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Realization of a time-domain Fresnel lens with coherent control

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons60949

Wohlleben,  Wendel
Laser Chemistry, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60712

Motzkus,  Marcus
Laser Chemistry, Max Planck Institute of Quantum Optics, Max Planck Society;

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Degert, J., Wohlleben, W., Chatel, B., Motzkus, M., & Girard, B. (2002). Realization of a time-domain Fresnel lens with coherent control. Physical Review Letters, 89(20): 203003. 203003. Retrieved from http://link.aps.org/abstract/PRL/v89/e203003.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-C1A9-8
Abstract
Perturbative chirped pulse excitation leads to oscillations of the excited state amplitude. These coherent transients are governed by interferences between resonant and off-resonant contributions. Control mechanisms in both frequency and time domain are used to modify these dynamics. First, by applying a phase step in the spectrum, we manipulate the phase of the oscillations. By direct analogy with Fresnel zone lenses, we then conceive highly phase-amplitude modulated pulse shapes that slice destructive interferences out of the excitation time structure and enhance the final population.