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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 2 — Jan. 18, 2010
  • pp: 575–581

Single-mode laser tuning from cholesteric elastomers using a “notch” band-gap configuration

Francesca Serra, Mario Ariosto Matranga, Yan Ji, and Eugene M. Terentjev  »View Author Affiliations

Optics Express, Vol. 18, Issue 2, pp. 575-581 (2010)

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The interest in the application of cholesteric liquid crystals for tunable lasers has risen in the past few years. Here, we want to obtain a mechanically tunable laser device using cholesteric liquid crystal (CLC) elastomers as resonant cavity mirrors in a three-layer configuration, which includes in between an isotropic layer incorporating a laser dye as active medium. The transmission band-gap of the two CLC elastomers was shifted one with respect to the other in order to create a defect (“notch”) in the middle of the band-gap which allowed a single-mode lasing from the system. The wavelength of the laser could be changed by mechanical tuning of the rubbery device.

© 2010 Optical Society of America

OCIS Codes
(160.3380) Materials : Laser materials
(230.3720) Optical devices : Liquid-crystal devices
(300.6550) Spectroscopy : Spectroscopy, visible
(160.1585) Materials : Chiral media
(160.5293) Materials : Photonic bandgap materials

ToC Category:

Original Manuscript: October 28, 2009
Revised Manuscript: December 18, 2009
Manuscript Accepted: December 18, 2009
Published: January 4, 2010

Francesca Serra, Mario Ariosto Matranga, Yan Ji, and Eugene M. Terentjev, "Single-mode laser tuning from cholesteric elastomers using a “notch” band-gap configuration," Opt. Express 18, 575-581 (2010)

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