Tunable liquid-crystal microshell-laser based on whispering-gallery modes and photonic band-gap mode lasing

Yuelan Lu; Yue Yang; Yan Wang; Lei Wang; Ji Ma; Lingli Zhang; Weimin Sun; Yongjun Liu

doi:10.1364/OE.26.003277

Tunable liquid-crystal microshell-laser based on whispering-gallery modes and photonic band-gap mode lasing

Yuelan Lu
, Yue Yang
, Yan Wang
, Lei Wang
, Ji Ma
, Lingli Zhang
, Weimin Sun
, Yongjun Liu^*

^*Corresponding author for this work

School of Physics

Harbin Engineering University
Kent State University

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The lasing behaviors of dye-doped cholesteric liquid crystal (DDCLC) microshells fabricated with silica-glass-microsphere coated DDCLCs were examined. Lasing characteristics were studied in a carrier medium with different refractive indices. The lasing in spherical cholesteric liquid crystals (CLCs) was attributed to two mechanisms, photonic band-gap (PBG) lasing and whispering-gallery modes (WGMs), which can independently exist by varying the chiral agent concentration and pumping energy. It was also found that DDCLC microshells can function as highly sensitive thermal sensors, with a temperature sensitivity of 0.982 nm °C⁻¹ in PBG modes and 0.156 nm °C⁻¹ in WGMs.

Original language	English
Pages (from-to)	3277-3285
Number of pages	9
Journal	Optics Express
Volume	26
Issue number	3
DOIs	https://doi.org/10.1364/OE.26.003277
State	Published - 5 Feb 2018

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title = "Tunable liquid-crystal microshell-laser based on whispering-gallery modes and photonic band-gap mode lasing",

abstract = "The lasing behaviors of dye-doped cholesteric liquid crystal (DDCLC) microshells fabricated with silica-glass-microsphere coated DDCLCs were examined. Lasing characteristics were studied in a carrier medium with different refractive indices. The lasing in spherical cholesteric liquid crystals (CLCs) was attributed to two mechanisms, photonic band-gap (PBG) lasing and whispering-gallery modes (WGMs), which can independently exist by varying the chiral agent concentration and pumping energy. It was also found that DDCLC microshells can function as highly sensitive thermal sensors, with a temperature sensitivity of 0.982 nm °C−1 in PBG modes and 0.156 nm °C−1 in WGMs.",

author = "Yuelan Lu and Yue Yang and Yan Wang and Lei Wang and Ji Ma and Lingli Zhang and Weimin Sun and Yongjun Liu",

note = "Publisher Copyright: {\textcopyright} 2018 Optical Society of America.",

year = "2018",

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doi = "10.1364/OE.26.003277",

language = "英语",

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TY - JOUR

T1 - Tunable liquid-crystal microshell-laser based on whispering-gallery modes and photonic band-gap mode lasing

AU - Lu, Yuelan

AU - Yang, Yue

AU - Wang, Yan

AU - Wang, Lei

AU - Ma, Ji

AU - Zhang, Lingli

AU - Sun, Weimin

AU - Liu, Yongjun

PY - 2018/2/5

Y1 - 2018/2/5

N2 - The lasing behaviors of dye-doped cholesteric liquid crystal (DDCLC) microshells fabricated with silica-glass-microsphere coated DDCLCs were examined. Lasing characteristics were studied in a carrier medium with different refractive indices. The lasing in spherical cholesteric liquid crystals (CLCs) was attributed to two mechanisms, photonic band-gap (PBG) lasing and whispering-gallery modes (WGMs), which can independently exist by varying the chiral agent concentration and pumping energy. It was also found that DDCLC microshells can function as highly sensitive thermal sensors, with a temperature sensitivity of 0.982 nm °C−1 in PBG modes and 0.156 nm °C−1 in WGMs.

AB - The lasing behaviors of dye-doped cholesteric liquid crystal (DDCLC) microshells fabricated with silica-glass-microsphere coated DDCLCs were examined. Lasing characteristics were studied in a carrier medium with different refractive indices. The lasing in spherical cholesteric liquid crystals (CLCs) was attributed to two mechanisms, photonic band-gap (PBG) lasing and whispering-gallery modes (WGMs), which can independently exist by varying the chiral agent concentration and pumping energy. It was also found that DDCLC microshells can function as highly sensitive thermal sensors, with a temperature sensitivity of 0.982 nm °C−1 in PBG modes and 0.156 nm °C−1 in WGMs.

UR - https://www.scopus.com/pages/publications/85041471469

U2 - 10.1364/OE.26.003277

DO - 10.1364/OE.26.003277

M3 - 文章

C2 - 29401858

AN - SCOPUS:85041471469

SN - 1094-4087

VL - 26

SP - 3277

EP - 3285

JO - Optics Express

JF - Optics Express

IS - 3

ER -

Tunable liquid-crystal microshell-laser based on whispering-gallery modes and photonic band-gap mode lasing

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