Measurement of Absolute Fluorescence Quantum Yield of Basic Fuchsin Solution Using a Dual-Beam Thermal Lens Technique

2014 ◽  
Vol 24 (3) ◽  
pp. 895-898 ◽  
Author(s):  
Bini Pathrose ◽  
V. P. N. Nampoori ◽  
P. Radhakrishnan ◽  
A. Mujeeb
Keyword(s):  
Quantum Yield ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Basic Fuchsin ◽  
Dual Beam ◽  
Absolute Fluorescence

SOLVENT EFFECT ON ABSOLUTE FLUORESCENCE QUANTUM YIELD OF RHODAMINE 6G DETERMINED USING TRANSIENT THERMAL LENS TECHNIQUE

1999 ◽  
Vol 13 (16) ◽  
pp. 563-576 ◽  
Author(s):  
C. V. BINDHU ◽  
S. S. HARILAL ◽  
V. P. N. NAMPOORI ◽  
C. P. G. VALLABHAN
Keyword(s):  
Quantum Yield ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Rhodamine 6G ◽  
Excited State Absorption ◽  
Fluorescence Yield ◽  
Dual Beam ◽  
Yield Values ◽  
Transient Thermal ◽  
Absolute Fluorescence

Dual beam thermal lens technique is successfully employed for the determination of absolute fluorescence quantum yield of rhodamine 6G laser dye in different solvents. A 532 nm radiation from a Q-switched Nd:YAG laser was used for the excitation purpose. The fluorescence quantum yield values are found to be strongly influenced by environmental effects. It has been observed that fluorescence yield is greater for rhodamine 6G in ethylene glycol system than in water or in methanol. Our results also indicate that parameters like concentration of the dye solution, aggregate formation and excited state absorption affect the absolute values of fluorescence yield significantly.

Measurement of the absolute fluorescence quantum yield of rhodamine B solution using a dual-beam thermal lens technique

1996 ◽  
Vol 29 (4) ◽  
pp. 1074-1079 ◽  
Author(s):  
C V Bindhu ◽  
S S Harilal ◽  
Geetha K Varier ◽  
Riju C Issac ◽  
V P N Nampoori ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Rhodamine B ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Dual Beam ◽  
The Absolute ◽  
Absolute Fluorescence

scholarly journals Studies on Fluorescence Efficiency and Photodegradation of Rhodamine 6G Doped PMMA Using a Dual Beam Thermal Lens Technique

2002 ◽  
Vol 20 (2-4) ◽  
pp. 99-110 ◽  
Author(s):  
Achamma Kurian ◽  
Nibu A. George ◽  
Binoy Paul ◽  
V. P. N. Nampoori ◽  
C. P. G. Vallabhan
Keyword(s):  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Laser Excitation ◽  
Rhodamine 6G ◽  
Fluorescence Emission ◽  
Concentration Quenching ◽  
Dye Molecules ◽  
Dual Beam ◽  
Fluorescence Efficiency ◽  
Absolute Fluorescence

In this paper we report the use of the dual beam thermal lens technique as a quantitative method to determine absolute fluorescence quantum efficiency and concentration quenching of fluorescence emission from rhodamine 6G doped Poly(methyl methacrylate) (PMMA), prepared with different concentrations of the dye. A comparison of the present data with that reported in the literature indicates that the observed variation of fluorescence quantum yield with respect to the dye concentration follows a similar profile as in the earlier reported observations on rhodamine 6G in solution. The photodegradation of the dye molecules under cw laser excitation is also studied using the present method.

Limitation of the thermal-lens method in fluorescence quantum-yield measurements

1990 ◽  
Vol 171 (4) ◽  
pp. 347-352 ◽  
Author(s):  
A. Chartier ◽  
J. Georges ◽  
J.M. Mermet
Keyword(s):  
Quantum Yield ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield

scholarly journals Fluorescence quantum yield of Yb 3+ -doped tellurite glasses determined by thermal lens spectroscopy

2017 ◽  
Vol 63 ◽  
pp. 19-25 ◽  
Author(s):  
S.M. Lima ◽  
A.K.R. Souza ◽  
A.P. Langaro ◽  
J.R. Silva ◽  
F.B. Costa ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Tellurite Glasses ◽  
Thermal Lens Spectroscopy

scholarly journals Eclipsing thermal lens spectroscopy for fluorescence quantum yield measurement

2013 ◽  
Vol 21 (15) ◽  
pp. 18592 ◽  
Author(s):  
C. Estupiñán-López ◽  
C. Tolentino Dominguez ◽  
R. E. de Araujo
Keyword(s):  
Quantum Yield ◽  
Thermal Lens ◽  
Fluorescence Quantum Yield ◽  
Yield Measurement ◽  
Thermal Lens Spectroscopy
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