標題: High Circular Polarized Nanolaser with Chiral Gammadion Metal Cavity
作者: Yu, Cheng-Li
Hsiao, Yu-Hao
Chang, Chiao-Yun
Cheng, Pi-Ju
Lin, Hsiang-Ting
Lai, Ming-Sheng
Kuo, Hao-Chung
Chang, Shu-Wei
Shih, Min-Hsiung
光電工程學系
光電工程研究所
Department of Photonics
Institute of EO Enginerring
公開日期: 12-May-2020
摘要: We demonstrate a circularly polarized laser with the metal-gallium-nitride gammadion nanocavities. The ultraviolet lasing signal was observed with the high circular dichroism at room temperature under pulsed optical pump conditions. Without external magnetism which breaks the time-reversal symmetry to favor optical transitions of a chosen handedness, the coherent outputs of these chiral nanolasers show a dissymmetry factor as high as 1.1. The small footprint of these lasers are advantageous for applications related to circularly polarized photons in future integrated systems, in contrast to the bulky setup of linearly-polarized lasers and quarter-wave plates.
URI: http://dx.doi.org/10.1038/s41598-020-64836-1
http://hdl.handle.net/11536/155459
ISSN: 2045-2322
DOI: 10.1038/s41598-020-64836-1
期刊: SCIENTIFIC REPORTS
Volume: 10
Issue: 1
起始頁: 0
結束頁: 0
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