NAGIOS: RODERIC FUNCIONANDO

Strong optical nonlinearities in gallium and indium selenides related to inter-valence-band transitions induced by light pulses

Repositori DSpace/Manakin

Valencià Castellano

Inici
Investigació
e-prints
22 - Física
Visualitza element

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Strong optical nonlinearities in gallium and indium selenides related to inter-valence-band transitions induced by light pulses

Mostra el registre parcial de l'element

dc.contributor.author	Segura García del Río, Alfredo
dc.contributor.author	Bouvier, Jaqueline
dc.contributor.author	Andrés, Miguel V.
dc.contributor.author	Manjón Herrera, Francisco Javier
dc.contributor.author	Muñoz Sanjosé, Vicente
dc.date.accessioned	2022-03-11T18:12:17Z
dc.date.available	2022-03-11T18:12:17Z
dc.date.issued	1997
dc.identifier.citation	Segura García del Río, Alfredo Bouvier, Jaqueline Andrés, Miguel V. Manjón Herrera, Francisco Javier Muñoz Sanjosé, Vicente 1997 Strong optical nonlinearities in gallium and indium selenides related to inter-valence-band transitions induced by light pulses Physical Review B 56 7 4075 4084
dc.identifier.uri	https://hdl.handle.net/10550/81927
dc.description.abstract	A nonlinear optical effect is shown to occur in gallium and indium selenides at photon energies of the order of 1.5 eV. It corresponds to transitions from a lower-energy valence band to the uppermost one when a nonequilibrium degenerate hole gas is created in the latter by a laser pulse. This inter-valence-band transition is allowed by crystal symmetry. Its oscillator strength is estimated through the f-sum rule and turns out to be about two orders of magnitude higher than that of the fundamental transition. The intensity of this effect is stronger when the pump pulse photon energy is close to that of the inter-valence-band transition; a condition that can be fulfilled only in indium selenide. The transient behavior of the sample transmittance is shown to be controlled by the balance between absorption and stimulated emission, which depends on the hole quasi-Fermi level and the gap renormalization due to Coulomb interaction in the electron-hole gas generated by the pump.
dc.language.iso	eng
dc.relation.ispartof	Physical Review B, 1997, vol. 56, num. 7, p. 4075-4084
dc.subject	Òptica
dc.title	Strong optical nonlinearities in gallium and indium selenides related to inter-valence-band transitions induced by light pulses
dc.type	journal article	es_ES
dc.date.updated	2022-03-11T18:12:17Z
dc.identifier.doi	10.1103/PhysRevB.56.4075
dc.identifier.idgrec	081079
dc.rights.accessRights	open access	es_ES