Millimeter wave absorption by confined acoustic modes in CdSe/CdTe core-shell quantum dots
Resource
Journal of Physics: Conference Series 92: 012039
Journal
Journal of Physics: Conference Series
Journal Volume
92
Journal Issue
1
Date Issued
2007
Author(s)
Liu, Tzu-Ming
Lu, Ja-Yu
Kuo, Chung-Chiu
Wen, Yu-Chieh
Lai, Chih-Wei
Yang, Meng-Ju
Murray, Daniel B.
Saviot, Lucien
Abstract
Taking advantage of the specific core-shell charge separation structure in the CdSe/CdTe core-shell Type-II quantum dots (QDs), we experimentally observed the resonant-enhanced dipolar interaction between millimeter-wave (MMW) photons and their corresponding (l = 1) confined acoustic phonons. With proper choice of size, the absorption band can be tuned to desired frequency of MMW imaging. Exploiting this characteristic absorption, in a fiber-scanned MMW imaging system, we demonstrated the feasibility of CdSe/CdTe QDs as the contrast agents of MMW imaging. © 2007 IOP Publishing Ltd.
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Type
journal article
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