Researchers from Changchun University of Science and Technology and China Jiliang University have introduced two novel strategies to enhance laser cavities using Bound States in the Continuum (BIC) :
These designs dramatically improved the Q-factor, with the reflective boundary reaching 13,974 and the graded design achieving 92,091. Notably, the team successfully demonstrated a 940 nm electrically pumped BIC laser with a Q-factor of 11,776, marking a breakthrough in practical photonic device applications.
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The work entitled “ Performance optimization of planar photonic crystal bound states in the continuum cavities: mitigating finite-size effects ” was accepted by Frontiers of Optoelectronics (published on Mar. 14, 2025).
Frontiers of Optoelectronics
Experimental study
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Performance optimization of planar photonic crystal bound states in the continuum cavities: mitigating finite-size effects
14-Mar-2025