Lasing from Dye-doped Photonic Crystals with Graded Layers in Dichromate Gelatin Emulsions
|Authors||Kok, Mang Hin
Lee, Jeffrey Chi Wai
Tam, Wing Yim
Wong, George K. L.
Chan, C. T.
|Source||Applied physics letters , v. 92, (15), 2008, APR 14, article number 151108|
|Summary||We report on optically pumped lasing from dye-doped, graded-spacing layer structures of dichromate gelatin emulsions fabricated using two-beam holographic interference. The graded layers exhibited deep and wide photonic band gaps. Multimode lasing with both a low threshold and a high quality factor was observed at the band edge of the photonic band gap. We modeled the emissions from the dye-doped graded layer system using a finite difference time domain technique and achieved good agreement with experimental results. (C) 2008 American Institute of Physics.|
|Rights||Applied Physics Letters © copyright (2008) American Institute of Physics. The Journal's web site is located at http://apl.aip.org/|
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