Abstract
Orbital angular momentum (OAM) is generated from a defect in two-dimensional (2-D) photonic crystals (PC). By breaking the translation symmetry along the two orthogonal directions, the localized defect states can be supported within photonic bandgap of the PC. Particularly, we examine the characteristics of the point defect states along the azimuthal direction by the finite-difference (FD) based eigenvalue analysis. We find that vortex beam carrying OAM can be generated from the defect. The novel design can be easily integrated in optical circuits.
Recommended Citation
M. L. Chen et al., "Orbital Angular Momentum Generation From A Defect In Photonic Crystals," 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings, pp. 1675 - 1676, Institute of Electrical and Electronics Engineers, Oct 2017.
The definitive version is available at https://doi.org/10.1109/APUSNCURSINRSM.2017.8072880
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-153863284-0
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
18 Oct 2017
Comments
National Natural Science Foundation of China, Grant 711511