M. Chowdhury, Jeff F. Young, G. Sawatzky, A. Nojeh
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Broadband Infrared Hyperspectroscopy with High Spatial Resolution for the Study of Nanoscale Thermal Emitters in Vacuum
We have developed a thermal radiation (blackbody emission) hyperspectroscopy apparatus with a spectral range of ~ 1–7 µm and a spatial resolution of ~10 µm, with the sample held in an ultra-high vacuum chamber. This system enables the detailed analysis of thermal photon emission from nanomaterials/structures and temperature mapping up to thermionic electron emission temperatures under high thermal gradients and with high spectral fidelity. It is thus a useful characterization tool for studying the role of low-dimensional physics in thermal transport and emission and related phenomena such as heat localization in nanotubes.
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