Selective Excitation and Creation of Population Inversion in Quantum Systems Using Unipolar Attosecond and Terahertz Pulses

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Selective Excitation and Creation of Population Inversion in Quantum Systems Using Unipolar Attosecond and Terahertz Pulses. / Arkhipov, R. M.; Arkhipov, M. V.; Pakhomov, A. V.; Zhukova, M. O.; Tsypkin, A. N.; Rosanov, N. N.

In: OPTICS AND SPECTROSCOPY, Vol. 129, No. 1, 01.2021, p. 120-126.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{6ec070a34e93460ba65e54b9f87f864e,

title = "Selective Excitation and Creation of Population Inversion in Quantum Systems Using Unipolar Attosecond and Terahertz Pulses",

abstract = "The possibility of selective population of the energy levels of quantum systems using a single unipolar subcycle pulse and a pair of pulses has been studied. The possibility of selective population of quantum levels has been clearly illustrated based on the numerical solution of a system of equations for the density matrix of a three-level medium that interacts with a pair of subcycle attosecond and terahertz pulses. The possibility of creating a population inversion in a three-level medium using a pair of such pulses has been shown. The dynamics of population gratings in a three-level medium exposed to the action of a pair of Gaussian pulses of large amplitude on the system is studied. Whereas the shape of the gratings in a weak field is harmonic, according to analytical calculations performed by the perturbation theory, in the case of a strong field, the spatial profile of the gratings may differ from the sinusoidal profile and may have a complex structure of peaks.",

keywords = "attosecond pulses, subcycle pulses, terahertz pulses, unipolar pulses",

author = "Arkhipov, {R. M.} and Arkhipov, {M. V.} and Pakhomov, {A. V.} and Zhukova, {M. O.} and Tsypkin, {A. N.} and Rosanov, {N. N.}",

year = "2021",

month = jan,

doi = "10.1134/s0030400x20120863",

language = "English",

volume = "129",

pages = "120--126",

journal = "OPTICS AND SPECTROSCOPY",

issn = "0030-400X",

publisher = "Pleiades Publishing",

number = "1",

}

RIS

TY - JOUR

T1 - Selective Excitation and Creation of Population Inversion in Quantum Systems Using Unipolar Attosecond and Terahertz Pulses

AU - Arkhipov, R. M.

AU - Arkhipov, M. V.

AU - Pakhomov, A. V.

AU - Zhukova, M. O.

AU - Tsypkin, A. N.

AU - Rosanov, N. N.

PY - 2021/1

Y1 - 2021/1

N2 - The possibility of selective population of the energy levels of quantum systems using a single unipolar subcycle pulse and a pair of pulses has been studied. The possibility of selective population of quantum levels has been clearly illustrated based on the numerical solution of a system of equations for the density matrix of a three-level medium that interacts with a pair of subcycle attosecond and terahertz pulses. The possibility of creating a population inversion in a three-level medium using a pair of such pulses has been shown. The dynamics of population gratings in a three-level medium exposed to the action of a pair of Gaussian pulses of large amplitude on the system is studied. Whereas the shape of the gratings in a weak field is harmonic, according to analytical calculations performed by the perturbation theory, in the case of a strong field, the spatial profile of the gratings may differ from the sinusoidal profile and may have a complex structure of peaks.

AB - The possibility of selective population of the energy levels of quantum systems using a single unipolar subcycle pulse and a pair of pulses has been studied. The possibility of selective population of quantum levels has been clearly illustrated based on the numerical solution of a system of equations for the density matrix of a three-level medium that interacts with a pair of subcycle attosecond and terahertz pulses. The possibility of creating a population inversion in a three-level medium using a pair of such pulses has been shown. The dynamics of population gratings in a three-level medium exposed to the action of a pair of Gaussian pulses of large amplitude on the system is studied. Whereas the shape of the gratings in a weak field is harmonic, according to analytical calculations performed by the perturbation theory, in the case of a strong field, the spatial profile of the gratings may differ from the sinusoidal profile and may have a complex structure of peaks.

KW - attosecond pulses

KW - subcycle pulses

KW - terahertz pulses

KW - unipolar pulses

UR - http://www.scopus.com/inward/record.url?scp=85104127876&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/b446fd92-2fb7-3cd9-bc23-5c95141c99ee/

U2 - 10.1134/s0030400x20120863

DO - 10.1134/s0030400x20120863

M3 - Article

AN - SCOPUS:85104127876

VL - 129

SP - 120

EP - 126

JO - OPTICS AND SPECTROSCOPY

JF - OPTICS AND SPECTROSCOPY

SN - 0030-400X

IS - 1

ER -

ID: 76291966