Quantum dot luminescence amplifier based on optical metamaterial for visible light

Wenliang Hu; Zhiqiang Qi; Haocheng Sun

doi:10.1117/12.2584571

4 December 2020 Quantum dot luminescence amplifier based on optical metamaterial for visible light

Wenliang Hu, Zhiqiang Qi, Haocheng Sun

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 116170I (2020) https://doi.org/10.1117/12.2584571
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

This paper reports a new quantum dot luminescence amplifier design based on metal/insulator/metal metamaterial structure for weak visible light emission enlargement, in which quantum dots can be coupled between dielectric lays. The detector consists of periodical grating structure, made up by two silver thin films and middle Al2O3 insulator lay. In the experiment the magnetic dipole can produce spontaneous emission at yellow light between the dielectric layers. Through the structure design and spectrum calculation using the finite element time difference simulation, the result show that the quantum dots emission can be largely enhanced when the strong electromagnetic resonance spectrum in the inner MIM covers the quantum dots emission peak wavelength. By the optimal design for detector’s structure, material and geometry parameters, the magnetic dipole quantum dot at 593 nm can realize 110 and 180 times far field and near field enhancement. Meantime it proves that this enhancement show quite low sensitivity about this quantum dots displacement and structure geometry parameters change, which provides practical application possibilities for the quantum dots photo detector’ single photo detector.

Citation Download Citation

Wenliang Hu, Zhiqiang Qi, and Haocheng Sun "Quantum dot luminescence amplifier based on optical metamaterial for visible light", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 116170I (4 December 2020); https://doi.org/10.1117/12.2584571

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