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Optical bistability and optical response of an infrared quantum dot hybridized to VO2 nanoparticle
Author(s): Naser Zamani; Ali Hatef; Hamid Nadgaran; Alireza Keshavarz
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Paper Abstract

In this work, we theoretically investigate optical bistability and optical response of a hybrid system consisting of semiconductor quantum dot (SQD) coupled with a vanadium dioxide nanoparticle (VO2NP) in the infrared (IR) regime. The VO2 material exists in semiconductor and metallic phases below and above the critical temperature, respectively where the particle optical properties dramatically change during this phase transition. In our calculations a filling fraction factor controls the VO2NP phase transition when the hybrid system interacts with a laser field. We demonstrate that the switch-up threshold for optical bistability is strongly controlled by filling fraction without changing the structure of the hybrid system. Also, it is shown that, the threshold of optical bistability increases when the VO2NP phases changes from semiconductor to metallic phase. The presented results have the potential to be applied in designing optical switching and optical storage.

Paper Details

Date Published: 25 August 2017
PDF: 8 pages
Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 1034617 (25 August 2017); doi: 10.1117/12.2272622
Show Author Affiliations
Naser Zamani, Shiraz Univ. (Iran, Islamic Republic of)
Ali Hatef, Nipissing Univ. (Canada)
Hamid Nadgaran, Shiraz Univ. (Iran, Islamic Republic of)
Alireza Keshavarz, Shiraz Univ. of Technology (Iran, Islamic Republic of)


Published in SPIE Proceedings Vol. 10346:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV
Din Ping Tsai; Takuo Tanaka, Editor(s)

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