Ha, S. T., Paniagua‐Domínguez, R., & Kuznetsov, A. I. (2022). Room‐Temperature Multi‐Beam, Multi‐Wavelength Bound States in the Continuum Laser. Advanced Optical Materials, 10(19). Portico. https://doi.org/10.1002/adom.202200753
Abstract:
We report a highly polarized multi-beam, multi-wavelength III-V semiconductor laser based on the concept of bound states in the continuum (BIC). By utilizing destructive interferences of guided-mode resonances in an active slab supported by a grating structure, we create both symmetry-protected and accidental BIC resonances within the gain spectrum of InGaP multi-quantum wells and achieve lasing in these modes simultaneously. Well defined multi-lasing beams at different wavelengths (i.e., 664.9 nm @ 0.2, 656.4 nm @ 2.5, 646.4 nm @ 5.1, and 636.7 nm @ 7.6) with transverse magnetic polarization can be obtained in a single device operating at room temperature. Furthermore, the lasing wavelengths can be precisely tuned by changing the grating parameters. The laser concept presented in this paper is promising for applications in highly directional surface-emitting lasers, optical communications, bio-sensing and signal processing.
License type:
Publisher Copyright
Funding Info:
This research / project is supported by the A*STAR - MTC Programmatic
Grant Reference no. : M21J9b0085
This research / project is supported by the A*STAR - SERC Pharos Programme
Grant Reference no. : 152 73 0025
Description:
This is the peer reviewed version of the following article: Ha, S. T., Paniagua‐Domínguez, R., & Kuznetsov, A. I. (2022). Room‐Temperature Multi‐Beam, Multi‐Wavelength Bound States in the Continuum Laser. Advanced Optical Materials, 10(19). Portico. https://doi.org/10.1002/adom.202200753, which has been published in final form at doi.org/10.1002/adom.202200753. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.