Color cone lasing emission in a dye-doped cholesteric liquid crystal with a single pitch

C. R. Lee, S. H. Lin, H. C. Yeh, T. D. Ji, K. L. Lin, T. S. Mo, C. T. Kuo, K. Y. Lo, S. H. Chang, Andy Y.G. Fuh, S. Y. Huang

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

This work investigates a novel color cone lasing emission (CCLE) based on a one-dimensional photonic crystal-like dye-doped cholesteric liquid crystal (DDCLC) film with a single pitch. The lasing wavelength in the CCLE is distributed continuously at 676.7-595.6 nm, as measured at a continuously increasing oblique angle relative to the helical axis of 0-50°. This work demonstrates that lasing wavelength coincides exactly with the wavelength at the long wavelength edge of the CLC reflection band at oblique angles of 0-50°. Simulation results of dispersion relations at different oblique angles using Berreman's 4×4 matrix method agrees closely with experimental results. Some unique and important features of the CCLE are identified and discussed.

Original languageEnglish
Pages (from-to)12910-12921
Number of pages12
JournalOptics Express
Volume17
Issue number15
DOIs
Publication statusPublished - 2009 Jul 20

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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