Experimental investigation of new concentration measurements using nonlinear dynamics through laser-induced thermal lens oscillation

1996 ◽  
Vol 35 (18) ◽  
pp. 3223 ◽  
Author(s):  
Masaru Todoriki ◽  
Atsuyuki Suzuki
Keyword(s):  
Nonlinear Dynamics ◽  
Experimental Investigation ◽  
Thermal Lens ◽  
Concentration Measurements

An Experimental Investigation of Sample–Fluid Heat Coupling Effect in Thermal Lens Technique

2020 ◽  
Vol 74 (10) ◽  
pp. 1274-1279
Author(s):  
Gustavo V.B. Lukasievicz ◽  
Leandro S. Herculano ◽  
Elizandra Sehn ◽  
Marcos P. Belançon ◽  
Stephen E. Bialkowski ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Thermal Lens ◽  
Coupling Effect ◽  
Coupling Model ◽  
Theoretical Description ◽  
Photothermal Effect ◽  
Wavefront Distortion ◽  
Absorbing Materials ◽  
Heated Area ◽  
Long Rod

Laser-induced wavefront distortion is detectable by several techniques based on the photothermal effect. The effect is probed by monitoring the phase shift caused by the bulging of the heated area, the photoelastic effects, and the spatial distribution of the refractive index within the sample and in the fluid surrounding it. A simple analytical solution for the wavefront distortion was only possible for low absorbing materials, with the assumption that the stresses obey either the thin-disk or the long-rod type distributions. Recently, a unified theoretical description for the laser-induced optical path change was proposed to overcome part of this limitation for weakly absorbing materials, regardless of its thickness. In this work, we perform an experimental investigation taking the sample–fluid heat coupling effect into account using the thermal lens technique. The experimental investigation presented here validates the unified model. In addition, we show that the heat-coupling model provides an alternative method to obtain physical properties of non-absorbing fluid by using a reference solid sample.

Experimental investigation and theoretical modelling on nonlinear dynamics of cantilevered microbeams

2019 ◽  
Vol 78 ◽  
pp. 103834 ◽  
Author(s):  
Zhenkun Li ◽  
Yuming He ◽  
Bo Zhang ◽  
Jian Lei ◽  
Song Guo ◽  
...  
Keyword(s):  
Nonlinear Dynamics ◽  
Experimental Investigation ◽  
Theoretical Modelling

Experimental Investigation of Thermal Lens Effect in a Flashlamp Pumped CTH:YAG Laser Rod

Optik ◽  
2021 ◽  
pp. 167826
Author(s):  
Mohammad Reza Moghaddam ◽  
Davood Razzaghi ◽  
Marzieh Akbari ◽  
Mohammad Barzan ◽  
Mohsen Ruzbehani
Keyword(s):  
Experimental Investigation ◽  
Thermal Lens ◽  
Lens Effect ◽  
Thermal Lens Effect

Nonlinear dynamics of a MEMS resonator: Theoretical and experimental investigation

2012 ◽  
Author(s):  
Laura Ruzziconi ◽  
Ahmad M. Bataineh ◽  
Mohammad I. Younis ◽  
Weili Cui ◽  
Stefano Lenci
Keyword(s):  
Nonlinear Dynamics ◽  
Experimental Investigation ◽  
Mems Resonator

Experimental investigation of saturated degenerate four-wave mixing for quantitative concentration measurements

1999 ◽  
Vol 38 (33) ◽  
pp. 6951 ◽  
Author(s):  
Thomas A. Reichardt ◽  
William C. Giancola ◽  
Christopher M. Shappert ◽  
Robert P. Lucht
Keyword(s):  
Experimental Investigation ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Concentration Measurements ◽  
Degenerate Four Wave Mixing
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