標題: Multi-Functional Light Emitter Based on Band-Edge Modes Near Gamma-Point in Honeycomb Photonic Crystal
作者: Lee, Po-Tsung
Lu, Tsan-Wen
Sio, Kuan-Un
光電工程學系
Department of Photonics
關鍵字: Enhanced light emission;honeycomb photonic crystal;optical sensor;semiconductor laser
公開日期: 15-Jun-2011
摘要: In this report, we demonstrate multi-functional light emitter based on band-edge modes near Gamma-point in a two-dimensional honeycomb photonic crystal slab. Different band-edge modes near Gamma-point are identified, including the monopole (Gamma(2)), dipole (Gamma(4,5)) and quadrupole (Gamma(6,7)) modes. The monopole and quadrupole modes lasing are observed with high side-mode suppression-ratio of 35 dB and high index sensitivity of 375 nm per refractive index unit, which shows their potential in optical micro-laser and index sensor applications. Over five-fold photoluminescence enhancement with broad band-width of 100 nm from the dipole mode is also observed at room temperature, which shows the advantage of honeycomb lattice structure for designing high brightness light emitting diodes.
URI: http://dx.doi.org/10.1109/JLT.2011.2142176
http://hdl.handle.net/11536/22573
ISSN: 0733-8724
DOI: 10.1109/JLT.2011.2142176
期刊: JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume: 29
Issue: 12
起始頁: 1797
結束頁: 1801
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