title: Lasing characteristic of organic octagonal quasicrystal slabs with single-defect microcavity at low-index contrast.
abstract: We experimentally demonstrate and characterize an organic octagonal quasicrystal slab with a single-defect microcavity at low-index contrast. The gain medium is the conjugated-polymer, composed by two PPV derivatives, a BEHP-PPV and a MEH-PPV. By optical pumping, the lasing action is achieved at 607 nm with a FWHM of 1 nm. The threshold of lasing is 9 μJ/cm(2). The intensity of the lasing peak depends linearly on the pump energy above the threshold.
authors.affiliation: School of Science, Minzu University of China, Beijing 100081, China.
authors.forename: Guojian
authors.initials: G
authors.lastname: Yang
authors.forename: Xiao
authors.initials: X
authors.lastname: Chen
authors.forename: Yiquan
authors.initials: Y
authors.lastname: Wang
authors.forename: Shuai
authors.initials: S
authors.lastname: Feng
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D053844:Lasers, Solid-State; D008904:Miniaturization; D009930:Organic Chemicals / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*
chemical_list: D009930:Organic Chemicals