Band-gap-tailored random laser

Hongbo Lu, Jian Xing, Cheng Wei, Jiangying Xia, Junqing Sha, Yunsheng Ding, Guobing Zhang, Kang Xie, Longzhen Qiu, Zhijia Hu*

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A band-gap-tailored random laser with a wide tunable range and low threshold through infrared radiation is demonstrated. When fluorescent dyes are doped into the liquid crystal and heavily doped chiral agent system, we demonstrate a wavelength tuning random laser instead of a side-band laser, which is caused by the combined effect of multi-scattering of liquid crystal (LC) and band-gap control. Through rotating the infrared absorbing material on the side of the LC cell, an adjustable range for random lasing of 80 nm by infrared light irradiation was observed.

Original languageEnglish
Pages (from-to)390-395
Number of pages6
JournalPhotonics Research
Volume6
Issue number5
Early online date13 Feb 2018
DOIs
Publication statusPublished - 18 Apr 2018

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Liquid Crystals
Liquid crystals
Energy gap
liquid crystals
Infrared radiation
Lasers
lasers
infrared radiation
Fluorescent Dyes
lasing
Dyes
Tuning
dyes
tuning
Irradiation
Scattering
Wavelength
irradiation
thresholds
cells

Bibliographical note

© 2018 Chinese Laser Press

Cite this

Lu, H., Xing, J., Wei, C., Xia, J., Sha, J., Ding, Y., ... Hu, Z. (2018). Band-gap-tailored random laser. Photonics Research, 6(5), 390-395. https://doi.org/10.1364/PRJ.6.000390
Lu, Hongbo ; Xing, Jian ; Wei, Cheng ; Xia, Jiangying ; Sha, Junqing ; Ding, Yunsheng ; Zhang, Guobing ; Xie, Kang ; Qiu, Longzhen ; Hu, Zhijia. / Band-gap-tailored random laser. In: Photonics Research. 2018 ; Vol. 6, No. 5. pp. 390-395.
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Lu, H, Xing, J, Wei, C, Xia, J, Sha, J, Ding, Y, Zhang, G, Xie, K, Qiu, L & Hu, Z 2018, 'Band-gap-tailored random laser', Photonics Research, vol. 6, no. 5, pp. 390-395. https://doi.org/10.1364/PRJ.6.000390

Band-gap-tailored random laser. / Lu, Hongbo; Xing, Jian; Wei, Cheng; Xia, Jiangying; Sha, Junqing; Ding, Yunsheng; Zhang, Guobing; Xie, Kang; Qiu, Longzhen; Hu, Zhijia.

In: Photonics Research, Vol. 6, No. 5, 18.04.2018, p. 390-395.

Research output: Contribution to journalArticle

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AU - Xie, Kang

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AU - Hu, Zhijia

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Lu H, Xing J, Wei C, Xia J, Sha J, Ding Y et al. Band-gap-tailored random laser. Photonics Research. 2018 Apr 18;6(5):390-395. https://doi.org/10.1364/PRJ.6.000390