title: Spatial angle dependent lasing from a dye-doped two-dimensional hexagonal photonic crystal made of holographic polymer-dispersed liquid crystals.
abstract: The observation of spatial angle dependent lasing from a dye-doped two-dimensional photonic crystal (2D PC) holographic polymer dispersed liquid crystals made of hexagonal lattice structure is reported. With the increasing output angle of the laser beam in the plane perpendicular to the 2D PC, the lasing wavelength is red-shifted. By analyzing the lasing oscillation trace, we found that the effective lattice constant changes with the output angle, causing the spatial angle dependent lasing.
authors.affiliation: School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore.
authors.forename: D
authors.initials: D
authors.lastname: Luo
authors.forename: H T
authors.initials: HT
authors.lastname: Dai
authors.forename: H V
authors.initials: HV
authors.lastname: Demir
authors.forename: X W
authors.initials: XW
authors.lastname: Sun
authors.forename: H Z
authors.initials: HZ
authors.lastname: Yang
authors.forename: W
authors.initials: W
authors.lastname: Ji