Electrically probing photonic bandgap phenomena in contacted defect nanocavities

被引：20

作者：

Hofbauer, F. ^{[1
]}

Grimminger, S. ^{[1
]}

Angele, J. ^{[1
]}

Boehm, G. ^{[1
]}

Meyer, R. ^{[1
]}

Amann, M. C. ^{[1
]}

Finley, J. J. ^{[1
]}

机构：

[1] Tech Univ Munich, Walter Schottky Inst, Dept Phys, D-85748 Garching, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 20期

关键词：

D O I：

10.1063/1.2812576

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate an electrically tunable two dimensional photonic crystal nanocavity containing InAs self-assembled quantum dots (QDs). Photoluminescence and electroluminescence measurements are combined to probe the cavity mode structure and demonstrate a local electrical contact to the quantum dots. Measurements performed as a function of the electric field enable us to probe the capture, relaxation, and recombination dynamics of photogenerated carriers inside the quantum dots emitting into a modified photonic environment. Furthermore, the two dimensional photonic crystal is probed by spatially dependent photocurrent spectroscopy indicating a 3.5x enhancement of the local radiative lifetime of the QDs inside the photonic crystal environment. (c) 2007 American Institute of Physics.

引用

页数：3

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