Ultralow-threshold single-mode lasing based on a one-dimensional asymmetric photonic bandgap structure with liquid crystal as a defect layer

Hsiao Tsung Wang, Jia De Lin, Chia Rong Lee, Wei Lee

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

In this Letter, we propose defect-mode lasing from a one-dimensional asymmetric photonic structure with dye-doped nematic liquid crystal as a central defect layer. The local field intensity of the distinguished single defect mode at the overlapped photonic band edges is drastically enhanced by the asymmetric structure consisting of two distinct multilayer photonic crystals. With high density of states of photons, effective output lasing emission and maximum input excitation are ensured. As a result, the single-mode lasing with a low excitation threshold of 0.2 μJ/pulse is achieved due to the combination of the defect layer and the photonic band edge effect.

原文English
頁(從 - 到)3516-3519
頁數4
期刊Optics Letters
39
發行號12
DOIs
出版狀態Published - 2014 6月 15

All Science Journal Classification (ASJC) codes

  • 原子與分子物理與光學

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