Building New Dynamic Light Scattering Spectroscopy System

POSTER

Abstract

Our goal is to construct a high resolution, versatile Light Scattering Spectroscopy Setup. When complete, this system will allow measurements with Dynamic Light Scattering and Static Light Scattering techniques, with polarized and depolarized light, several different laser wavelengths, and a wide range of scattering angles and temperatures. The first task was to get the Ar+ laser operational. A water cooling system for the laser was developed and installed. Laser bases for the Ar+ laser as well as a He-Ne laser were designed and machined. A system of mirrors that allows for a quick change from one laser to the other was added. The Ar+ laser itself was tuned for optimal output. The light scattering spectroscopy system was aligned and test experiments were run on it. The data, after collected and analyzed, was compared with the data on existing Dynamic Light Scattering setup. The new results demonstrate that both polarized and depolarized Dynamic Light Scattering experiments of high accuracy can be successfully performed at several different laser wavelengths and a range of scattering angles using the new Light Scattering Setup. Careful tests of Static Light Scattering on the new system are still needed to be performed.

Authors

  • Doug Petkie

    AFRL/RX, AFRL/RX, Systran Systems Inc, UCSD, Los Alamos National Laboratory, Ohio Northern University, BFS, Germany, Florida State University, Monmouth College, Ohio Wesleyan University, Department of Chemical and Biomolecular Engineering, The University of Akron, Physics Department, John Carroll University, Department of Chemistry, Knight Chemical Laboratories, The University of Akron, Australian National University, Miami University, Oxford, OH, University of Cincinnati, University of Findlay, Naval Research Laboratory, Washington, DC 20375, Cleveland State University, Health Sciences Dept, Cleveland State University, Physics Dept, Cleveland State University, Bucknell University, Wright State University, Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, Wright State University, Department of Physics, University of Puerto Rico, Department of Mechanical Engineer, Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB and UES, Inc., Department of Environmental Science and Policy, School of Science, Marist College, Poughkeepsie, NY 12601, USA, AFRL/711 HPW, EPA Sustainable Technology Division, University of Akron, Rose-Hulman Institute of Technology, Harvard University, LSU, Ohio University, Wittenberg University, Student

  • Kiril Streletzky

    Cleveland State University, CSU