Nanosecond Time-Resolved Laser-Induced Fluorescence Spectra of Rhodamine 6G Solution in Ethanol under Shock Loading of up to 3.5 GPa

In this article, we compare absorption and temperature-dependent fluorescence spectra of five organic dyes for 2c-LIF (two-color laser-induced fluorescence) thermometry in ethanol and butanol. The dyes fluorescein, eosin Y, rhodamine B, rhodamine 6G, and sulforhodamine 101 individually mixed in ethanol and butanol were studied at liquid temperatures of 25–65 °C. The self-absorption spectral bands are analyzed along with intensity ratios and the respective sensitivities for one-dye and two-dye 2c-LIF thermometry are deduced. For one-dye 2c-LIF, rhodamine B showed the highest sensitivity of 2.93%/°C and 2.89%/°C in ethanol and butanol, respectively. Sulforhodamine 101 and rhodamine 6G showed the least sensitivities of 0.51%/°C and 1.24%/°C in ethanol and butanol, respectively. For two-dye 2c-LIF, rhodamine B/sulforhodamine 101 exhibited the highest temperature sensitivities of 2.39%/°C and 2.54%/°C in ethanol and butanol, respectively. The dye pair eosin Y/sulforhodamine 101 showed the least sensitivities of 0.15%/°C and 0.27%/°C in ethanol and butanol, respectively.

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Relative cross section and time-resolved fluorescence of porphyrin–DNA complexes

Canadian Journal of Chemistry ◽

10.1139/v91-263 ◽

1991 ◽

Vol 69 (11) ◽

pp. 1791-1795 ◽

Cited By ~ 14

Author(s):

Yixian Liu ◽

J. A. Koningstein ◽

Y. Yevdokimov

Keyword(s):

Experimental Data ◽

Cross Section ◽

Fluorescence Spectra ◽

Equilibrium Distribution ◽

Laser Induced Fluorescence ◽

Time Resolved Fluorescence ◽

Dna Complexes ◽

Time Resolved ◽

Relative Cross Section ◽

Linear Effects

Relative values have been obtained for the cross section of fluorescence of tetrakis(4-N-methylpyridyl)porphine and the zinc(II) complex with DNA. Time-resolved fluorescence spectra have been used to assign fluorescence of porphyrins which intercalate at or are externally bound to DNA. The experimental data suggest that an equilibrium distribution for intercalated and externally groove-bound to DNA of porphyrin is reached for [Formula: see text] complexes. Radiative lifetimes of the various porphyrin species have been determined and evidence is found suggesting the contribution of non-linear effects to the intensity of laser induced fluorescence of r > 1000 complexes. Key words: cross section, fluorescence, porphyrin–DNA complexes, intercalation, outside bound.

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Aqueous curium(III) phosphate species characterized by time-resolved laser-induced fluorescence spectroscopy

Radiochimica Acta ◽

10.1524/ract.2011.1878 ◽

2011 ◽

Vol 99 (12) ◽

pp. 775-782 ◽

Cited By ~ 9

Author(s):

H. Moll ◽

V. Brendler ◽

Gert Bernhard

Keyword(s):

Fluorescence Spectroscopy ◽

Laser Induced Fluorescence ◽

Time Resolved ◽

Phosphate Species

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Measurements of the Collisionally Quenched Lifetime of CO in Hydrocarbon Flames

Applied Spectroscopy ◽

10.1366/0003702944029514 ◽

1994 ◽

Vol 48 (9) ◽

pp. 1118-1124 ◽

Cited By ~ 17

Author(s):

Sara Agrup ◽

Marcus Aldén

Keyword(s):

Laser Induced Fluorescence ◽

Polyaromatic Hydrocarbon ◽

Time Decay ◽

Collisional Quenching ◽

Time Resolved ◽

Hydrocarbon Flames ◽

Effective Lifetime ◽

Ethylene Flame ◽

Oxygen Flame ◽

Different Parts

Time-resolved laser-induced fluorescence (LIF) from CO molecules in hydrocarbon flames was studied. Collisional quenching constants were evaluated on the basis of the exponential decays. Effective lifetime in a methane/oxygen flame was observed to vary between 250 and 400 ps depending on the position within the flame, and from 400 to 600 ps in the non-sooty parts of an ethylene/air flame. Fluorescence, constituting simultaneous spatially and temporally resolved decays, was also registered from various sections along a laser beam that probed different parts of the flame. Spectral recordings revealed not only the expected CO peaks but also, in the ethylene flame, laser-induced emission from C2 Swan bands and from polyaromatic hydrocarbon (PAH) emission that affected the fluorescence time decay in the sooty part of the flame.

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