Adiabatic Following in Two-Photon Transition
dc.contributor | Virginia Tech | en |
dc.contributor.author | Nayfeh, Munir H. | en |
dc.contributor.author | Nayfeh, Ali H. | en |
dc.contributor.department | Biomedical Engineering and Mechanics | en |
dc.date.accessed | 2014-04-22 | en |
dc.date.accessioned | 2014-04-25T14:12:38Z | en |
dc.date.available | 2014-04-25T14:12:38Z | en |
dc.date.issued | 1977-03-01 | en |
dc.description.abstract | The coherent interaction of two smoothly varying, near-resonant, two-photon pulses with a three-level system can be described by "two-photon damped Bloch equations" which are analogous to those for a one-photon transition in a two-level system except for the presence of a two-photon coupling and a frequency shift. These equations are solved for the cases γ1, γ2≪Ω, γ1=γ2, and γ2k2ε4Ω2, γ1≪Ω, where γ1 and γ2 are the atomic energy and phase relaxation widths, respectively, and Ω is the Rabi frequency. The leading contribution to the refractive index is intensity dependent, caused by the level shifts inherent in multiphoton processes; it includes a relaxation dependent part which is important at times shorter than γ−11. The second-order contributions depend on the square of the intensity and the time-integrated square of the intensity. The latter contribution, which is relaxation dependent, causes line asymmetry at the long-wavelength wing; it consists of a term proportional to γ2−γ1 and only important at early times and a term proportional to 2γ2−γ1. | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Nayfeh, M. H.; Nayfeh, A. H., "adiabatic following in two-photon transition," Phys. Rev. A 15, 1169 (1977); DOI: http://dx.doi.org/10.1103/PhysRevA.15.1169 | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevA.15.1169 | en |
dc.identifier.issn | 1050-2947 | en |
dc.identifier.uri | http://hdl.handle.net/10919/47703 | en |
dc.identifier.url | http://journals.aps.org/pra/abstract/10.1103/PhysRevA.15.1169 | en |
dc.language.iso | en_US | en |
dc.publisher | American Physical Society | en |
dc.rights | In Copyright | en |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
dc.title | Adiabatic Following in Two-Photon Transition | en |
dc.title.serial | Physical Review A | en |
dc.type | Article - Refereed | en |
dc.type.dcmitype | Text | en |
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