Open AccessLasing characteristic of organic octagonal quasicrystal slabs with single-defect microcavity at low-index contrast
Author(s) -
Guan Yang,
Xiao Chen,
Yiquan Wang,
Shuai Feng
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.011457
Subject(s) - lasing threshold , optics , materials science , refractive index , quasicrystal , full width at half maximum , optoelectronics , amplified spontaneous emission , laser , physics , condensed matter physics , wavelength
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.