Piezoelectric effect on artificial phonon-plasmon polariton in lithium niobate(LiNbO[sub 3])

Autor:	Anju Pansari, B. K. Sahoo, Vikas Gedam
Rok vydání:	2013
Předmět:	Materials science Condensed Matter::Other business.industry Phonon Lithium niobate Surface plasmon Optical physics Physics::Optics Metamaterial Piezoelectricity Condensed Matter::Materials Science chemistry.chemical_compound chemistry Polariton Optoelectronics business Plasmon
Zdroj:	AIP Conference Proceedings.
ISSN:	0094-243X
DOI:	10.1063/1.4810411
Popis:	The coupling between optical phonons of piezoelectric metamaterial and the plasmons of semiconductor substrate results in the formation of a type of artificial surface polariton: phonon-plasmon polariton. The additional electric polarizations induced by the piezoelectric effect contribute to the effective dielectric function and to the elastic constant of the metamaterial film. In this work, we have calculated the effective elastic constant of the piezoelectric metamaterial. This additional contribution enhances both velocity and frequency of surface polaritons by 15%. The artificial surface phonon-plasmon polariton may offer opportunities in optical science such as acoustic excitation of surface plasmons and vice versa.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78823dceaf8f30540c899686bb39fdf6 https://doi.org/10.1063/1.4810411 Zobrazit plný text záznamu