Polarization-insensitive self-collimation and beam splitter based on triangular-lattice annular photonic crystals

• Main Authors: Jiang, Liyong., Wu, Hong., Li, Xiangyin.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2014
• Subjects: DRNTU::Science::Physics::Optics and light
• Online Access: https://hdl.handle.net/10356/100369; http://hdl.handle.net/10220/18620
• Institution: Nanyang Technological University

This paper systematically investigates the self-collimation behavior in silicon-based triangular-lattice annular photonic crystals (PCs). It is found that, in comparison with normal air-hole PCs, annular PCs more easily suppress the separation between TE-2 and TM-2 bands along the Γ-M direction by i...