Multiexcitonic two-state lasing in a CdSe nanocrystal laser

被引：68

作者：

Chan, Y ^{[1
]}

Caruge, JM ^{[1
]}

Snee, PT ^{[1
]}

Bawendi, MG ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 13期

基金：

美国国家科学基金会; 德国科学基金会;

关键词：

D O I：

10.1063/1.1795368

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report simultaneous amplified spontaneous emission from two different multiexcitonic transitions -1S(e)-1S(3/2) and 1P(e)-1P(3/2)(-) of colloidal CdSe nanocrystals (NCs) stabilized in high volume fraction in titania matrices. Two-state lasing from both multiexcitonic transitions is achieved in a surface-emitting distributed feedback CdSe NC laser. Variable stripe length measurements show that the gain from the 1P(e)-1P(3/2) transition is approximately twice that of the -1S(e)-1S(3/2) transition for 4.2 nm radius CdSe/ZnS core-shell NCs. (C) American Institute of Physics.

引用

页码：2460 / 2462

页数：3

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