Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1002/lpor.202100118

Ключевые слова: BIC lasers, bound state in the continuum, Lattice resonances, metasurfaces, Mie resonance

Аннотация: Bound states in the continuum (BICs) have attracted considerable research attention due to their infinite quality factor (Q-factor) and extremely localized fields, which drastically enhances light–matter interactions and yields high potential in topological photonics and quantum optics. In this study, the room temperature directionПоказать полностьюal lasing normal to a BIC metasurface is demonstrated with hybrid surface lattice resonances. Compared to the plasmonic nanolasers, the BIC metasurface lasers possess directional radiation and a larger emission volume. The high Q-factor resonance of BIC metasurface overcomes the limitation of a large mode volume in achieving low-threshold lasing. In addition, a design rule is proposed to prevent the occurrence of wavelength shift when the Q-factor changes; thus, the lasing thresholds for different BIC metasurfaces can be compared. In this work, the high localization ability of BICs is used to achieve the low lasing threshold (1.25 nJ) at the room temperature. The “light in–light out” diagram of the aforementioned laser based on simulations and experiments exhibits a large spontaneous emission coupling factor (β = 0.9) and the S-curve. The device developed in this study can be used in various applications, such as quantum emitters, optical sensing, nonlinear optics, and topological states engineering.

Журнал: Laser & Photonics Reviews

ISSN журнала: 18638880

Издатель: Wiley - VCH Verlag GmbH & CO. KGaA

• Yang J.H. (Institute of Photonic System,College of Photonics,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Huang Z.T. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Hong K.B. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Li H. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Chen J.W. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Hsu C.Y. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Lu T.C. (Department of Photonics,College of Electrical and Computer Engineering,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Maksimov D.N. (Institute of Engineering Physics and Radio Electronics,Siberian Federal University)
• Pankin P.S. (Institute of Engineering Physics and Radio Electronics,Siberian Federal University)
• Timofeev I.V. (Institute of Engineering Physics and Radio Electronics,Siberian Federal University)
• Liu Y.Y. (Institute of Lighting and Energy Photonics,College of Photonics,National Chiao Tung University and National Yang Ming Chiao Tung University)
• Lin T.R. (Department of Mechanical and Mechatronic Engineering,National Taiwan Ocean University)
• Yang C.S. (Micro/Nano Device Inspection and Research Center,National Taiwan Normal University)
• Chen K.P. (Institute of Imaging and Biomedical Photonics,College of Photonics,National Chiao Tung University and National Yang Ming Chiao Tung University)

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