My largest research project is the cooling of solids using laser light.

Recently I have become interested in organic light-emitting diodes (OLEDs). I have written a review of luminescence quantum efficiency measurements and a brief note about luminance cameras. You might also tease yourself with the following optics quiz.

Additionally, I am interested in how rough surfaces scatter light into various directions and polarization states. I have written a long review of the literature on this topic, as well as a description of some measurements I have performed on lidar targets and building materials.

I have also been doing projects on energy transfer between solid-state impurities and on photoconductivity of thin films. These involve students and colleagues at the Naval Research Lab, the University of West Florida, Los Alamos National Lab, Eglin Air Force Base, and the University of Georgia.

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