Nano-electromechanical Tuning of Dual-Mode Resonant Dielectric Metasurfaces for Dynamic Amplitude and Phase Modulation.
Nano-electromechanical Tuning of Dual-Mode Resonant Dielectric Metasurfaces for Dynamic Amplitude and Phase Modulation.
复制标题
DOI:
10.1021/acs.nanolett.0c04888
复制
发表时间:
2021-04-14
期刊:
影响因子:
10.8
通讯作者:
Faraon A
中科院分区:
文献类型:
--
作者:
Kwon H;Zheng T;Faraon A
Planar all-dielectric photonic crystals or metasurfaces host various resonant eigenmodes including leaky guided mode resonance (GMR) and bound states in the continuum (BIC). Engineering these resonant modes can provide new opportunities for diverse applications. Particularly, electrical control of the resonances will boost development of the applications by making them tunable. Here, we experimentally demonstrate nanoelectromechanical tuning of both the GMR and the quasi-BIC modes in the telecom wavelength range. With electrostatic forces induced by a few voltages, the devices achieve spectral shifts over 5 nm, absolute intensity modulation over 40%, and modulation speed exceeding 10 kHz. We also show that the interference between two resonances enables the enhancement of the phase response when two modes are overlapped in spectrum. A phase shift of 144° is experimentally observed with a bias of 4V. Our work suggests a direct route towards optical modulators through the engineering of GMRs and quasi-BIC resonances.
登录
查看更多内容
影响因子:
4
作者:
Karl, Nicholas;Vabishchevich, Polina P.;Brener, Igal
通讯作者:
Brener, Igal
影响因子:
9
作者:
Decker, Manuel;Staude, Isabelle;Kivshar, Yuri S.
通讯作者:
Kivshar, Yuri S.
影响因子:
10.8
作者:
Liu, Mingkai;Choi, Duk-Yong
通讯作者:
Choi, Duk-Yong
影响因子:
8.6
作者:
Koshelev, Kirill;Lepeshov, Sergey;Kivshar, Yuri
通讯作者:
Kivshar, Yuri
影响因子:
2.6
作者:
Kanamori, Yoshiaki;Matsuyama, Naoki;Hane, Kazuhiro
通讯作者:
Hane, Kazuhiro