Enhanced photoluminescence from embedded PbSe colloidal quantum dots in silicon-based random photonic crystal microcavities

Jun Yang, Junseok Heo, Ting Zhu, Jian Xu, Juraj Topolancik, Frank Vollmer, Rob Ilic, Pallab Bhattacharya

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Abstract

The experimental observation of enhanced photoluminescence from high- Q silicon-based random photonic crystal microcavities embedded with PbSe colloidal quantum dots is being reported. The emission is optically excited at room temperature by a continuous-wave Ti-sapphire laser and exhibits randomly distributed localized modes with a minimum spectral linewidth of 4 nm at 1.5 μm wavelength.

Original languageEnglish (US)
Article number261110
JournalApplied Physics Letters
Volume92
Issue number26
DOIs
Publication statusPublished - Jul 11 2008

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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