Optical bistability and optical response of an infrared quantum dot hybridized to VO2 nanoparticle

Naser Zamani; Ali Hatef; Hamid Nadgaran; Alireza Keshavarz

doi:10.1117/12.2272622

25 August 2017 Optical bistability and optical response of an infrared quantum dot hybridized to VO₂ nanoparticle

Naser Zamani, Ali Hatef, Hamid Nadgaran, Alireza Keshavarz

Author Affiliations +

Proceedings Volume 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV; 1034617 (2017) https://doi.org/10.1117/12.2272622
Event: SPIE Nanoscience + Engineering, 2017, San Diego, California, United States

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.

Citation Download Citation

Naser Zamani, Ali Hatef, Hamid Nadgaran, and Alireza Keshavarz "Optical bistability and optical response of an infrared quantum dot hybridized to VO₂ nanoparticle", Proc. SPIE 10346, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XV, 1034617 (25 August 2017); https://doi.org/10.1117/12.2272622

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