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Author(s): Ren, YH (Ren, Yuhao); Li, PS (Li, Peishen); Liu, ZJ (Liu, Zhuojun); Chen, ZH (Chen, Zihao); Chen, YL (Chen, You-Ling); Peng, C (Peng, Chao); Liu, J (Liu, Jin)

Source: SCIENCE ADVANCES Volume: 8 Issue: 51 DOI: 10.1126/sciadv.ade8817 Published: DEC 21 2022

Abstract: The pursuit of compact lasers with low thresholds has imposed strict requirements on tight light confinements with minimized radiation losses. Bound states in the continuum (BICs) have been recently demonstrated as an effective mechanism to trap light. However, most reported BIC lasers are still bulky due to the absence of in -plane light confinement. Here, we combine BICs and photonic bandgaps to realize three-dimensional light con-finements, as referred to miniaturized BICs (mini-BICs). We demonstrate highly compact active mini-BIC resona-tors with a record high-quality (Q) factor of up to 32,500, which enables single-mode lasing with the lowest threshold of 80 W/cm2 among the reported BIC lasers. In addition, photon statistics measurements further confirm the occurrence of the stimulated emission in our devices. Our work reveals a path toward compact BIC lasers with ultralow power consumption and potentially boosts the applications in cavity quantum electro-dynamics, nonlinear optics, and integrated photonics.

Accession Number: WOS:000922847700008

PubMed ID: 36563161

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

Chen, Zihao                  0000-0002-6125-3306

Liu, Zhuojun         HLG-8986-2023         0000-0003-2063-8071

YuHao, Ren                  0000-0002-5221-2924

Liu, Jin                  0000-0001-5727-6874

ISSN: 2375-2548

Full Text: https://www.science.org/doi/10.1126/sciadv.ade8817