optical phonon


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Related to optical phonon: Lattice vibration

optical phonon

[′äp·tə·kəl ′fō‚nän]
(solid-state physics)
A quantum of an optical mode of vibration of a crystal lattice.
References in periodicals archive ?
The decrease in drift mobility with temperature at low fields is due to increased intra-valley polar optical phonon scattering whereas the decrease in velocity at higher fields is due to increased intra and inter valley scattering.
The thermal recovery processes in ion exchanged cobalt samples of zeolites were occurred at about 550K to adjust Brillouin zones, with the exception of Co4A sample in which optical phonons were generated and became free, whereas in the remaining samples, the acoustical phonons were quantized in Brillouin zones.
Raman scattering distributed temperature sensors, that use the temperature dependence of inelastic scattering on optical phonons,
6 THz) Raman scattering (called Stokes scattering) is associated with optical phonons in silicon.

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