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Laser physics study reveals that pre-merging bound states in the continuum improve threshold discrimination in microscale lasers, highlighting modal selectivity as a key design rule.
Merging bound states in the continuum offers a powerful route to compact lasers, but maximum Q is not always optimal. Peng and colleagues show that pre-merging conditions provide stronger threshold discrimination between target and competing modes, establishing modal selectivity as a key design rule for robust single-mode microscale BIC lasers.
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Gianluigi Zito (2026) studied this question.
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