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Updated: Jul 5, 2026

Single Molecule Fluorescence Microscopy on Planar Supported Bilayers
Published on: October 31, 2015
Two-color planar laser-induced fluorescence thermometry in aqueous solutions
G Andrew Robinson1, Robert P Lucht, Normand M Laurendeau
1School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA.
Abstract:
We demonstrate a two-color planar laser-induced fluorescence technique for obtaining two-dimensional temperature images in water. For this method, a pulsed Nd:YAG laser at 532 nm excites a solution of temperature-sensitive rhodamine 560 and temperature-insensitive sulforhodamine 640. The resulting emissions are optically separated through filters and detected via a charged-couple device (CCD) camera system. A ratio of the two images yields temperature images independent of incident irradiance. An uncertainty in temperature of +/- 1.4 degrees C is established at the 95% confidence interval.

