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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 4 — Apr. 1, 2013
  • pp: 519–526

Low-voltage-modulated laser based on dye-doped polymer stabilized cholesteric liquid crystal

Bo-wei Liu, Zhi-gang Zheng, Xu-chang Chen, and Dong Shen  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 4, pp. 519-526 (2013)

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An electrically-modulated laser was fabricated based on cholesteric liquid crystal photonic band gap. To lower the modulation voltage, the nematic liquid crystals with high dielectric constant was selected, and thus, the emission energy can be modulated with a voltage of less than 10 V. Polymer stabilization was carried out to obtain a stable and switchable helical liquid crystal system. It is noteworthy that visible light initiation system was adopted to prevent the deformation of photonic band gap. The monomer concentration effects on lasing performances were studied and discussed. The results indicate that the laser emission threshold is decreased and the response time is shortened with the increasing of monomer, while the hysteresis may be enhanced. This study provides some new insights into the fabrication, materials improvements and performances of dye-doped liquid crystal laser, and such electrically modulated laser will be a prospective candidate in the laser displays, micro-light-source or the other optical systems.

© 2013 OSA

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Liquid Crystals

Original Manuscript: February 13, 2013
Revised Manuscript: March 15, 2013
Manuscript Accepted: March 16, 2013
Published: March 28, 2013

Bo-wei Liu, Zhi-gang Zheng, Xu-chang Chen, and Dong Shen, "Low-voltage-modulated laser based on dye-doped polymer stabilized cholesteric liquid crystal," Opt. Mater. Express 3, 519-526 (2013)

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