Lasing in nano-grating with Fano resonance

Ya-Bin Chen; Zi-Lan Deng; Jian-Wen Dong

doi:10.1117/12.2243733

25 October 2016 Lasing in nano-grating with Fano resonance

Ya-Bin Chen, Zi-Lan Deng, Jian-Wen Dong

Proceedings Volume 9685, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; and Smart Structures and Materials; 96850E (2016) https://doi.org/10.1117/12.2243733
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

We propose a new scheme of lasing in a nano-grating with Fano resonance by the independent control of dark and bright modes. The controllability of both dark and bright modes can be achieved by fine-tuning the widths of two kinds of metallic stripes in the nano-grating. It enables the match between resonant frequencies of the nano-grating structure and the absorption and emission frequencies of gain medium. For example, changing the width of the thin strip is to hit the emission peak of the gain medium, while the fat strip corresponds to the absorption peak of the gain medium. We work out an optimal example of silver grating immersing Rhodamine dye, verifying the lasing dynamic process with minimum threshold and maximum output power. It may provide a new way on low-threshold and high-efficient plasmon laser.

Citation Download Citation

Ya-Bin Chen, Zi-Lan Deng, and Jian-Wen Dong "Lasing in nano-grating with Fano resonance", Proc. SPIE 9685, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; and Smart Structures and Materials, 96850E (25 October 2016); https://doi.org/10.1117/12.2243733

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KEYWORDS

Metals

Absorption

Polarization

Electromagnetism

Neodymium

Plasmons

Finite element methods

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