Determination of Verdet Constants of Organic Laser Dyes in Ethanol

POSTER

Abstract

Organic laser dyes are indespensible for dye lasers which are used to obtain unpolarized and polarized light. Verdet constant is a measure of the amount of~rotation of polarization direction of light under the application of an external magnetic field. We have measured Verdet constants of various laser dyes diluted in ethanol as a function of concentration. The Verdet constants approached that of ethanol with dilution but with a small upward systematic shift of 0.15 rad/Tm above the value measured for ethanol which is 2.85 rad/Tm. The reason for the upward systematic error is due to our reuse of the glass cells for different dyes, which in turn left a residue on the walls of the cell which we could not totally remove. This upward systematic shift is used to correct the measured values.

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Authors

  • Zhenyu Chen

    Whittier College

  • Andreas Bill

    Photonics CoE, Sciprint.org, LLNL, OSU, Imperial College London, General Atomis, UCSD, University of Milan, Instituto Superior Technico, University of Alberta, US Dept. of Agriculture, Agriculture Research Service, Parlier, CA, Dept. of Chemistry, California State University, Fresno, Dept. of Physics, California State University, Fresno, Weizmann Institute of Science, Stanford University, University of Connecticut, Storrs, UC Irvine, University of Missouri-Kansas City, California Institute of Technology, Ulm University, TU Darmstadt, UC Berkeley, GSFC, University of Regenberg, Germany, Lawrence Livermore National Laboratory, Clarendon Laboratory, Oxford, University of California, Los Angeles, Gesellschaft fuer Schwerionenforschung (GSI), Laboratoire pour l'Utilisation des Lasers Intenses, PSFC, MIT, University of California, Santa Barbara, Process Measurements Division, National Institute of Standards and Technology, Gaithersburg, MD, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, Division of Chemistry, California Institute of Technology, Pasadena, CA, Department of Physics, Fars Science and Research Center, Islamic Azad University, Texas A\&M University-Commerce, California State University, Long Beach, Materials Department, University of California Santa Barbara