Composite photonic crystal cavities of macro porous silicon and lead sulfide thin films

Nadav Gutman, Anna Osherov, Yuval Golan, Amir Saar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We report on the design and demonstration of novel photonic crystal (PC) cavities. The cavity active region is made of a macro-porous silicon infiltrated with optically active lead sulfide thin films (emitting at a wavelength of about ∼2.9 μm), while the surrounding silicon PC acts as a mirror that confines the infrared light. The luminescence spectrum of the composite PC cavity presents a set of resonant frequencies associated with the cavity modes that overlap with the photonic stopbands of the host silicon PC.

Original languageAmerican English
Pages (from-to)1394-1398
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume208
Issue number6
DOIs
StatePublished - Jun 2011

Keywords

  • cavities
  • lead sulfide
  • photonic crystals
  • porous silicon

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