Coherent control of strong field multiphoton absorption in the presence of dynamic Stark shifts

Trallero–Herrero, Carlos; Cardoza, David; Weinacht, Thomas; Cohen, Joseph L.

doi:10.1103/physreva.71.013423

Cited by 64 publications

(92 citation statements)

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“…In the first case, a wavepacket is launched, and its ensuing (ro-)vibrational dynamics is exploited. In the strong-field regime, the laser pulse coherently controls the dynamics during the pulse while utilizing the effective modification of the energy levels of atoms [201][202][203][204] or, respectively, the potential energy landscape experienced by the molecules, via the dynamic Stark effect [205][206][207].…”

Section: State Of the Artmentioning

confidence: 99%

Training Schrödinger’s cat: quantum optimal control

et al. 2015

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Abstract. It is control that turns scientific knowledge into useful technology: in physics and engineering it provides a systematic way for driving a dynamical system from a given initial state into a desired target state with minimized expenditure of energy and resources. As one of the cornerstones for enabling quantum technologies, optimal quantum control keeps evolving and expanding into areas as diverse as quantumenhanced sensing, manipulation of single spins, photons, or atoms, optical spectroscopy, photochemistry, magnetic resonance (spectroscopy as well as medical imaging), quantum information processing and quantum simulation. In this communication, state-of-the-art quantum control techniques are reviewed and put into perspective by a consortium of experts in optimal control theory and applications to spectroscopy, imaging, as well as quantum dynamics of closed and open systems. We address key challenges and sketch a roadmap for future developments. ForewordThe authors of this paper represent the QUAINT consortium, a European Coordination Action on Optimal Control of Quantum Systems, funded by the European Commission Framework Programme 7, Future Emerging Technologies FET-OPEN programme and the Virtual Facility for Quantum Control (VF-QC). This consortium has considerable expertise in optimal control theory and its applications to quantum systems, both in existing areas, such as spectroscopy and imaging, and in emerging quantum technologies, such as quantum information processing, quantum communication, quantum simulation a e-mail: fwm@lusi.uni-sb.de and quantum sensing. The list of challenges for quantum control has been gathered by a broad poll of leading researchers across the communities of general and mathematical control theory, atomic, molecular-, and chemical physics, electron and nuclear magnetic resonance spectroscopy, as well as medical imaging, quantum information, communication and simulation. 144 experts in these fields have provided feedback and specific input on the state of the art, mid-term and long-term goals. Those have been summarized in this document, which can be viewed as a perspectives paper, providing a roadmap for the future development of quantum control. Because such an endeavour can hardly ever be complete (there are many additional areas of quantum control applications, such as spintronics, nano-optomechanical technologies etc.), this roadmap

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Section: State Of the Artmentioning

confidence: 99%

Training Schrödinger’s cat: quantum optimal control

et al. 2015

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“…In order to achieve efficient population transfer beyond the limits of single-photon excitation, one must consider nonlinear coupling between states, multiple interfering pathways and dynamic Stark shifts (DSS), which make resonance conditions time dependent and substantially modify the phase advance of the bare states during the atom-or moleculefield interaction. A dramatic example of this is the transition from stimulated absorption to stimulated emission well before half a Rabi cycle is complete in strong-field two-photon absorption [15,16].…”

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confidence: 99%

“…(b) 0:002 ps 2 . For a negative chirp, the pulse starts blue detuned relative to the bare 3s-4s transition frequency and is able to efficiently drive population from the 3s to the 4s state on the rising edge of the pulse since a blue detuning can compensate for the average dynamic Stark shift on this transition [16]. Then as the frequency of the pulse sweeps to the red at high intensity, Rabi oscillations off resonance (coherent transients [7]) drive population between the 3s and 4s states with decreasing amplitude.…”

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confidence: 99%

Strong Field Multiphoton Inversion of a Three-Level System Using Shaped Ultrafast Laser Pulses

et al. 2008

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READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/copyright Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions?Contact the NRC Publications Archive team at PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1103/PhysRevLett.100.233603Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Strong field multiphoton inversion of a three-level system using shaped ultrafast laser pulses Clow, Stephen D.; Trallero-Herrero, Carlos; Bergeman, Thomas; Weinacht, Thomas http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/droits L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=20434406-7191-4bb9-b11b-11b54510b510 http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=20434406-7191-4bb9-b11b-11b54510b510 We demonstrate strong-field population inversion in a three-level system with single and multiphoton coupling between levels using a single shaped ultrafast laser pulse. Our interpretation of the pulse shape dependence illustrates the difference between sequential population transfer and adiabatic rapid passage in three-level systems with multiphoton coupling between levels. Strong Field Multiphoton Inversion of a Three-Level System Using Shaped Ultrafast Laser Pulses

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“…The action of turning off the coupling between states while the atom and field rephase is analogous to quasi-phase matching in nonlinear optics [69]. The separation of the excitation energy into two temporal pulses allows full use of the π pulse while the singlepeaked π pulse necessarily imposes a Stark shift that forces a rapid phasemismatch between the atom and effective two-photon field amplitude [31]. Of course, tuning the central frequency of the laser pulse would also provide a valid solution, but this is prevented by the experimental constraint of a fixed central frequency.…”

Section: Extension Of the Experimental Resultsmentioning

confidence: 99%

“…In this chapter we also develop a theoretical model for the description of multiphoton transitions with strong fields in the presence of Stark shifts [31]. We also show how the perturbative results obtained in [10][11][12] are a particular case of our model when the limit to weak fields is taken [32].…”

Section: Introduction and Overviewmentioning

confidence: 99%

Strong‐Field Coherent Control

Shapiro

Brumer

2011

Quantum Control of Molecular Processes

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The work presented in this thesis is geared towards the understanding of coherent control in molecules and atoms in strong fields. The analysis is done by studying multiphoton transitions. We present a theoretical model that describes multiphoton transitions under strong fields. We show that in order to achieve population inversion a phase-matching condition between the laser and the atom needs to be satisfied. This phase matching condition shows that fields need to be tailored taking into account the presence of the dynamic stark shift (DSS) effect and compensating for it. These findings are corroborated by experimental results and simulations. Experimentally, we used a genetic algorithm (GA) to find pulse shapes that can efficiently excite atomic Na to the 4s state by means of a two photon absorption. The solutions found by the GA are used directly to integrate Schrödinger's equations for the amplitudes. The results of using this scheme ratify our theoretical model. We also map how the transition from the weak to the strong field limit occurs for two and three level systems in the presence of multiphoton transitions. Here, we show that the perturbative solutions are a particular case of our model and they are recovered in iii

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Coherent control of strong field multiphoton absorption in the presence of dynamic Stark shifts

Cited by 64 publications

References 26 publications

Training Schrödinger’s cat: quantum optimal control

Training Schrödinger’s cat: quantum optimal control

Strong Field Multiphoton Inversion of a Three-Level System Using Shaped Ultrafast Laser Pulses

Strong‐Field Coherent Control

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