Towards Hosting Bound State in Continuum in Specialty Optical Microcavity

2019/05/31 by Harsh K. Gandhi, Gandhi, Harsh K., Arnab Laha +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #Optics (physics.optics) #Photonic Crystals and Applications #Photonic and Optical Devices #Strong Light-Matter Interactions

paper · pdf · doi:10.48550/arxiv.1905.13642

openalex publication_date 2019/05/31 · openalex created_date 2019/06/07 · openalex updated_date 2026/07/28

Abstract

We exploit the interaction between supported proximity resonances in an open non-uniformly pumped optical microcavity to host a Bound State in Continuum (BIC). Using the modeling of the S-matrix, we study the coupling between the interacting states forming a BIC. We report the divergence of Quality Factor (Q-factor) of one of the interacting states, numerically demonstrated with the appropriate tuning of the spatial variation of unequal gain-loss within the system whose stability has been discussed in terms of the Petermann factor at the point of BIC. Such high lifetime has been marked as a signature of BIC.

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