Two Applications of Microwave Acoustics in Liquid Helium: High Resolution Microscopy and Direct Measurement of Phonon Dispersion

  • D. Rugar
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 51)


During the past three years, ultrasonic techniques have been developed at Stanford University for efficient generation and detection of multi-gigahertz sound waves in liquid helium. This paper discusses two applications of these techniques: high resolution acoustic microscopy and direct measurement of low energy phonon dispersion. We begin with acoustic microscopy.


Liquid Helium Phonon Dispersion Coupling Fluid Acoustic Microscopy Coherent Phonon 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1984

Authors and Affiliations

  • D. Rugar
    • 1
  1. 1.Department of Applied Physics, Edward L. Ginzton LaboratoryStanford UniversityStanfordUSA

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