Enhancement of light emission from single quantum dot in photonic crystal nanocavity by using cavity resonant excitation
Enhancement of light emission from single quantum dot in photonic crystal nanocavity by using cavity resonant excitation
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DOI：
10.1063/1.2408636
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发表时间：
2006-12-11
影响因子：
4
通讯作者：
Arakawa, Yasuhiko
中科院分区：
文献类型：
--
作者：
Nomura, Masahiro;Iwamoto, Satoshi;Arakawa, Yasuhiko
作者展示了嵌入光子晶体缺陷纳米腔中的单个InGaAs自组装量子点（QD）的高效选择性激发。单个量子点的第一激发态与腔模共振共振，在腔共振激发下显示出从基态的强发光。光发射比位于未图案化区域的单个QD的光发射强近十倍。这一结果归因于腔共振效应对有效吸收的局部增强。这种高效的激发技术可用于单光子源。(c)2006年，美国物理学会。
The authors demonstrate highly efficient selective excitation of a single InGaAs self-assembled quantum dot (QD) embedded in a photonic crystal defect nanocavity. A single QD, whose first excited state is resonant with the cavity mode resonance, shows strong light emission from the ground state under cavity resonant excitation. The light emission is nearly ten times stronger than that of a single QD located at an unpatterned area. This result is attributed to the local enhancement of the effective absorption by the cavity resonant effect. This highly efficient excitation technique can be useful for single photon sources. (c) 2006 American Institute of Physics.