optical phonon

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.

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References in periodicals archive ?

These signals can be assigned to the fundamental longitudinal optical phonon mode [E.sub.1](LO) and its first overtone mode (2LO), respectively [28, 29].

Copper Incorporation into CdS Thin Films by Ionic Exchange in an Aqueous Solution Process at Room Temperature

Processes (0) and (0') are transitions that do not require a phonon, whereas processes (1) and ([1.sup.[dagger]]) require an optical phonon. Similarly, (n) and ([n.sup.[dagger]]) are transitions involving n optical phonons (n = 2,3,4,...).

Emission spectral control of a silicon light emitting diode fabricated by dressed-photon-phonon assisted annealing using a short pulse pair

Wasilewski, "Optical phonons in [Al.sub.x][Ga.sub.1 - x]As: raman spectroscopy," Physical Review B: Condensed Matter and Materials Physics, vol.

Structural and optical investigations of heterostructures based on [Al.sub.x][Ga.sub.1 - x][As.sub.y]: Si solid solutions obtained by MOCVD

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.

Temperature and doping dependencies of hot electron transport properties in bulk GaP, InP and [Ga.sub.0.5][In.sub.0.5]P

The corresponding average optical phonon energy is given within the present formalism (due to (21)) just by the fourth discrete oscillator; that is, [[bar.[epsilon]].sub.U] = [[bar.[epsilon]].sub.TO&LO] = [[epsilon].sub.4].

Unprecedented Integral-Free Debye Temperature Formulas: Sample Applications to Heat Capacities of ZnSe and ZnTe

In short-period superlattice, the large gaps between acoustic and optical phonon branches make the scattering rarely happen and thus lead to high thermal conductivity, even higher than its corresponding pure materials.

Prediction of spectral phonon mean free path and thermal conductivity with applications to thermoelectrics and thermal management: a review

Choi, "Derivation of linewidths for optical transitions in quantum wells due to longitudinal optical phonon scattering," Journal of Physics Condensed Matter, vol.

Derivation of line shape function in the optical conductivity by a new diagram method

George, "Optical phonon confinement in ZnO nanorods and nanotubes," Indian Journal of Pure and Applied Physics, vol.

Vibrational order, structural properties, and optical gap of ZnO nanostructures sintered through thermal decomposition

On the other hand, vibration with frequencies corresponding to optical phonon modes in various materials has been observed by pump-probe spectroscopy.

Understanding multiferroic hexagonal manganites by static and ultrafast optical spectroscopy

In our previous work, the carrier escape and capture processes between the unconfined bulk states and the confined quantum states have been calculated from the first principle by evaluating the carrier-polar optical phonon interactions, and the details of their physical meaning have been discussed and will not be repeated here for simplicity.

Theoretical study of the effects of carrier transport, capture, and escape processes on solar cells with embedded nanostructures

They show a dominant peak of typical characteristic of the wurtzite ZnO structure at 439 [cm.sup.-1], assigned to be the optical phonon E2H mode.

Photoluminescence of hexagonal ZnO nanorods hydrothermally grown on Zn foils in KOH solutions with different values of Basicity

There are nine zone-center optical phonon modes with symmetries 4[A.sub.u] + 5[B.sub.u] + [A.sub.g] + 2[B.sub.g]; only three [A.sub.g] + 2[B.sub.g] modes are Raman active.

CuO and [Co.sub.3][O.sub.4] nanoparticles: synthesis, characterizations, and Raman spectroscopy