id author title date pages extension mime words sentence flesch summary cache txt 3x816m32x1p Joseph B Herzog Infrared Reflectivity Spectroscopy of Short Period AlGaN/GaN Superlattice Optical Phonons 2010 .txt text/plain 167 11 16 Through the examination of different AlGaN/GaN superlattice combinations, characterization of phonon energies versus material composition were obtained. Phonon characteristics were additionally measured as a function of temperature, confirming the expectation that phonon energies decrease with increasing temperature. cache/3x816m32x1p.txt txt/3x816m32x1p.txt