Temperature Dependence of Laser-Induced Fluorescence Intensity of Hydrocarbon Fluorescent Materials Mixed with Gases

Verneuil sapphire was purified of Cr3+ by containerless melting and processing at ca. 2550 K in argon, dry air, and pure oxygen. Recovered material was examined by laser induced fluorescence and Raman spectroscopy. The Cr3+ fluorescence intensity decreased in processed specimens at rates proportional to the chromium concentration and p(O2)0.21. The initial chromium concentration was ca. 5 ppm and decreased by factors of ca. 50, 3000, and 2 × 105 after processing for 300 s in argon, air, and oxygen, respectively. Evidence is presented that the Cr3+ was removed predominantly as CrO2(g) and not by conversion to other oxidation states of chromium in the condensed phase.

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Analyzing the effect of the incidence angle on chlorophyll fluorescence intensity based on laser-induced fluorescence lidar

Optics Express ◽

10.1364/oe.27.012541 ◽

2019 ◽

Vol 27 (9) ◽

pp. 12541 ◽

Cited By ~ 6

Author(s):

Jian Yang ◽

Yinjia Cheng ◽

Lin Du ◽

Wei Gong ◽

Shuo Shi ◽

...

Keyword(s):

Chlorophyll Fluorescence ◽

Fluorescence Intensity ◽

Incidence Angle ◽

Laser Induced Fluorescence

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Relationship between the wavelength maximum of a protein and the temperature dependence of its intrinsic tryptophan fluorescence intensity

European Biophysics Journal ◽

10.1007/s00249-010-0601-3 ◽

2010 ◽

Vol 39 (10) ◽

pp. 1445-1451 ◽

Cited By ~ 7

Author(s):

Komal Saini ◽

Shashank Deep

Keyword(s):

Temperature Dependence ◽

Fluorescence Intensity ◽

Tryptophan Fluorescence ◽

Intrinsic Tryptophan Fluorescence

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The Significance of the Temperature Dependence of Fluorescence Intensity

Journal of The Electrochemical Society ◽

10.1149/1.2428016 ◽

1961 ◽

Vol 108 (1) ◽

pp. 78 ◽

Cited By ~ 6

Author(s):

C. H. Haake

Keyword(s):

Temperature Dependence ◽

Fluorescence Intensity

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Investigation of Optical Spectroscopic Properties on Fluorescent Creams

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.848.72 ◽

2016 ◽

Vol 848 ◽

pp. 72-75

Author(s):

Saksit Sukprasong ◽

Apichart Limpichaipanit ◽

Athipong Ngamjarurojana

Keyword(s):

Fiber Optics ◽

Fluorescence Spectra ◽

Laser Excitation ◽

Color Space ◽

Spectroscopic Properties ◽

Laser Induced Fluorescence ◽

Color Management ◽

Fluorescence Technique ◽

Uv Laser ◽

Fluorescent Materials

The optical spectroscopic properties of fluorescent materials were investigated using laser induced fluorescence technique. The fluorescent creams were used in this research. The sample materials were illuminated by UV laser excitation source. Then, the fluorescence spectra were recorded and analyzed by fiber optics spectrometer complied with the CIE 1931 XYZ color space which is essential for color management. The result showed that the characteristics of fluorescence spectra such as intensity, wavelength position and bandwidth in each fluorescent creams exhibited distinct characteristics in each species.

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