Handbook of Optics: Fiber Optics and Nonlinear Optics, Volume IV, Second Edition

J.P. Marangos
Laser Optics and Spectroscopy Group
Blackett Laboratory, Imperial College
London, United Kingdom
| CPT | coherent population trapping | |
| EIT | electromagnetically induced transparency | |
| IR | infrared | |
| Ladder scheme | three coupled atomic levels with the initial state below the intermediate state which is below the final state | |
| ? (Lambda) scheme | three coupled atomic levels with the initial and final states at lower energy than the intermediate state | |
| Metastable state | an excited state of an atom which has no allowed channels of radiative decay to other states | |
| Raman | a two-photon process coupling two levels of opposite parity in a ? configuration | |
| STIRAP | Stimulated Raman Adiabatic Passage | |
| V (Vee) scheme | three coupled atomic levels with the initial and final states at higher energy than the intermediate state | |
| VUV | vacuum ultraviolet radiation |
| a> | quantum state of atom | |
| E a | energy of atomic state a> |
| ? | angular frequency of field (rad s ?1) | |
| I | laser irradiance (intensity) in Wm ?2 (invariably given in Wcm ?2 in literature) | |
| E | electric field strength (Vm ?1) | |
| Re? (1) | real part of linear susceptibility (dispersion) | |
| Im? (1) | imaginary part of linear susceptibility (absorption) | |
| ? (3) | nonlinear susceptibility | |
| P | macroscopic polarization (Cm ?2) | |
| ? | Rabi frequency; | |
| ab | transition dipole moment between states a> and b> (Cm) | |
| ? a | decay rate from state a> (rad s ?1) |