University of Washington researchers used an infrared laser to cool a solid semiconductor material -- labeled here as "cantilever" -- by at least 20 degrees C, or 36 F, below room temperature.
CW-DFB (continuous-wave distributed feedback); FC (fibre collimator); PD (photodetector); QTF (quartz tuning fork); SMF (single-mode fibre). Power and wavelength response of H-LITES sensor based on ...
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