TITLE

Cholesteric liquid-crystal laser as an optic fiber-based temperature sensor

AUTHOR(S)
Moreira, M. F.; Carvalho, I. C. S.; Cao, W.; Bailey, C.; Taheri, B.; Palffy-Muhoray, P.
PUB. DATE
October 2004
SOURCE
Applied Physics Letters;10/4/2004, Vol. 85 Issue 14, p2691
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this work, we have studied the temperature dependence of a cholesteric liquid-crystal laser coupled to an optical fiber, with a view towards optical fiber sensor applications. To stabilize the laser emission, we developed a procedure to align the liquid crystal placed in the fiber. Unexpected oscillations in the laser emission were observed as the temperature was varied, which can be understood in terms of the competition between bulk and surface anchoring torques.
ACCESSION #
14713417

 

Related Articles

  • MANUFACTURERS' PRODUCT SHOWCASE.  // Laser Focus World;Jun2004, Vol. 40 Issue 6, p188 

    No abstract available.

  • Ruby laser outlasts its glory days. Wallace, John // Laser Focus World;Aug2005, Vol. 41 Issue 8, p53 

    Features the use of ruby lasers in different field of study. Modification of metal; Removal of tattoos and hair; Provision of space pulses required for double-pulse holographic interferometry. INSET: Inside Laser Focus August 1965.

  • Proper capacity control improves chiller performance. Vansumeren, Robert // Laser Focus World;Jun2004, Vol. 40 Issue 6, p161 

    No abstract available.

  • SPIE 2005 PRODUCT SHOWCASE.  // Laser Focus World;Jul2005, Vol. 41 Issue 7, p144 

    Features commercial products related to lasers and other optoelectronic devices. Introduction of the LAX-102 xenon light source from Asahi Spectra U.S.A. Inc.; Physical description of the ultra-compact CW and Q-switched lasers from Crystalaser; Features of the new OL 756 High-speed Scanning...

  • The strange world of microcavity optics. Hecht, Jeff // Laser Focus World;Aug2008, Vol. 44 Issue 8, p99 

    The article discusses the properties of optical microcavity and its significance on novel laser studies. Microcavity optics are micrometer-size resonators which could trap light on a scale comparable with its wavelength. Microcavity research has opened other topics of interest including...

  • Fiber-coupled random laser. Noginov, M. A.; Fowlkes, I. N.; Zhu, G. // Applied Physics Letters;4/18/2005, Vol. 86 Issue 16, p161105 

    We demonstrate that in fiber-coupled random laser, the threshold energy is twofold reduced and the slope efficiency is fivefold increased when the tip of the fiber is relocated from the surface to the depth of the powder volume. High absorption efficiency, 85%, and high conversion efficiency of...

  • Widely tunable ultraviolet-visible liquid crystal laser. Chanishvili, Andro; Chilaya, Guram; Petriashvili, Gia; Barberi, Riccardo; Bartolino, Roberto; Cipparrone, Gabriella; Mazzulla, Alfredo; Gimenez, Raquel; Oriol, Luis; Pinol, Milagros // Applied Physics Letters;1/31/2005, Vol. 86 Issue 5, p051107 

    Quasicontinuous tuning of a dye doped cholesteric liquid crystal (CLC) mirrorless laser in the ultraviolet-visible wavelength range is demonstrated using a single original device based on CLC as resonator and several resonant dyes. The thought is to combine the CLC pitch gradient and the...

  • Spatially tunable laser emission in dye-doped photonic liquid crystals. Yuhua Huang; Ying Zhou; Shin-Tson Wu // Applied Physics Letters;1/2/2006, Vol. 88 Issue 1, p011107 

    A spatially tunable laser emission of the dye-doped cholesteric liquid crystal (CLC) cell using a one-dimensional temperature gradient is demonstrated. The photoexcitation of dye-doped CLC device using a frequency-doubled pulsed Nd: yttrium–aluminium–garnet laser gives rise to...

  • Two-photon lasing of dye-doped photonic crystal lasers. Shirota, Koichiro; Sun, Hong-Bo; Kawata, Satoshi // Applied Physics Letters;3/8/2004, Vol. 84 Issue 10, p1632 

    We report two-photon pump lasing action of a photonic crystal laser, which comprises fluorescent dye-doped chiral nematic liquid crystals. The dye absorbs light peaking at 466 nm, while the pumping was conducted at 1000 nm wavelength. Due to redistribution of density of states by a stopping...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics