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IOP Publishing, Journal of Physics: Conference Series, (92), p. 012039, 2007

DOI: 10.1088/1742-6596/92/1/012039

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Millimeter wave absorption by confined acoustic modes in CdSe/CdTe core-shell quantum dots

Journal article published in 2007 by T.-M. Liu, J.-Y. Lu, C.-C. Kuo, Y.-C. Wen, C.-W. Lai, M.-J. Yang, P.-T. Chou ORCID, Daniel B. Murray, Lucien Saviot ORCID, C.-Kuang Sun ORCID, C. Kuang Sun
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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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.