Hydrogel Fluorescence Microsensor with Fluorescence Recovery for Prolonged Stable Temperature Measurements

Diode laser atomic fluorescence temperature measurements in low-pressure flames

Temperature measurements have been performed in a low-pressure flame by the technique of diode laser induced atomic fluorescence. The experiments were done in a near-stoichiometric flat-flame of premixed methane, oxygen and nitrogen, at a pressure of 5.3 kPa. Indium atoms were seeded to the flame and probed using blue diode lasers; the lineshapes of the resulting fluorescence spectra were used ...

Measurements and modeling of acetone laser-induced fluorescence with implications for temperature-imaging diagnostics.

Recent determinations of the temperature dependence of acetone fluorescence have permitted the application of acetone planar laser-induced fluorescence imaging, which was already popular for mapping concentration, to the measurement of temperature. With a view toward developing temperature-imaging diagnostics, we present atmospheric-pressure fluorescence and absorption results acquired with exc...

In vivo chlorophyll fluorescence measurements

Double-pulse fluorescence lifetime measurements

A. H. BUIST,* M. MÜLLER,* E. J. GIJSBERS,* G. J. BRAKENHOFF,* T. S. SOSNOWSKI,† T. B. NORRIS† & J. SQUIER‡ *BioCentrum Amsterdam, University of Amsterdam, Department of Molecular Cytology, Kruislaan 316, 1098 SM Amsterdam, The Netherlands †Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Blvd, IST Building, Ann Arbor, MI 48109–2099, U.S.A. ‡Department of Electrical a...

Coumarin 545: an emission reference dye with a record-low temperature coefficient for ratiometric fluorescence based temperature measurements.

The emission intensities of coumarin 545 solution exhibit a low temperature dependence, with a record-low temperature coefficient of only ∼0.025% per °C. This monomer-aggregate coupled fluorescence system can be used for ratiometric temperature measurements with high spatial and temporal resolutions; three different working modes have been demonstrated.