Laser Cooling of Radium Atoms, Computational Investigation
Nafie A. Almuslet *
Department of Laser Systems, Institute of Laser, Sudan University of Science and Technology, Khartoum, Republic of Sudan
Iman Nooreldin Sirair Elhaj
Department of Physics, Jazan University, Kingdom of Saudi Arabia
*Author to whom correspondence should be addressed.
Abstract
In this work Matlab simulation of the atomic Liouville equation for spontaneous emissions was developed for laser cooling of Radium atoms. The atomic decay time driven was determined according to the photon account. The theory includes the mechanical light effect for to atomic structure. The study followed the stimulating solution of Optical Bloch Equations (OBE’s) for four levels system in an atom trap, where the center of mass motion is described quantum mechanically. The results showed that the laser cooling approach to Maxwell’s law, the reduction of the velocity leads to new distribution of velocities and the atoms moving towards the light source will resonate the light field (crossing resonance).
Keywords: Laser cooling, radium atom, Optical Bloch Equations, Maxwell’s law