Fabrication of Metal Nanocomposite Photonic Crystal for Switching

Author

Asadi, Reza ; Mohammad, M.M. ; Tavassoly, M.T.

Author_Institution

Dept. of Phys., Univ. of Tehran, Tehran, Iran

Volume

23

Issue

20

fYear

2011

Firstpage

1436

Lastpage

1438

Abstract

In this study, we fabricate a nanocomposite photonic crystal (PC) by doping low concentration gold nanoparticles in a one-dimensional slab polymer PC. By coating a ZnS layer, we get a fairly sharp Fano resonance dip with quality factor about 30 in the transmission spectrum of the PC near the surface plasmonic resonance of gold nanoparticles. We show theoretically that in spite of absorption by the gold nanoparticles this nanocomposite PC can be used as a good switch with low pump threshold intensity, high contrast, and high efficiency.

Keywords

II-VI semiconductors; Q-factor; doping; gold; infrared spectra; nanocomposites; nanoparticles; nanophotonics; optical fabrication; optical films; optical polymers; optical switches; photonic crystals; surface plasmon resonance; wide band gap semiconductors; zinc compounds; Au; ZnS; absorption spectra; coating; low concentration gold nanoparticle doping; metal nanocomposite photonic crystals; one-dimensional slab polymer; optical switching; pump threshold intensity; quality factor; sharp Fano resonance dip; surface plasmonic resonance; transmission spectra; Absorption; Gold; Nanoparticles; Optical switches; Photonic crystals; Q factor; Slabs; Nanophotonics; optical switches; photonic crystals (PCs); plasmonic;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2162103

Filename

5954155