This work presents an analytical calculation of the time-dependent radiation forces on a two-level atom interacting with a single-mode laser field. Such a closed and compact expression of the radiation forces is derived by solving the optical Bloch equations analytically. It is confirmed, in particular, that the radiation force consists of reactive as well as dissipative components, whose explicit analytical forms of the temporal solutions can be explicitly obtained. The succinct analytical solutions of the radiation forces may be helpful for a convenient and intuitive description of the complex atomic dynamics such as interaction with various laser fields.
© 2010 Optical Society of America
Atomic and Molecular Physics
Original Manuscript: April 27, 2010
Revised Manuscript: July 7, 2010
Manuscript Accepted: July 9, 2010
Published: August 9, 2010
Heung-Ryoul Noh and Wonho Jhe, "Analytical solutions of the time-dependent radiation force for a two-level atom interacting with a continuous-wave single-mode laser," J. Opt. Soc. Am. B 27, 1712-1716 (2010)