Three-dimensional (3D) backward and forward second harmonic generation (SHG) microscopy of biological tissues

2008 ◽  
Vol 1 (6) ◽  
pp. 443-450 ◽  
Author(s):  
Paolo Bianchini ◽  
Alberto Diaspro
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Three Dimensional ◽  
Biological Tissues

scholarly journals Three-Dimensional High-Resolution Second-Harmonic Generation Imaging of Endogenous Structural Proteins in Biological Tissues

2002 ◽  
Vol 82 (1) ◽  
pp. 493-508 ◽  
Author(s):  
Paul J. Campagnola ◽  
Andrew C. Millard ◽  
Mark Terasaki ◽  
Pamela E. Hoppe ◽  
Christian J. Malone ◽  
...  
Keyword(s):  
High Resolution ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Three Dimensional ◽  
Biological Tissues ◽  
Structural Proteins ◽  
Second Harmonic Generation Imaging

Numerical study of the second harmonic generation in FELs

2021 ◽  
Vol 28 (3) ◽  
Author(s):  
A. M. Kalitenko
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Free Electron ◽  
Numerical Study ◽  
Second Harmonic ◽  
Three Dimensional ◽  
X Ray ◽  
Linac Coherent Light Source ◽  
The Individual ◽  
Analytical Expressions

A numerical study of the effect of betatron oscillations on the second harmonic generation in free-electron lasers (FELs) is presented. Analytical expressions for the effective coupling strength factors are derived that clearly distinguish all contributions in subharmonics and each polarization of the radiation. A three-dimensional time-dependent numerical FEL code that takes into account the main FEL effects and the individual contribution of each electron to the second harmonic generation is presented. Also, the X- and Y-polarizations of the second harmonic are analyzed. The second harmonic was detected in experiments at the Advanced Photon Source (APS) Low Energy Undulator Test Line (LEUTL) and Linac Coherent Light Source (LCLS) in the soft X-ray regime. The approach presented in the article can be useful for a comprehensive study and diagnostics of XFELs. In the paper, the LCLS and Pohang Accelerator Laboratory X-ray Free-Electron Laser (PAL-XFEL) experiments are modeled. The simulation results are in a good agreement with the experimental data.

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