Polarization Tunable, Multicolor Emission from Core鈥揝hell Photonic III鈥揤 Semiconductor Nanowires
详细信息 查看全文
- 作者：Sudha Mokkapati ; Dhruv Saxena ; Nian Jiang ; Patrick Parkinson ; Jennifer Wong-Leung ; Qiang Gao ; Hark Hoe Tan ; Chennupati Jagadish
- 刊名：Nano Letters
- 出版年：2012
- 出版时间：December 12, 2012
- 年：2012
- 卷：12
- 期：12
- 页码：6428-6431
- 全文大小：262K
- 年卷期：v.12,no.12(December 12, 2012)
- ISSN：1530-6992
文摘
We demonstrate luminescence from both the core and the shell of III鈥揤 semiconductor photonic nanowires by coupling them to plasmonic silver nanoparticles. This demonstration paves the way for increasing the quantum efficiency of large surface area nanowire light emitters. The relative emission intensity from the core and the shell is tuned by varying the polarization of the excitation source since their polarization response can be independently controlled. Independent control on emission wavelength and polarization dependence of emission from core鈥搒hell nanowire heterostructures opens up opportunities that have not yet been imagined for nanoscale polarization sensitive, wavelength-selective, or multicolor photonic devices based on single nanowires or nanowire arrays.