One-dimensional laser cooling based on velocity-selective coherent population trapping ~VSCPT! has been investigated numerically through the solution of the optical Bloch equations and through a Monte Carlo analysis. The 1→1 and 2→2 transitions have been examined as a function of the atomic recoil frequency, the spontaneous-emission decay rate, and the Rabi frequency of the cooling laser. It ha...

Introduction:  Laser  interstitial  thermotherapy  (LITT)  is  an  internal  ablation  therapy  method  consisting of a percutaneous or intraoperative insertion of laser fibers directly into the liver tumor with  maximum diameter of 5 cm. In this treatment method, there isn’t any general information about the  relationship  between  increasing  the  exposure  power,  coagulation  and  carboniza...

Laser cooling exploits the physics of light scattering to cool atomic and molecular gases close absolute zero. It is crucial initial step for essentially all gas experiments in which Bose-Einstein condensation and, more generally, quantum degeneracy reached. The ongoing development laser-cooling methods has allowed elements be brought degeneracy, with each additional species offering its own ex...