Broadband generation of quasi bound-state-in-continuum modes using subwavelength truncated cone resonators

Autor:	Lee, Chun-Ho, Nurrahman, Mohamad Reza, Kim, Dongha, Jeong, Kwang-Yong, Kim, Kyoung-Ho, Seo, Min-Kyo
Rok vydání:	2023
Předmět:	Physics - Optics
Druh dokumentu:	Working Paper
Popis:	Allowing a high quality factor (Q-factor) to a sub-wavelength dielectric resonator, quasi-bound states in the continuum (Q-BIC) has gained much interest. However, the Q-BIC resonance condition is too sensitive to the geometry of the resonator and its practical broadband generation on a single-wafer platform has been limited. Here, we present that employing the base angle as a structural degree of freedom, the truncated nano-cone resonator supports the Q-BIC resonance with a high Q-factor of >150 over a wide wavelength range of >100 nm. We expect our approach will boost the utilization of the Q-BIC resonance for various applications requiring broadband spectral tuning. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2302.06121 Zobrazit plný text záznamu View this record from Arxiv