期刊
OPTICS EXPRESS
卷 24, 期 5, 页码 4890-4898出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.24.004890
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资金
- Singapore National Research Foundation [NRFF2012-02]
- Singapore MOE [MOE2011-T3-1-005]
We perform a numerical study of two-dimensional amorphous photonic structures consisting of dielectric rods in a close-packed honeycomb-like structure, with nearest-neighbor rods joined by dielectric veins of various widths. For vein widths comparable to the rod radius, the in-plane Q factors for the transverse magnetic (TM) modes are enhanced by around two orders of magnitude, due to the presence of short-range order in the amorphous lattice, even though the density of states has a weak dip rather than a prominent gap. Such structures may be useful for realizing multi-mode random quantum cascade lasers, which lase in the TM polarization. (C) 2016 Optical Society of America
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