Development of novel spectroscopic techniques and their application to environmental science

AEI 9

Jon E. Thompson, thompsonje@unk.edu, Department of Chemistry, University of Nebraska at Kearney, Kearney, NE 68849
My research interests lie in developing and applying novel spectroscopic methods to problems of environmental significance. Over the past few years we have worked to develop techniques in cavity enhanced spectroscopy employing broadband sources. The most notable of these employs LED's as sources for the highly sensitive technique of cavity ring-down spectroscopy.1

Additionally, we have designed and built an instrument to determine aerosol albedo - the ratio between scattering coefficient and extinction coefficient. The albedo of aerosol particles is an important variable which determines the net climatic effect of aerosols dispersed in the atmosphere.

The poster will present these recent efforts in more detail, and summarize possible future directions.

1) Thompson, J.E.; Myers, K. “Cavity Ring-Down Lossmeter Using a Pulsed Light Emitting Diode Source and Photon Counting” Meas. Sci.& Technol. 18(1), 147-154, 2007.