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arXiv 2302.06121physics.optics
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利用亚波长截锥谐振腔宽带产生准束缚态连续模

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

Chun-Ho Lee, Mohamad Reza Nurrahman, Dongha Kim, Kwang-Yong Jeong, Kyoung-Ho Kim, Chun-Ho Lee, Min-Kyo Seo

摘要:

由于亚波长介质谐振器具有高的品质因数(Q-factor),连续介质准束缚态(Q-BIC)引起了人们的极大兴趣。然而,Q-BIC谐振条件对谐振器的几何形状太敏感,并且其在单晶片平台上的实际宽带产生受到限制。在这里,我们提出,采用底角作为结构自由度,截断纳米锥谐振器支持Q-BIC谐振,在>100 nm的宽波长范围内具有>150的高Q因子。我们希望我们的方法将提高利用Q-BIC谐振的各种应用需要宽带光谱调谐。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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