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

被引：3

作者：

Zamani, Naser ^{[1
]}

Hatef, Ali ^{[2
]}

Nadgaran, Hamid ^{[1
]}

Keshavarz, Alireza ^{[3
]}

机构：

[1] Shiraz Univ, Coll Sci, Dept Phys, Shiraz 7194684795, Iran

[2] Nipissing Univ, Dept Comp Sci & Math, NCPL, North Bay, ON P1B 8L7, Canada

[3] Shiraz Univ Technol, Dept Phys, Shiraz 71555313, Iran

来源：

PLASMONICS: DESIGN, MATERIALS, FABRICATION, CHARACTERIZATION, AND APPLICATIONS XV | 2017年 / 10346卷

关键词：

Optical bistability; Vanadium dioxide nanoparticle; quantum dot; hybrid system; exciton; -; polariton; exciton-surface plasmon polariton; METAL-INSULATOR-TRANSITION; SYSTEMS;

D O I：

10.1117/12.2272622

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页数：8