TY - GEN
T1 - Active Quasi-BIC Enabled Optical Vortex Generation
AU - Wu, Yuhao
AU - Kang, Lei
AU - Campbell, Sawyer D.
AU - Werner, Pingjuan Li
AU - Werner, Douglas Henry
N1 - Funding Information:
This work was supported by the John L. and Genevieve H. McCain endowed chair professorship at the Pennsylvania State University.
Publisher Copyright:
© 2023 ACES.
PY - 2023
Y1 - 2023
N2 - Electromagnetic beams that carry orbital angular momentum (OAM) have enormous potential in various applications. By exploiting the winding topology of quasi-BIC modes around the polarization singularity in k-space, a novel optical vortex (OV) generation method has been recently proposed. Compared with the conventional approaches, this method can lead to robust OV generators which are feasible and easy to fabricate. Here, by leveraging the nonlinear dynamics of silicon, we demonstrate a silicon-based quasi-BIC platform supporting optically switchable OV generation. A Huygens sources-based model extends the near-field (NF) spatial modal analysis to the far-field (FF) region. Meanwhile, the OV switching effects in the picosecond scale are studied using nonlinear modeling at near-infrared wavelengths. The demonstrated nontrivial topological nature can expand the applications of BIC-based devices in many areas including high-capacity optical communication and mode-division multiplexing.
AB - Electromagnetic beams that carry orbital angular momentum (OAM) have enormous potential in various applications. By exploiting the winding topology of quasi-BIC modes around the polarization singularity in k-space, a novel optical vortex (OV) generation method has been recently proposed. Compared with the conventional approaches, this method can lead to robust OV generators which are feasible and easy to fabricate. Here, by leveraging the nonlinear dynamics of silicon, we demonstrate a silicon-based quasi-BIC platform supporting optically switchable OV generation. A Huygens sources-based model extends the near-field (NF) spatial modal analysis to the far-field (FF) region. Meanwhile, the OV switching effects in the picosecond scale are studied using nonlinear modeling at near-infrared wavelengths. The demonstrated nontrivial topological nature can expand the applications of BIC-based devices in many areas including high-capacity optical communication and mode-division multiplexing.
UR - http://www.scopus.com/inward/record.url?scp=85160012492&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85160012492&partnerID=8YFLogxK
U2 - 10.23919/ACES57841.2023.10114756
DO - 10.23919/ACES57841.2023.10114756
M3 - Conference contribution
AN - SCOPUS:85160012492
T3 - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023
BT - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 International Applied Computational Electromagnetics Society Symposium, ACES-Monterey 2023
Y2 - 26 March 2023 through 30 March 2023
ER -