Cooling a two-level emitter in photonic-crystal environments

Marcela Cerbu, Mihai A. Macovei, Gao-xiang Li
2014 Physical Review A. Atomic, Molecular, and Optical Physics  
We investigate the resonant cooling phenomena of a driven two-level radiator embedded in a photonic crystal structure. We find that cooling occurs even at laser-atom-frequency resonance. This happens due to the atomic dressed-states coupling with different strengths resulting in population redistribution and cooling. Furthermore, for off-resonant driving the two-level particle can be in either ground or excited bare-state, respectively. This may help in engineering of novel amplified optical devices as well as highly coherent light sources.
doi:10.1103/physreva.89.013837 fatcat:p7msjo7cyzfkxc3eqpkxuyadpy