Study of the effect of temperature on thermophysical properties of ethyl myristate by dual-beam thermal lens technique

Optik ◽  
2021 ◽  
Vol 247 ◽  
pp. 168000
Author(s):  
M.R. Mohebbifar
Keyword(s):  
Thermophysical Properties ◽  
Thermal Lens ◽  
Effect Of Temperature ◽  
Dual Beam

Thermal Diffusivity Dependence with Highly Concentrated Graphene Oxide/Water Nanofluids by Mode-Mismatched Dual-Beam Thermal Lens Technique

2021 ◽  
Vol 42 (7) ◽  
Author(s):  
J. L. Jiménez-Pérez ◽  
G. López-Gamboa ◽  
J. F. Sánchez-Ramírez ◽  
Z. N. Correa-Pacheco ◽  
A. Netzahual‑Lopantzi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Thermal Diffusivity ◽  
Thermal Lens ◽  
Dual Beam

Thermal lens investigation of the Acid Blue 29 using dual beam z-scan technique

Optik ◽  
2021 ◽  
pp. 168499
Author(s):  
A. Ghanem ◽  
M.D. Zidan ◽  
M.S. EL-Daher ◽  
A. Allahham
Keyword(s):  
Thermal Lens ◽  
Dual Beam ◽  
Acid Blue

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.

Technique for Compensation of Temperature Drift in Thermal Excited Si-Based Resonant Pressure Sensor

2011 ◽  
Vol 483 ◽  
pp. 224-227 ◽  
Author(s):  
Zheng Yuan Zhang ◽  
Yong Mei ◽  
Jian Gen Li ◽  
Xiao Gang Li ◽  
Zhi Cheng Feng
Keyword(s):  
Temperature Variation ◽  
Pressure Sensor ◽  
Preliminary Test ◽  
Effect Of Temperature ◽  
Test Results ◽  
Temperature Drift ◽  
Pressure Sensing ◽  
Dual Beam ◽  
Resonant Beam ◽  
Sensor Structure

A Si-based resonant pressure sensor structure with dual-beam was proposed to solve the problem of serious temperature drift in thermal excited Si-based resonant pressure sensor. In this structure, temperature variation sensed by non-pressure-sensing resonant beam was subtracted from that sensed by pressure-sensing beam, to cancel variations of the pressure-sensing beam with temperature and compensate for temperature drift of thermal-excited Si-based resonant pressure sensor. A prototype of Si-based resonant pressure sensor with dual-beam was developed. Preliminary test results showed that the effect of temperature drift was reduced to 1/30 of the uncompensated device, greatly improving sensing accuracy of thermal excited Si-based resonant pressure sensor.

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