2 papers
physics.optics2026
Phase Angle and Effective Second-Harmonic Generation Coefficient
Yisheng Song
In this paper, the calculation formulae of phase angle are given for two classes of largest effective SHG coefficients in uniaxial crystals by means of the optimization theory. Wit…
math.OC2026
Effective Second-Harmonic Generation Coefficient and C-eigenvalue of Nonlinear Susceptibility Tensors
Die Xiao, Yisheng Song
The effective second-harmonic generation (SHG) coefficient is a crucial data that quantifies the efficiency of transforming fundamental frequency light into its second harmonic. Wi…