Laser Light Absorption with Density Profile Modifications

Investigation of absorption pump light distribution in edged-pumped high power Yb:YAGYAG disk laser

In this article, we present a specific shape of disk laser which is side-pumped by four non-symmetric hollow- ducts. The use of non-symmetric hollow duct based on two goals of the uniformity of the pump light distribution profile and the homogeneity of pump light profile through the disk. First of all we simulated the pump light distribution in the disk by using Monte-Carlo ray tracing method. ...

A Quasilinear Parabolic Equation With Inhomogeneous Density and Absorption

Absorption of femtosecond laser pulses in high-density plasma.

Areal Density Measurement of Laser Targets Using Absorption Lines

LLE Review, Volume 69 11 Absorption lines due to 1s–2p transitions in titanium ions are predicted to be observed in the implosion of titanium-doped shells. The measured absorption of these lines can be used to determine the peak areal density ρ∆r of the doped layer and hence of the total compressed shell. The absorption lines are studied by solving the radiation transport equation using opacity...

Light absorption engineering of hydrogenated nanocrystalline silicon by femtosecond laser.

The light absorption coefficient of hydrogenated nanocrystalline silicon has been engineered to have a Gaussian distribution by means of absorption modification using a femtosecond laser. The absorption-modified sample exhibits a significant absorption enhancement of up to ∼700%, and the strong absorption does not depend on the incident light. We propose a model responsible for this interesting...