"optical" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- Initially, the carrier temperature decreases fast via emission of optical phonons.
- This creates a non-equilibrium "over-population" of optical phonons and thus causes their increased reabsorption by the charge-carriers significantly suppressing any cooling.
- The model developed in this paper is macroscopic and based on electrostatic coupling of an electron to polar optical phonons.
- Phonons on the band that cross the origin are known as acoustic phonons, the others as optical phonons.
- Non-polar optical phonons must generally be considered in covalent semiconductors and the L-valley of GaAs.
- Scattering of electrons by optical phonons in carbon nanotube channels has two requirements:
- The dominant scattering mechanism at room temperature is that of electrons emitting optical phonons.
- However, optical phonons have a short life-time (they split into two due to anharmonicity) and therefore they add some important complications.
- At high electric fields, drift velocity saturates due to scattering from optical phonons.
- Indium phosphide also has one of the longest-lived optical phonons of any compound with the zincblende crystal structure.
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