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Theory of deep ultraviolet generation at maximum coherence assisted by Stark-chirped two-photon resonance | | S.A.Myslivets
; A.K.Popov
; V.V.Kimberg
; Thomas F.George
; | | Date: |
29 Dec 2002 | | Journal: | A chapter in Modern Topics in Chemical Physics, ed. by T.F.George, X.Sun and G.P.Zhang, Research Signpost, Trivandrum, India, 2002, pp. 163-182 | | Subject: | Quantum Physics; Optics; Computational Physics | quant-ph physics.comp-ph physics.optics | | Affiliation: | 1,2), V.V.Kimberg and Thomas F.George ( Institute of Physics of Russian Academy of Sciences, Krasnoyarsk, Russia, Office of the Chancellor/Departments of Chemistry and Physics & Astronomy, University of Wisconsin-Stevens Point, Stevens Point, WI, U | | Abstract: | A scheme is analyzed for effcient generation of vacuum ultraviolet radiation through four-wave mixing processes assisted by the technique of Stark-chirped rapid adiabatic passage. These opportunities are associated with pulse excitation of laddertype short-wavelength two-photon atomic or molecular transitions so that relaxation processes can be neglected. In this three-laser technique, a delayed-pulse of strong oR-resonant infrared radiation sweeps the laser-induced Stark-shift of a two-photon transition in a such way that facilitates robust maximum two-photon coherence induced by the first ultraviolet laser. A judiciously delayed third pulse scatters at this coherence and generates short-wavelength radiation. A theoretical analysis of these problems based on the density matrix is performed. A numerical model is developed to carry out simulations of a typical experiment. The results illustrate a behavior of populations, coherence and generated radiation along the medium as well as opportunities of effcient generation of deep (vacuum) ultraviolet radiation. | | Source: | arXiv, quant-ph/0301158 | | Services: | Forum | Review | PDF | Favorites | |
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