How aberrations of pump wave affect second harmonic generation is studied. The solution is applied to type I second harmonic generation in KDP crystal. The resu
The numerical solution for a type of quasilinear wave equation is studied. The three-level difference scheme for quasi-linear waver equation with strong dissipa
The behaviors of an interface crack between dissimilar orthotropic elastic halfplanes subjected to uniform tension was reworked by use of the Schmidt method. By
A new light beam termed as a cosh-squared-Gaussian beam (ChSGB) which may be one of solutions of the paraxial wave equation for propagation in complex optical s
In this paper the theoretical and experimental results of sum-frequency mixing of a Ti∶sapphire laser and a 1.064 μm Nd∶YAG laser are presented. By using two
Carbon nitride thin films are deposited on silicon wafers by 532 nm Nd∶YAG laser ablation of graphite in the N2+H2 atmosphere assisted by a dc glow discharge p
By introducing a convergent lens in the phase mask setup and by tilting appropriately the fiber from the phase mask, a linearly chirped fiber grating with an ap
Abstract An external cavity for the laser diode array with a conventional mirror in what we call two-time self-injection operation is presented. The external c
Laser backscattering signals in the atmosphere have a dynamic range of 105 or 106, with the intensity varying from near-field to far-field, such as one to ten k