Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"phonon detector"”.
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A search for a new phonon detector
… in the development of a tunable monochromatic phonon detector for use in experiments investigating the transmission of phonons (v > 10 GHz) through 4He at T S 0.1 K and 0 < P < 24 bars is described. The technique studied was the use of a magnetically tuned spin 1/2 system whose change in …
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Dispersive phonon imaging in III-V semiconductors
… transport properties of high-frequency acoustic phonons are investigated in GaAs, InSb, InP and InAs using the phonon-imaging technique. In this method, a focused laser beam provides a movable heat source on one side of a cooled crystal (~ 2 K). A single small phonon detector on the opposite face …
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Phonon Spectroscopy and Low-Dimensional Electron Systems
… propagation of pulses of nonequilibrium acoustic phonons and their interaction with semiconductor nanostructures are investigated. Such studies can give unique information about the properties of low-dimensional electron systems, but in order to interpret the experiments and to understand the …