Red/blue spectral shifts of laser-induced fluorescence emission due to different nanoparticle suspensions in various dye solutions

2014 ◽  
Vol 53 (24) ◽  
pp. 5398 ◽  
Author(s):  
A. Bavali ◽  
P. Parvin ◽  
S. Z. Mortazavi ◽  
M. Mohammadian ◽  
M. R. Mousavi Pour
Keyword(s):  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
Spectral Shifts ◽  
Nanoparticle Suspensions ◽  
Dye Solutions

Laser induced fluorescence emission (LIFE)

1971 ◽  
Vol 43 (1) ◽  
pp. 300-304 ◽  
Author(s):  
R. Jankow ◽  
O. Kilham ◽  
W. Renken ◽  
R. Bender
Keyword(s):  
Fluorescence Emission ◽  
Laser Induced Fluorescence

Angular distribution of laser-induced fluorescence emission of active dyes in scattering media

2017 ◽  
Vol 57 (7) ◽  
pp. B32 ◽  
Author(s):  
Ali Bavali ◽  
Parviz Parvin ◽  
Mohammad Tavassoli ◽  
Mohammad Reza Mohebbifar
Keyword(s):  
Angular Distribution ◽  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
Scattering Media

scholarly journals Laser-Induced Fluorescence Emission (L.I.F.E.) as Novel Non-Invasive Tool for In-Situ Measurements of Biomarkers in Cryospheric Habitats

10.3791/60447 ◽  
2019 ◽  
Author(s):  
Klemens Weisleitner ◽  
Lars Hunger ◽  
Christoph Kohstall ◽  
Albert Frisch ◽  
Michael C. Storrie-Lombardi ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
In Situ Measurements ◽  
Non Invasive

Spectroscopic Studies of the Interaction of 1,4-Diphenyl-1,3-Butadiene with α-, β-, and γ-Cyclodextrins

1997 ◽  
Vol 51 (2) ◽  
pp. 153-159 ◽  
Author(s):  
Arsenio Muñoz de la Peña ◽  
Rezik A. Agbaria ◽  
Montserrat Sánchez Peña ◽  
Isiah M. Warner
Keyword(s):  
Fluorescence Emission ◽  
Spectroscopic Studies ◽  
Visible Absorption ◽  
Spectral Shifts ◽  
Equilibrium Reaction ◽  
High Anisotropy ◽  
Spectroscopic Characteristics ◽  
Uv Visible ◽  
High Absorption ◽  
Absorption Measurements

Steady-state fluorescence, anisotropy, and UV-visible absorption measurements have been used to investigate the structure and spectroscopic characteristics of the complexes formed by trans, trans-1,4-diphenyl-1,3-butadiene (DPB) with α-, β-, and γ-cyclodextrins (CDs). The behavior of α-CD with DPB is very different from that of DPB with respect to β-CD or γ-CD. In the presence of α-CD, clear solutions with high absorption and fluorescence emission, relatively high anisotropy, a rapid equilibrium reaction, and Benesi–Hildebrand plots lead us to conclude that normal 2:1 inclusion compounds are formed. In the presence of γ-CD, turbid solutions, with absorption and fluorescence emission intensities lower than those in α-CD, higher values of anisotropy, slow equilibrium reaction, and spectral shifts to the red in the absorption, excitation, and emission wavelengths are evidence of the formation of extended linear aggregates. In the presence of β-CD, both mechanisms of inclusion appear to be present.

Laser-Induced Fluorescence Emission (L.I.F.E.): Searching for Mars Organics with a UV-Enhanced PanCam

Astrobiology ◽  
2009 ◽  
Vol 9 (10) ◽  
pp. 953-964 ◽  
Author(s):  
Michael C. Storrie-Lombardi ◽  
Jan-Peter Muller ◽  
Martin R. Fisk ◽  
Claire Cousins ◽  
Birgit Sattler ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Laser Induced Fluorescence

L.I.F.E.: laser induced fluorescence emission, a non-invasive tool to detect photosynthetic pigments in glacial ecosystems

2011 ◽  
Author(s):  
Markus Tilg ◽  
Michael Storrie-Lombardi ◽  
Christoph Kohstall ◽  
Andreas Trenkwalder ◽  
Roland Psenner ◽  
...  
Keyword(s):  
Photosynthetic Pigments ◽  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
Non Invasive

Measurement of Temperatures on In-Flight Water Droplets by Laser Induced Fluorescence Thermometry

2003 ◽  
Author(s):  
V. Salazar ◽  
J. E. Gonza´lez ◽  
L. A. Rivera
Keyword(s):  
Temperature Distribution ◽  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
Numerical Results ◽  
Temperature Measurements ◽  
Water Droplets ◽  
Fluorescence Dye ◽  
Instantaneous Temperature ◽  
Natural Fluorescence ◽  
Fluorescence Thermometry

This work presents the use of laser induced fluorescence for instantaneous temperature measurements of a 200μm diameter water droplets monodispersed stream traveling downward in a standard stagnant atmosphere. The droplets are doped with small concentrations of a natural fluorescence dye (Pyrene), and with a surfactant substance, cetyldimetylbenzylammoniumchloride (CDBAC) to improve the fluorescence emission. The rate of the two-band pyreme emission (excimer to monomer) is used to determine the temperature. The temperature distribution along the stream of droplets determined for different initial temperatures: (30°C, 40°C and 50°C) at the exit of the nozzle compared very favorably with numerical results.

Measurement of Temperatures on In-Flight Water Droplets by Laser Induced Fluorescence Thermometry

2004 ◽  
Vol 126 (2) ◽  
pp. 279-285 ◽  
Author(s):  
V. M. Salazar ◽  
J. E. Gonza´lez ◽  
L. A. Rivera
Keyword(s):  
Temperature Distribution ◽  
Fluorescence Emission ◽  
Laser Induced Fluorescence ◽  
Temperature Measurements ◽  
Water Droplets ◽  
Band Emission ◽  
Fluorescence Dye ◽  
Instantaneous Temperature ◽  
Natural Fluorescence ◽  
Fluorescence Thermometry

This work presents the use of laser induced fluorescence for instantaneous temperature measurements of 200 μm water droplets in a monodisperse stream while traveling downward in a standard stagnant atmosphere. The droplets are doped with small concentrations of a natural fluorescence dye (Pyrene), and with a surfactant substance, cetyldimetylbenzylammoniumchloride (CDBAC) to improve the fluorescence emission and the rate of its two band emission (excimer to monomer) is used to determine the temperature. The temperature distribution along the stream of droplets was determined for three different initial temperatures: 30°C, 40°C, and 50°C at the exit of the nozzle and it is compared very favorably with numerical results.

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