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Laser-Induced Fluorescence Spectroscopy
Gastrointestinal Endoscopy Clinics of North America, 1994Lasers have been a part of medicine and surgery since the late 1960s. In the past 5 years, however, there has been growing interest in using lasers as diagnostic devices, an area of research that has been termed optical diagnostics. Optical diagnostic techniques seek to provide diagnostic information about tissue by using light in a probing, yet ...
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2014
The basic principle of laser-induced fluorescence and fluorescence spectroscopy is presented to detect organic molecules with high sensitivity. We present various variants of this method: fluorescence correlation spectroscopy, fluorescence polarization spectroscopy, time-resolved fluorescence analysis.
Axel Donges, Reinhard Noll
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The basic principle of laser-induced fluorescence and fluorescence spectroscopy is presented to detect organic molecules with high sensitivity. We present various variants of this method: fluorescence correlation spectroscopy, fluorescence polarization spectroscopy, time-resolved fluorescence analysis.
Axel Donges, Reinhard Noll
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Laser scanning fluorescence microscopy
Applied Optics, 1987Fluorescence laser scanning microscopy (LSM) offers many advantages over conventional fluorescence microscopy. Very strong excitation light can be concentrated on small spots (0.5 microm) of the specimen, enabling the detection of low concentrations of fluorescent substances.
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Laser induced fluorescence emission (LIFE)
Analytical Biochemistry, 1971Abstract The authors used an ultraviolet laser as an excitation source to obtain fluorescence spectra from 4 μl of solution, or 0.1 μl equivalent of powder. A sensitivity of 0.1 part per trillion quinine sulfate was obtained. The system was sufficiently sensitive to detect Raman shifts.
R, Jankow +3 more
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Utility of Radiology, Laser Fluorescence, and Transillumination
Dental Clinics of North America, 2005This article provides readers with an overview of the latest developments in caries detection using radiology, laser fluorescence, and transillumination. Different imaging techniques, methods to assess diagnostic accuracy, and factors affecting the diagnostic accuracy of imaging in film and digital receptors are discussed.
Jie, Yang, Vinicius, Dutra
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Laser-induced fluorescence of the CH2CFO radical
The Journal of Chemical Physics, 1997A new laser-induced fluorescence spectrum has been observed in the region of 307–335 nm. Since this spectrum is observed when reacting oxygen atoms with CH2CHF, or CH2CF2, or CH2CFCl and also by photolysis of CH3CFO, the fluorescing molecule is the CH2CFO (fluoroformyl methyl) radical.
Satoshi Inomata +4 more
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Journal of Non-Crystalline Solids, 1982
Abstract Measurements of both broadband-excited and laser-excited fluorescence are required to model the performance of glass lasers. In the small-signal gain regime, measurements of absorption and fluorescence spectra and fluorescence decay are sufficient; in the large-signal gain regime, additional measurements of the site-to-site differences in ...
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Abstract Measurements of both broadband-excited and laser-excited fluorescence are required to model the performance of glass lasers. In the small-signal gain regime, measurements of absorption and fluorescence spectra and fluorescence decay are sufficient; in the large-signal gain regime, additional measurements of the site-to-site differences in ...
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Laser Induced Fluorescence Spectroscopy of IrN
Chinese Journal of Chemical Physics, 2009High resolution laser induced fluorescence spectra of IrN in the spectral region between 394 and 520 nm were recorded using laser vaporization/reaction free jet expansion and laser induced fluorescence spectroscopy. Seven new vibronic transition bands were observed and analyzed. Two = 1 and five = 0 new states were identified.
Pang, HF, Cheung, ASC
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2003
Laser induced fluorescence (LIF) is a technique where the emission is created by external light stimulation. The relaxation of the excited states yields photons of specific wavelengths that can be used to identify various species in the plasma. A schematic diagram of the laser induced fluorescence is shown in Fig. 18.
Francis F. Chen, Jane P. Chang
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Laser induced fluorescence (LIF) is a technique where the emission is created by external light stimulation. The relaxation of the excited states yields photons of specific wavelengths that can be used to identify various species in the plasma. A schematic diagram of the laser induced fluorescence is shown in Fig. 18.
Francis F. Chen, Jane P. Chang
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Annual Review of Physical Chemistry, 1977
area of science. The laser's unique capacity to deliver large amounts of energy within extraordinarily small ranges of spectral width and directionality has made possible many kinds of mea surement that would othe rwise have been quite impossible, Wavelength tunability has proved to be an especially important advance that has not only revolutioniz ed ...
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area of science. The laser's unique capacity to deliver large amounts of energy within extraordinarily small ranges of spectral width and directionality has made possible many kinds of mea surement that would othe rwise have been quite impossible, Wavelength tunability has proved to be an especially important advance that has not only revolutioniz ed ...
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