Unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal with a birefringence gradient

Chia-Rong Lee, Shih Hung Lin, Jia De Lin, Ting Shan Mo, Chie Tong Kuo, Shuan Yu Huang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The present study develops and investigates for the first time a unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal (DDCLC) film with an LC-birefringence (Dn) gradient. A continuous Dn variation can be generated in a cell by diffusion and self-organization of CLC after four DDCLC mixtures with a discrete variation of Dn are successively injected into an empty cell. Not only the CLC photonic structure but also the lasing wavelength and the cone angle of the obtained conically symmetric emitted lasing ring can be tuned continuously by continuously changing the pumped position of the cell with an Dn gradient. The continuous tunabilities in the lasing wavelength and the corresponding emitted cone angle of the lasing ring are 605.8 → 568.1 nm and 29° → 50°, respectively, within a spatial interval of about 33 mm in the cell.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume109
Issue number1
DOIs
Publication statusPublished - 2012 Oct 1

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doped crystals
birefringence
lasing
cones
dyes
liquid crystals
gradients
cells
lasers
rings
wavelengths
photonics
intervals

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Lee, Chia-Rong ; Lin, Shih Hung ; Lin, Jia De ; Mo, Ting Shan ; Kuo, Chie Tong ; Huang, Shuan Yu. / Unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal with a birefringence gradient. In: Applied Physics B: Lasers and Optics. 2012 ; Vol. 109, No. 1. pp. 159-163.
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Unique spatial continuously tunable cone laser based on a dye-doped cholesteric liquid crystal with a birefringence gradient. / Lee, Chia-Rong; Lin, Shih Hung; Lin, Jia De; Mo, Ting Shan; Kuo, Chie Tong; Huang, Shuan Yu.

In: Applied Physics B: Lasers and Optics, Vol. 109, No. 1, 01.10.2012, p. 159-163.

Research output: Contribution to journalArticle

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