A broadban-tunable photonic bandgap and thermally convertible laser with an ultra-low lasing threshold from a refilled chiral polymer template

Jia De Lin, Hsin Yu Lin, Guan Jhong Wei, Yu Chou Chuang, Lin Jer Chen, Ting Shan Mo, Chia Rong Lee

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

This study demonstrates a broadband-tunable photonic bandgap (PBG) and thermally convertible laser with an ultra-low lasing threshold based on a gradient-pitched cholesteric liquid crystal (CLC) polymer template. The lowest energy threshold of the laser is 16 nJ per pulse under a pumped diameter of ca. 250 μm (i.e., 0.33 μJ per pulse per mm2), a value that is superior to those of other band-edge lasers based on most dye/quantum-dot-doped CLC systems. Owing to its multiple advantages, such as high stability, ultra-low lasing threshold, wide-band and linear spatial PBG-tunability, and lasing-mode convertibility, the CLC template device can be potentially used for photonics and display applications.

原文English
頁(從 - 到)4740-4747
頁數8
期刊Journal of Materials Chemistry C
7
發行號16
DOIs
出版狀態Published - 2019

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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