound Amplification,
  • Uaser
Library of Congress Subject Headings
Electromagnetic waves
Oscillators, Electric
Ultrasonics
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2006 Laurin Publishing, All rights reserved.
Publication Date
8-1-2006
Disciplines
Citation Information
Alexey Yamilov, Richard L. Weaver and Oleg I. Lobkis. "Ultrasound Amplification by Stimulated Emission of Radiation" Photonics Spectra (2006)
Available at: http://works.bepress.com/alexey-yamilov/8/