RAMAN-STUDY OF CSKTIOPO4 WAVE-GUIDES

SAVATINOVA, I; TONCHEV, S; POPOV, T; LIAROKAPIS, E; ZILING, CC

dc.contributor.author	SAVATINOVA, I	en
dc.contributor.author	TONCHEV, S	en
dc.contributor.author	POPOV, T	en
dc.contributor.author	LIAROKAPIS, E	en
dc.contributor.author	ZILING, CC	en
dc.date.accessioned	2014-03-01T01:42:55Z
dc.date.available	2014-03-01T01:42:55Z
dc.date.issued	1994	en
dc.identifier.issn	0022-3727	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23986
dc.subject.classification	Physics, Applied	en
dc.subject.other	WAVE-GUIDES	en
dc.subject.other	KTIOPO4	en
dc.subject.other	SPECTROSCOPY	en
dc.title	RAMAN-STUDY OF CSKTIOPO4 WAVE-GUIDES	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	Planar waveguides were produced by K+-Cs+ exchange of Z-cut KTiOPO4 single domain crystals. The analysis of the refractive index profile has shown an exponential Cs+ distribution in the exchanged layers. By exciting different waveguide modes, Raman spectra were obtained from guide depths with varying Cs doping. Significant changes have been observed between Raman spectra of Cs:KTiOPO4 and those of pure KTiOPO4 only in the region of external vibrations while the internal modes, due to vibrations of the TiO6 and PO4 groups, are practically the same. The bands corresponding to the external vibrations were found to be strongly influenced by the substitution indicating strong disorder in the lattice, and possibly a structural phase transition. Furthermore, Raman spectroscopy proves to be an alternative technique for determining variation in Cs composition.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	JOURNAL OF PHYSICS D-APPLIED PHYSICS	en
dc.identifier.isi	ISI:A1994NY31300008	en
dc.identifier.volume	27	en
dc.identifier.issue	7	en
dc.identifier.spage	1384	en
dc.identifier.epage	1389	en