Dr. Andy Sommer
Miami University

"Molecular Microspectroscopy and Evanescent Wave Spectroscopy"

ABSTRACT

Molecular Microspectroscopy allows one to collect infrared and Raman spectra from samples whose size approaches the wavelength being employed for analysis. As such the methods are ideal for small particle identification and find use in defect analysis and forensics. Fundamentals for each method will be provided and specific examples will be given which show the methods versatility. The last part of the presentation will focus on evanescent wave spectroscopy which allows both infrared and Raman microspectroscopy to interrogate femto-liter volume elements of the samples being studied.