Title

Incident Angle And Polarization Effects On The Dye-Doped Cholesteric Liquid Crystal Laser

Keywords

Cholesteric liquid crystal; Photonic bandgap; Photonic crystal laser

Abstract

Polarization effect of the pulsed pumping laser on the lasing characteristics of the dye-doped right-handed cholesteric liquid crystal (CLC) is studied at different incident angles. At a small incident angle (<18°), the CLC laser performance is independent of the polarization state of the pumping laser. As the incident angle exceeds 18°, the CLC laser emission strongly depends on the polarization state of the pumping laser. As the incident angle increases, the lasing efficiency of the CLC laser is dramatically decreased for those excited by the right-handed circularly polarized or linearly polarized laser, but barely affected by the left-handed circularly polarized laser. As the incident angle exceeds ∼31°, lasing phenomenon diminishes under the excitation of the right-handed circularly polarized laser. The lasing threshold pumped by the linearly polarized laser is ∼2× higher than that pumped by the left-handed circularly polarized laser. © 2005 Elsevier B.V. All rights reserved.

Publication Date

5-1-2006

Publication Title

Optics Communications

Volume

261

Issue

1

Number of Pages

91-96

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.optcom.2005.11.049

Socpus ID

33645887805 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33645887805

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