Free spectral range enlargement by selective suppression of optical modes in photonic crystal L7 microcavities

Author

Prieto, I. ; Munoz-Matutano, G. ; Llorens, J.M. ; Munoz-Camunez, L.E. ; Canet-Ferrer, J. ; Robles, C. ; Martinez-Pastor, J.P. ; Postigo, P.A.

Author_Institution

Inst. de Microelectron. de Madrid, CNM, Tres Cantos, Spain

fYear

2015

Firstpage

1

Lastpage

3

Abstract

We show an enlargement in the free spectral range (FSR) of the emission spectra of a L7 photonic crystal microcavity (PCM). The FSR enlargement is achieved by the selective modal suppression of the second cavity mode. The selective suppression is made by introducing two nano-inclusions in specific sites within the defect region that forms the cavity. We have demonstrated the suppression of the second mode of the L7-PCM, and a significant increase in the FSR of the fundamental mode. The method provides an alternative to engineer the modal structure of a photonic crystal microcavity. The large FSR-value might improve the emission properties of light sources based on photonic crystal structures.

Keywords

micro-optics; microcavities; photoluminescence; photonic crystals; L7-PCM emission spectra FSR enlargement; free spectral range enlargement; light sources; optical mode selective suppression; photonic crystal L7 microcavity modal structure; second cavity mode selective modal suppression; Biomedical optical imaging; Cavity resonators; Microcavities; Optical device fabrication; Phase change materials; Photonic crystals; free spectral range; microcavity; photonic crystals; single mode emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2015 17th International Conference on

Conference_Location

Budapest

Type

conf

DOI

10.1109/ICTON.2015.7193640

Filename

7193640