2026-10-12T13:50:37Z https://www.scidb.cn/oai

10.57760/sciencedb.08379 2023-05-23T11:24:39Z

2023-05-23 Polarization-independent and all-optically modulated multiband metamaterial coherent perfect absorber doi:10.57760/sciencedb.08379 en A polarization-independent, all-optically modulated multiband metamaterial coherent perfect absorber (CPA) is proposed. Numerical results demonstrate that a wide range of amplitudes can be achieved by adjusting the phase difference between two incident light beams, with potential telecom wavelengths and simultaneous modulation of absorption at 1310 nm and 1550 nm. Additionally, we successfully realize switchable logical gates at the dip between absorption peaks. By leveraging bound states in the continuum (BIC) mode, we achieve another absorption band, expanding the absorber’s application range and enhancing flexibility Our results indicate significant potential for the development of modulated optical response devices, including optical switches, smart multi-band absorbers, and telecom devices. metamaterial; coherent perfect absorber; multiband; all-optical modulation; bound states in the continuum (BIC) Li Xiaoman Feng He Yunmaojin Wang Zan Hu Yigu Gu Yunjiao Liu Fenghua Wu Weiping PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset http://www.doi.org/10.1016/j.optlastec.2023.109644 Science Data Bank