TY - GEN
T1 - Orbital angular momentum generation from a defect in photonic crystals
AU - Chen, Menglin L.N.
AU - Jiang, Li Jun
AU - Sha, Wei E.I.
N1 - Funding Information:
This work was supported by the Research Grants Council of Hong Kong (GRF 712612 and 711511), National Natural Science Foundation of China (Nos. 61271158 and 61201122), Seed Fund of University of Hong Kong (Nos. 201309160052 and 201311159108), and University Grants Council of Hong Kong (No. AoE/P-04/08).
Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/18
Y1 - 2017/10/18
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85042264849&partnerID=8YFLogxK
U2 - 10.1109/APUSNCURSINRSM.2017.8072880
DO - 10.1109/APUSNCURSINRSM.2017.8072880
M3 - Conference article published in proceeding or book
AN - SCOPUS:85042264849
T3 - 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
SP - 1675
EP - 1676
BT - 2017 IEEE Antennas and Propagation Society International Symposium, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017
Y2 - 9 July 2017 through 14 July 2017
ER -