optical phonon


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Related to optical phonon: Lattice vibration

optical phonon

n.
A phonon arising in crystal lattice structures that have more than one atom per lattice point and are typically easily excited by light.
References in periodicals archive ?
This is an interesting special case because the 13s>12p transition in Cs is almost resonant with an optical phonon in CdTe.
He said that this was the first time a soft optical phonon has ever been linked to mechanical failure and that therefore it is likely that this novel failure mechanism is not exclusive to graphene but may be prevalent in other very thin materials.
At higher electric field, inter-valley optical phonon emission dominates causing the drift velocity to saturate at around 0.
Below 485 K, the optical phonons and at 540K, the acoustical phonons were produced and both were quantized in Brillouin zones.
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