Reduced-Threshold Emission of Capillary Filled by Doped-Dye Cholesteric Liquid Crystals With Photo-Alignment Polyimide Films

Yue-Lan Lu; Xiang-Bao Yin; Zuo-Ren Xiong; Yue Yang; Wei-Min Sun; Yong-Jun Liu

doi:10.1109/JPHOT.2018.2795106

IEEE Photonics Journal (Jan 2018)

Reduced-Threshold Emission of Capillary Filled by Doped-Dye Cholesteric Liquid Crystals With Photo-Alignment Polyimide Films

Yue-Lan Lu,
Xiang-Bao Yin,
Zuo-Ren Xiong,
Yue Yang,
Wei-Min Sun,
Yong-Jun Liu

Affiliations

Yue-Lan Lu: Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Xiang-Bao Yin: Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Zuo-Ren Xiong: Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Yue Yang: Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Wei-Min Sun: Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China
Yong-Jun Liu: ORCiD; Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin, China

DOI: https://doi.org/10.1109/JPHOT.2018.2795106
Journal volume & issue: Vol. 10, no. 1
pp. 1 – 7

Abstract

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A microcavity laser is reported using dye-doped cholesteric liquid crystals (CLCs) filled in a glass capillary with photo-alignment polyimide films. This laser runs based on the properties that a CLC has a refractive index much higher than that of glass, so whispering-gallery-mode (WGM) laser and distributed-feedback-mode lasers are included in the emission spectrum. We obtain a low threshold energy of 4.5 μJ · pulse-1 · mm-2, establish the shift of 3.04 nm of the WGMs in the temperature range 43-48 °C, and investigate electric field tunability.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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