Electric-field-induced ionic contributions to photoelasticity of diamond

Anastassakis, E

dc.contributor.author	Anastassakis, E	en
dc.date.accessioned	2014-03-01T01:06:04Z
dc.date.available	2014-03-01T01:06:04Z
dc.date.issued	1982	en
dc.identifier.issn	0022-3719	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9138
dc.subject.classification	Physics, Condensed Matter	en
dc.title	Electric-field-induced ionic contributions to photoelasticity of diamond	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0022-3719/15/11/029	en
heal.identifier.secondary	029	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0022-3719/15/11/029	en
heal.language	English	en
heal.publicationDate	1982	en
heal.abstract	It is shown from lattice dynamical calculations that an externally applied field can induce measurable changes in the photoelastic constants and the piezo-optical coefficients of diamond, in the region of the long-wavelength optical phonon at 1332 cm-1. This in turn may lead to narrow resonances or antiresonances of the Brillouin scattering efficiency when the incident radiation is chosen to be in the vicinity of the phonon frequency. The field may also induce Brillouin scattering in configurations which are normally forbidden. In all these calculations the phonon linewidth is taken into account explicitly. Assuming a value of 103 esu for the electric field, the complete dispersion curves are plotted in the region of 1332 cm-1, for the photoelasticity constants, the elasto-optical coefficients and the Brillouin scattering efficiency in allowed and forbidden configurations.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Journal of Physics C: Solid State Physics	en
dc.identifier.doi	10.1088/0022-3719/15/11/029	en
dc.identifier.isi	ISI:A1982NS26900029	en
dc.identifier.volume	15	en
dc.identifier.issue	11	en
dc.identifier.spage	2529	en
dc.identifier.epage	2547	en