Enhanced spontaneous emission at 1.55 μm from colloidal PbSe quantum dots in a Si photonic crystal microcavity

被引：65

作者：

Wu, Z. ^{[1
]}

Mi, Z.

Bhattacharya, P.

Zhu, T.

Xu, J.

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[2] Penn State Univ, Dept Engn Sci & Mech, University Pk, PA 16802 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 17期

关键词：

D O I：

10.1063/1.2731657

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report on the design, fabrication, and characterization of 1.55 mu m Si-based photonic crystal microcavity light emitters utilizing PbSe quantum dots. Efficient coupling of emission from PbSe quantum dots to Si photonic crystal membrane microcavity is achieved by inserting the quantum dots in a central air hole in the microcavity. Enhancement of spontaneous emission with linewidth of similar to 2.0 nm is observed at 1550 nm at room temperature. The Purcell factor and the spontaneous emission coupling factor are estimated to be 35 and 0.04, respectively. (c) 2007 American Institute of Physics.

引用

页数：3

共 16 条

[1] Ultrafast photonic crystal nanocavity laser [J].

Altug, Hatice ;

Englund, Dirk ;

Vuckovic, Jelena .

NATURE PHYSICS, 2006, 2 (07) :484-488

[2] Analysis of the experimental Q factors (∼1 million) of photonic crystal nanocavities [J].

Asano, T ;

Song, BS ;

Noda, S .

OPTICS EXPRESS, 2006, 14 (05) :1996-2002

[3] ANALYSIS OF SEMICONDUCTOR MICROCAVITY LASERS USING RATE-EQUATIONS [J].

BJORK, G ;

YAMAMOTO, Y .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1991, 27 (11) :2386-2396

[4] Coupling of PbS quantum dots to photonic crystal cavities at room temperature [J].

Fushman, I ;

Englund, D ;

Vuckovic, J .

APPLIED PHYSICS LETTERS, 2005, 87 (24) :1-3

[5] Low-threshold photonic crystal laser [J].

Loncar, M ;

Yoshie, T ;

Scherer, A ;

Gogna, P ;

Qiu, YM .

APPLIED PHYSICS LETTERS, 2002, 81 (15) :2680-2682

[6] Ultralow threshold on-chip microcavity nanocrystal quantum dot lasers [J].

Min, Bumki ;

Kim, Sungjee ;

Okamoto, Koichi ;

Yang, Lan ;

Scherer, Axel ;

Atwater, Harry ;

Vahala, Kerry .

APPLIED PHYSICS LETTERS, 2006, 89 (19)

[7] Colloidal synthesis of nanocrystals and nanocrystal superlattices [J].

Murray, CB ;

Sun, SH ;

Gaschler, W ;

Doyle, H ;

Betley, TA ;

Kagan, CR .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 2001, 45 (01) :47-56

[8] Pushing the band gap envelope: Mid-infrared emitting colloidal PbSe quantum dots [J].

Pietryga, JM ;

Schaller, RD ;

Werder, D ;

Stewart, MH ;

Klimov, VI ;

Hollingsworth, JA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (38) :11752-11753

[9] High quality-factor whispering-gallery mode in the photonic crystal hexagonal disk cavity [J].

Ryu, HY ;

Notomi, M ;

Kim, GH ;

Lee, YH .

OPTICS EXPRESS, 2004, 12 (08) :1708-1719

[10] Infrared quantum dots [J].

Sargent, EH .

ADVANCED MATERIALS, 2005, 17 (05) :515-522

← 1 2 →