期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 81, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3499503
关键词
m
资金
- Deutsche Forschungsgemeinschaft [SFB 767]
We report on a contactless, all-optical method to derive thermal properties of 340 nm thin, 640 X 640 mu m(2) wide, freestanding silicon membranes. Exploiting the temperature dependent optical transmissivity of 4 X 10(-3)/K between 300 and 470 K, we are able to measure the temperature of the membrane with millikelvin thermal, micrometer lateral, and nanosecond temporal resolution. Experiments such as the decay of a transient thermal grating with spacings between 5 and 30 mu m, measured in first order of diffraction, as well as heat diffusion in a statically heated membrane are reported in this letter. For the latter case an example of a nanostructured membrane by means of focused ion beam milling is given. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3499503]
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