A molecular thermometer operates near absolute zero
October 20, 2023• Physics 16, 182 The new thermometer allows thermal mapping of surfaces with microscopic resolution and enables studies of heat flow through materials at cryogenic temperatures. How hot was it? A laser beam (yellow) heats a patterned silicone membrane, while another beam (red) excites a dibenzotrilene (DBT) molecule encapsulated in a crystal placed on the membrane. The…
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