Abstract
In this paper, we theoretically investigate the coherent enhancement of resonance-mediated (2+2) four-photon absorption. It is found that by shaping the spectral phase with a p phase step, the resonance-mediated (2+2) four-photon transition probability can be enhanced. Furthermore, the coherent enhancement dependences on the detuning between the two two-photon absorptions, laser spectral bandwidth and laser centre frequency are explicitly discussed and analysed. We believe these theoretical results may play an important role in enhancing more complex resonance-mediated multiphoton absorption processes.
| Original language | English |
|---|---|
| Article number | 245502 |
| Journal | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Volume | 43 |
| Issue number | 24 |
| DOIs | |
| State | Published - 28 Dec 2010 |
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