The strongly temperature-dependent band-edge absorption from gallium arsenide enables an optical thermometer with nanokelvin temperature resolution and microscale spatial resolution.

中文翻译：

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半导体产生灵敏的测温

砷化镓的强烈温度依赖性带边吸收使光学温度计具有纳米开尔文温度分辨率和微尺度空间分辨率。