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Nonlinear absorption is the kind of absorption that occurs when materials are illuminated by a strong laser source. It's name is nonlinear because this type of absorption is proportional to square of intensity and higher orders. Remember Beer's law.
Briefly
dI/dz=-alfa*I-beta*I2-gamma*I3..
beta and gamma are the nonlinear absorption terms!
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What is z-scan technique?
Recently we have proposed a novel Z-scan technique for measuring refractive nonlinearities, based on the direct measurement of the variations of the beam dimensions in the far field. In the present work this approach is extended to the case of simultaneous presence of nonlinear refraction and absorption, enabling the complete characterization of the materials regarding their nonlinear optical properties. In more detail we have found that nonlinear absorption induces asymmetry on the peak-valley configuration of the Z-scan curves, both in the cases of circular and elliptic Gaussian beams. We have also shown that this asymmetry grows exponentially with the values of the nonlinear phase shift and the nonlinear absorption coefficient. Further, we have found that the effects of nonlinear absorption on the Z-scan curves can be suppressed by multiplying the radius Z-scan plot with an open Z-scan curve. This result can be used for determining the nonlinear refractive index of the material through a simplified relation.
What is a nonlinear scale?
A scale that is nonlinear. ~
Nonlinear model of communication?
what is nonlinear?can anybody give me this answer.
When was Nonlinear Oscillations - journal - created?
Nonlinear Oscillations - journal - was created in 1998.
What is an equation for nonlinear?
an nonlinear equation can be y=3x m dose not equal 7
How do you use nonlinear graph in sentence?
A nonlinear graph doesn't make a straight line.
Is y equals x2 a nonlinear equation?
If you mean y = x2, then yes, it is nonlinear.
Is There's Something About Mary chronological or nonlinear?
Nonlinear, since there are character flashbacks throughout the movie.
Examples of nonlinear equations?
y=x2 and y=lnx are two examples of nonlinear equations.
When was A Thousand Years of Nonlinear History created?
A Thousand Years of Nonlinear History was created in 1997.
When was Journal of Nonlinear Mathematical Physics created?
Journal of Nonlinear Mathematical Physics was created in 1994.
Difference types of nonlinear data structure?
Tree, Graphs are the types of nonlinear data structure.
