Abstract
We present, to the best of our knowledge, the first experimental demonstration of a new imaging system for in situ measurement of the two-dimensional (2D) distribution of the surface temperature of microscopic specimens. The main component of the system is an imaging tandem acousto-optical tunable filter (TAOTF) synchronized with a video camera. A set of TAOTF spectroscopic images (up to a few hundreds) is taken by the TAOTF imaging system to fit the measured spectral curves in each pixel to the Planck radiation function and determine the temperature and emissivity of the sample using the gray body approximation. It is experimentally shown that this technique provides aberration-free spectral imaging suitable for precise multispectral imaging radiometry (MIR).
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Bo Liu, Zhihao Yu, Cary Hill, Yujie Cheng, Daniel Homa, Gary Pickrell, and Anbo Wang
Opt. Lett. 41(18) 4405-4408 (2016)
Alexander Machikhin, Vladislav Batshev, Vitold Pozhar, Alexander Naumov, and Alexey Gorevoy
Opt. Lett. 43(5) 1087-1090 (2018)
Dmitry V. Obydennov, Konstantin B. Yushkov, and Vladimir Ya. Molchanov
Opt. Lett. 46(18) 4494-4497 (2021)