<i>Colloquium</i>: Aligning molecules with strong laser pulses

Stapelfeldt, Henrik; Seideman, Tamar

doi:10.1103/revmodphys.75.543

Cited by 1,736 publications

(1,578 citation statements)

References 93 publications

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“…Higher degrees of alignment are possible using appropriate (strong) laser fields. 76,77 The degree of alignment in such experiments depends on the polarisation anisotropy of the molecular system and this can be very large for MCAs. However, 50 the strong laser fields also affect the RCB.…”

Section: Future Prospectsmentioning

confidence: 99%

Excited states of multiply-charged anions probed by photoelectron imaging: riding the repulsive Coulomb barrier

Verlet

Horke

Chatterley

2014

Phys. Chem. Chem. Phys.

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Section: Future Prospectsmentioning

confidence: 99%

Excited states of multiply-charged anions probed by photoelectron imaging: riding the repulsive Coulomb barrier

Verlet

Horke

Chatterley

2014

Phys. Chem. Chem. Phys.

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“…The studies are carried out on 2,6-difluoroiodobenzene (DFIB) molecules in the adiabatic limit, where the alignment laser pulse is turned on and off slowly compared to the inherent rotational periods of the molecules [7]. In this regime the degree of alignment and orientation will follow the envelope of the 10-ns-long applied laser pulse.…”

Section: Introductionmentioning

confidence: 99%

Laser-induced 3D alignment and orientation of quantum state-selected molecules

Nevo

Holmegaard

Nielsen

et al. 2009

Phys. Chem. Chem. Phys.

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109

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A strong inhomogeneous static electric field is used to spatially disperse a rotationally cold supersonic beam of 2,6-difluoroiodobenzene molecules according to their rotational quantum state. The molecules in the lowest lying rotational states are selected and used as targets for 3-dimensional alignment and orientation. The alignment is induced in the adiabatic regime with an elliptically polarized, intense laser pulse and the orientation is induced by the combined action of the laser pulse and a weak static electric field. We show that the degree of 3-dimensional alignment and orientation is strongly enhanced when rotationally state-selected molecules, rather than molecules in the original molecular beam, are used as targets. 36.40.Wa

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“…Over decades, photon echo has been in use as a powerful method of coherent spectroscopy, providing unique information on transient processes in gases, liquid, and solids [3]. Photon-echo revivals in molecular rotational coherences have been shown to enable efficient quantum control of molecular alignment [4], photochemical reactions [5], as well as synthesis of ultrashort field waveforms [6]. In the era of quantum information, photon echo is viewed as a promising strategy for quantum data storage and quantum memories [7,8,9,10] (recent reviews see also in [11,12,13,14]).…”

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All-optical photon echo on a chip

Moiseev¹,

Моисеев²

2016

Laser Phys. Lett.

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Abstract. We demonstrate that a photon echo can be implemented by alloptical means using an array of on-chip high-finesse ring cavities whose parameters are chirped in such a way as to support equidistant spectra of cavity modes. When launched into such a system, a classical or quantum optical signal -even a single-photon field -becomes distributed between individual cavities, giving rise to prominent coherence echo revivals at well-defined delay times, controlled by the chirp of cavity parameters. This effect enables long storage times for highthroughput broadband optical delay and quantum memory. All-optical photon echo and memory on a chip 2 Abstract. We demonstrate that a photon echo can be implemented by all-optical means using an array of on-chip highfinesse ring cavities whose parameters are chirped in such a way as to support equidistant spectra of cavity modes. When launched into such a system, a classical or quantum optical signal -even a single-photon field -becomes distributed between individual cavities, giving rise to prominent coherence echo revivals at well-defined delay times, controlled by the chirp of cavity parameters. This effect enables long storage times for high-throughput broadband optical delay and quantum memory.A photon echo [1, 2] is a broad class of optical phenomena where a coherence induced in a quantum system by an optical field is emitted in a form of a well-resolved intense optical signal, similar to the spin echo in nuclear magnetic resonance. Over decades, photon echo has been in use as a powerful method of coherent spectroscopy, providing unique information on transient processes in gases, liquid, and solids [3]. Photon-echo revivals in molecular rotational coherences have been shown to enable efficient quantum control of molecular alignment [4], photochemical reactions [5], as well as synthesis of ultrashort field waveforms [6]. In the era of quantum information, photon echo is viewed as a promising strategy for quantum data storage and quantum memories [7,8,9, 10] (recent reviews see also in [11,12,13,14]).Here, we show that a photon echo can be implemented by purely optical means using an array of on-chip high-finesse ring cavities whose parameters are chirped in such a way as to support equidistant spectra of cavity modes. A classical or quantum optical signal launched into such a system becomes distributed between individual cavities, giving rise to prominent coherence echo revivals at well-defined delay times, controlled by the chirp of cavity parameters. This effect enables long storage times for high-throughput broadband optical delay and quantum memory.We consider an array of N single-mode highfinesse chirped cavities with an equidistant spectrum of modes with a mode spacing ∆ (Fig. 1). An optical field coupled into such an array remains distributed between the cavities until all the cavity modes can re-emit in phase, giving rise to an intense photon-echo signals at the output. With appropriate coupling between the nanofiber and the cavities, which is possible, e.g....

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Colloquium: Aligning molecules with strong laser pulses

Cited by 1,736 publications

References 93 publications

Excited states of multiply-charged anions probed by photoelectron imaging: riding the repulsive Coulomb barrier

Excited states of multiply-charged anions probed by photoelectron imaging: riding the repulsive Coulomb barrier

Laser-induced 3D alignment and orientation of quantum state-selected molecules

All-optical photon echo on a chip

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