Modification of visible spontaneous emission with silicon nitride photonic crystal nanocavities

被引：59

作者：

Barth, Michael ^{[1
]}

Kouba, Josef ^{[2
]}

Stingl, Johannes ^{[1
]}

Loechel, Bernd ^{[2
]}

Bensona, Oliver ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-10117 Berlin, Germany

[2] BESSY, Appl Ctr Microengn, D-12489 Berlin, Germany

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 25期

关键词：

D O I：

10.1364/OE.15.017231

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photonic crystal (PC) nanocavities based on silicon nitride membranes are studied as tools for the manipulation of spontaneous emission in the wavelength range between 550 nm and 800 nm. We observe a strong modification of the fluorescence spectrum of dye molecules spin-cast on top of the PC, indicating an efficient coupling of the dye emission to the cavity modes. The cavity design is optimized with respect to the quality factor and values of nearly 1500 are achieved experimentally. Taking into account the small mode volume, which leads to a strong Purcell enhancement, these nanocavities enable the realization of efficient single photon sources in the visible region of the spectrum. Furthermore, their fabrication is fully compatible with existing CMOS technology, making an integration into more complex optoelectronic devices feasible. (C) 2007 Optical Society of America.

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页码：17231 / 17240

页数：10

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