Superconductor Acts as Phonon Generator and Detector
APR 01, 1967
DOI: 10.1063/1.3034266
If you excite quasi‐particles in a superconductor, you can generate and detect phonons. Aly Dayem and Wolfgang Eisenmenger, who reported their work in the 23 Jan. issue of Phys. Rev. Letters, have built such a quantum generator and detector of phonons at 300 GHz. The same technique can be used over a large frequency range where conventional generators and detectors become prohibitively difficult. Until now phonons have been generated only piezoelectrically and at much lower frequencies.
© 1967. American Institute of Physics
