Search
Menu
Gentec Electro-Optics Inc   - Measure With Gentec Accuracy LB

Ultrasound Amplification by Stimulated Emission of Radiation

Facebook X LinkedIn Email
The uaser (pronounced WAY-zer), which produces coherent ultrasonic waves, could be used to study lasers and to detect subtle changes in modern materials.

Alexey G. Yamilov, University of Missouri-Rolla, and Richard L. Weaver and Oleg I. Lobkis, University of Illinois at Urbana-Champaign

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...Read full article

Related content from Photonics Media



    Articles


    Products


    Photonics Handbook Articles


    White Papers


    Webinars


    Photonics Dictionary Terms


    Media


    Photonics Buyers' Guide Categories


    Companies
    Published: August 2006
    Glossary
    electromagnetic radiation
    Radiation emitted from vibrating charged particles. A combination of oscillating electrical and magnetic fields that propagates through otherwise empty space with the velocity of light. This constant velocity equals the alternation frequency multiplied by the wavelength; hence, the frequency and wavelength are inversely proportional to each other. The spectrum of electromagnetic radiation is continuous over all frequencies.
    Basic Scienceelectromagnetic radiationFeaturesmasersLasers

    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.