Strong-field physics with nanospheres

Seiffert, Lennart; Zherebtsov, Sergey; Kling, Matthias F.; Fennel, Thomas

doi:10.48550/arxiv.2109.02367

Cited by 1 publication

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References 98 publications

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“…These pulses are actively used to study the dynamics of wave packets in atoms, molecules and solid bodies [2][3][4][5]. Recently the interaction of ultra short pulses with different nanostructures [6,7], in particular, with metal nanostructures [8,9], is actively investigated. The interest in recent studies is related to the possibility to convert ultrafast optical signals into low-frequency signals due to creation of the electron current under the interaction of the initial pulse with a nanoparticle.…”

Section: Introductionmentioning

confidence: 99%

Coherent control and creation of population gratings for a pair of attosecond pulses in a resonant medium based on one-dimensional rectangular quantum wells

Архипов

Belov

Архипов

et al. 2022

Optics and Spectroscopy

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Attosecond pulses can be used to create and control coherence in resonant media, since their duration is shorter than the population relaxation times T1 and medium polarization T2. Previously, the possibility of creating and ultrafast control of electromagnetically induced gratings (EMIG) of atomic populations in a resonant medium was shown using a sequence of extremely short light pulses, when the pulses coherently interact with the medium and do not simultaneously overlap in the medium. These studies were carried out in various approximations, when a finite number of energy levels of the medium is taken into account, or when the pulse amplitude is small. In this paper, based on a direct numerical solution of the time dependent Schredinger equation without the indicated approximations, we study the possibility of ultrafast coherent control of populations and the creation of an EMIG by a pair of attosecond pulses in a multilevel resonant medium with a low density of particles. The medium is modeled using a one-dimensional rectangular potential well with infinitely high walls. The studies performed show the possibility of ultrafast coherent control of the properties of resonant media based on quantum wells using attosecond pulses. Keywords: electromagnetically induced gratings, coherent interaction, extremely short pulses, unipolar pulses, attosecond pulses, medium coherence.

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