E20: A Practical Introduction to Infrared, Raman, and Near Infrared Spectroscopy

One-Day Course 
Date to be announced; 8:30am – 5:00pm

Dr. James A. de Haseth, Light Light Solutions, Athens, GA

This one-day short course will present the origins of spectral bands in Infrared, Raman, and NIR spectroscopy. This will start with a discussion of the fundamental vibrations in mid-infrared and Raman spectra and explain how overtone and combination bands can appear in the NIR as well as in mid-infrared and Raman spectra.  Some direct guidelines will be presented to show which transitions are allowed.  This will not be a theoretical discussion, but rather an understanding of the physical phenomena that led to the development of the mathematical approaches.  Further topics include instrumental issues such as resolution, instrumental effects on spectral lineshape, and effects of mathematical manipulation of spectra.

This course is designed for scientists and engineers new to vibrational spectroscopy as well as practitioners who need a stronger understanding of vibrational spectra.  The focus of the course is on spectra and what information they convey.  The information content of the spectra will be explored.  The course is designed to help understand the benefits and limitations of the different spectrometries, including how to select the appropriate spectrometry to investigate specific problems and how information from more than one technique can expand the usefulness vibrational spectrometry.

1. Introduction to Mid-Infrared, Raman, and Near-Infrared Spectra
2. Fundamental Bands Versus Fingerprint Bands
3. First and Second Order Coupling
4. Overtone and Combination Bands
5. Overview of Allowed Transitions in Mid-Infrared Spectra
6. Overview of Allowed Transitions in Raman Spectra
7. Overview of Allowed Transitions in Near-Infrared Spectra
8. Effects of Resolution on Spectra
9. Spectral Lineshape
10.  Mathematical Manipulations of Spectral Data

Dr. James de Haseth, Emeritus Professor of Chemistry, University of Georgia.  He is currently an instructor with Infrared and Raman Courses, a not-for-profit organization devoted to education spectroscopists.  Dr de Haseth is also Technical Officer of LLS Instruments, a manufacturer of near infrared spectrometers for process control.  He has more than 45 years’ experience with vibrational spectroscopy, spectrometric instrumentation, interpretation of vibrational spectra, mathematical processing of spectral data, development of new spectral techniques and algorithms, and vibrational spectroscopy to study protein conformation.  Dr de Haseth is a Distinguished Service Awardee and Fellow of the Society for Applied Spectroscopy, and Honorary member of the Coblentz Society, and a member of the American Chemical Society, as well as a member of the Council for Near Infrared Spectroscopy.