Sam Broderick

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This page documents my research activities. Eventually it will also contain pictures and data

Resonant Light Scattering in Composite Media due to Reststrahlen Effects.

• My first first research project in collaboration with Prof. James T. McWhirter and Prof. Gerado A. Rogdriguez.
• A summary of our findings:
  • A relatively inexpensive composite sample preparation technique with Teflon and LDPE (Low Density Polyethylene) as host matrices that permit study of inclusions in transmission in the Far Infrared.
  • LDPE is superior to Teflon as a matrix (more transmissive over a wider range).
  • Increased detail in LDPE transmission spectra compared to reflection and thin film transmission studies for bulk samples.
  • Absortpion features associated with reststrahlen effects shifted to frequencies lower than expected for bulk crystals.
  • Additional features were also observed. Explanations are being investigated.
• Equipment used included:
  • A Bomem DA-8 FTIR (Fourier Transform InfraRed) Spectrometer.
  • A Janis LHe Optical Access Cryostat.
  • A LHe cooled solid state bolometer.
  • A Graseby-Specac 13mm pellet die and a hydraulic press.
  • A Spex freezer mill.
• Alkali halide inclusions studied:
  • Potassium bromide (KBr)
  • Potassium chloride (KCl)
  • Potassium iodide (KI)
  • Sodium chloride (NaCl)
• More to come soon.

You can contact me via e-mail: broderis@virtual.union.edu .

An alternate email address: waveman@phys.stud.ethz.ch .

Last revised 5/23/96
Created: 4/23/96

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