Analysis of Cr Atoms Three-Dimensional Deposition Characteristics
The semi-classical model is used to simulate the three-dimensional trajectory and deposition distribution of the chromium atoms in the Gaussian laser standing wave field using the Runge-Kutta method, and then the three-dimensional deposition stripes are also given, besides, the effects of atomic beam divergence, chromatic aberration and spherical aberration on deposition structure are also analyzed.
Simulation of sodium atom deposition pattern in a laser standing wave field
A grating structure with the period of half of the laser wavelength is formed by focusing the atoms with a nearly resonant laser standing wave field. The motion of sodium atoms traversing an unsaturated potential are studied by the semi_classical approximation. The structures of gratings under various conditions were simulated using numerical method. By characterizing the grating with FWHM and contrast, the influence of some factors, such as the transverse temperature, the longitudinal velocity, and the free flight to the atom deposition are analysed. Our work provides a theoretical basis to the ongoing atom lithography experiment.
Investigations of dielectric gratings using electrodynamic models based on volume integral equations
Eigenmodes of planar and cylindrical dielectric gratings (DGs) and electromagnetic wave scattering from multiplayer DGs are investigated. The DG characteristics are calculated using numerical-analytical solution of integral equations (IEs).