Abstract
Optical metasurfaces have shown great potential for revolutionizing wave plates by enabling compact footprints and diversified functionalities. However, most metasurface wave plates (meta-WPs) are typically passive, featuring defined responses after fabrication, whereas dynamic meta-WPs have so far often been limited to ON and OFF states. Here, we design a dynamic dual-functional meta-WP based on judiciously designed low-loss Sb2Se3 meta-molecules at the telecom wavelength of 1.55 µm which enables reconfigurable linear-to-circular and linear-to-linear polarization conversion for orthogonal linear polarizations when Sb2Se3 transits between amorphous and crystalline states. In addition, a comprehensive electro-thermal simulation is carried out to verify the phase change process for realistic implementation. The designed dynamic dual-functional wave plate may open new avenues for developing integrated adaptive photonics with dynamic and multiplexed functionalities.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | Optics Letters |
| Vol/bind | 48 |
| Udgave nummer | 14 |
| Sider (fra-til) | 3685-3688 |
| ISSN | 0146-9592 |
| DOI | |
| Status | Udgivet - 15. jul. 2023 |
Bibliografisk note
Funding Information:Funding. China Scholarship Council (202106030165); National Natural Science Foundation of China (61774015, 62074015); 111 Project (B14010), Danmarks Frie Forskningsfond (1134-00010B); Villum Fonden (37372). Disclosures. The authors declare no conflicts of interest. Data availability. Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request. Supplemental document. See Supplement 1 for supporting content.
Publisher Copyright:
© 2023 Optica Publishing Group.