Resonant Nonlinear Interactions of Light with Matter

Бутылкин, В. С.; Khronopulo, Yury G.; Kaplan, A. E.; Yakubovich, E. I.

doi:10.1007/978-3-642-68891-1

Cited by 81 publications

(52 citation statements)

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“…Using the papers, 5,18,47,48 we can write some physical parameters, listed above: the gold atoms density belongs to the interval N s ¼ 1.1 · 10 17 − 8.6 · 10 18 cm −3 (molar concentration of gold nanoparticles varies from 979 pM to 40 nM), 5,48 the incident laser radiation wavelength is λ ¼ 800 nm; the pulse duration is 1-4 100 fs to 6 ns; jr 12 j ¼ 10 3 cm · s∕g, the longitudinal and transverse relaxation times are less than T k ¼ 10 −12 s and T ⊥ ¼ 10 −13 s. 47 The difference of linear polarizabilities is χ 2 − χ 1 ≈ 10 −25 cm 3 . We consider three possible types of the dependence fðεÞ on nanorod aspect ratio E Q -T A R G E T ; t e m p : i n t r a l i n k -; e 0 0 4 ; 1 1 6 ; 3 7 2…”

Section: Problem Statementmentioning

confidence: 99%

“…Essentially, to observe the effect under consideration in physical experiments, it is necessary that the frequency detuning should be less than 0.1ω p , for example. If the laser radiation frequency is equal to ω p ≈ 2360 THz (λ ¼ 800 nm) and a time of transverse relaxation T ⊥ is about 10 −13 s, 47 then the dimensionless detuning parameter θ ¼ ð2ω p − ω 21 ÞT ⊥ ¼ ξ∕δ 0 should not exceed 20 dimensionless units. We stress a value of the parameter θ bellow.…”

Section: Problem Statementmentioning

confidence: 99%

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Superluminality phenomenon at a femtosecond laser pulse propagation in a medium containing nanorods

Trofimov

Lysak

2017

J. Nanophoton

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Abstract. We show a possibility for soliton formation and superluminality phenomenon at a femtosecond pulse propagation in a medium with noble nanorods. These effects take place if a positive phase grating is induced by laser radiation. We take into account the dependence of two-or one-photon absorption [single-photon absorption (SPA)] on the nanorod aspect ratio and time-dependent nanorod aspect ratio changing due to nanorods reshaping (or melting) because of laser energy absorption. We demonstrate that a fast light propagation mode occurs for various detuning between wave packet carrier frequency and nanorod resonance frequency, which is a key parameter for practical observation of fast or slow light in a physical experiment. We also developed analytical approaches for explanation of laser pulse propagation peculiarities in a medium with nanorods. In particular, in the framework of nonlinear geometric optics approximation, we derived the laws for the pulse intensity and instantaneous frequency evolution if a phase grating is induced by laser radiation in a medium with SPA. We also developed an approximate analytical soliton and derived the chirped soliton amplitude, duration and homogeneous shift evolution, carrier frequency changing, and pulse chirp evolution. The results of analytical consideration are confirmed by computer simulation results. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Section: Problem Statementmentioning

confidence: 99%

Section: Problem Statementmentioning

confidence: 99%

Superluminality phenomenon at a femtosecond laser pulse propagation in a medium containing nanorods

Trofimov

Lysak

2017

J. Nanophoton

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“…14,16 Here d 1m ͑d m2 ͒ is a dipole moment of a transition between the lower (upper) Raman level and the mth quantum level, v m1 is the frequency of the m ! 1 transition, and e j is the unit vector of polarization at v j ; the summation is executed over all the quantum transitions except the Raman one.…”

Section: General Maxwell 1 Bloch Equationsmentioning

confidence: 99%

“…whereṼ R is a (in general, complex) Rabi frequency of the system; by using, e.g., a generalized two-level system approach 14 it is found as…”

Section: General Maxwell 1 Bloch Equationsmentioning

confidence: 99%

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Subfemtosecond pulses in the multicascade stimulated Raman scattering

Kaplan

Shkolnikov

1996

J. Opt. Soc. Am. B

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We explore recently predicted multifrequency 2p solitons in multicascade stimulated Raman scattering (SRS) that was mode locked by the dynamics of population at a Raman quantum transition; we show that these solitons are eigensolitons of a general solitary-wave solution. Soliton components at each frequency are bright pulses of the same (Lorentzian) shape, in contrast to the familiar bright -dark soliton pair in regular SRS and to 1͞cosh regular 2p solitons. Coherent interference of these components gives rise to a train of well-resolved subfemtosecond pulses. From an observation viewpoint the simplest SRS 2p solitons are so-called bright -bright solitons in noncascade SRS with either two (laser 1 Stokes) or three (e.g., laser 1 Stokes 1 anti-Stokes) components.

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Application of Manley‐Rowe Relation in Analyzing Nonlinear Interactions Between Planetary Waves and the Solar Semidiurnal Tide During 2009 Sudden Stratospheric Warming Event

Chau

Stober

et al. 2017

JGR Space Physics

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Upper mesospheric winds observed by the Svalbard specular meteor radar (16.01°E,78.16°N) are analyzed to study the tidal variabilities during the 2009 sudden stratospheric warming (SSW). We report a textbook case of nonlinear interactions between planetary waves (PWs) and the SW2 tide (SWm denotes semidiurnal westward propagating tidal mode with zonal wave number m). The Lomb‐Scargle algorithm, bispectrum, wavelet spectra, and Manley‐Rowe relations are combined to explore the frequency match, phase coherence, energy budget, and wave number relations among the interacting waves and their temporal evolution. Our results suggest that (1) 5, 10, 16 day PW normal modes interact with SW2 generating significant sidebands (S2Ss) at frequencies lower and higher than SW2, known as SW1 and SW3 enhancements, respectively; (2) SW2 is the main energy supplier for both SW1 and SW3, hence shrinks in the interactions; (3) whereas the PWs export relatively negligible energy to SW3 but accept energy from SW2 in generating SW1, therefore, the PWs is not subject to the interactions but controlled by external dynamics, which might in turn act as a key in switching on/off the SW1 and SW3 interactions independently; (4) the SW1 enhancement could be explained as a byproduct of the planetary wave amplification by stimulated tidal decay (PASTIDE); (5) PASTIDE contributes energy to the secondary PW in the late SSW stage reported in previous studies; and (6) one SW1 component associated with the 16 day PW is very close to the semidiurnal lunar mode in frequency, which might contaminate the estimation of the lunar tidal amplification in previous studies.

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Resonant Nonlinear Interactions of Light with Matter

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Cited by 81 publications

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Superluminality phenomenon at a femtosecond laser pulse propagation in a medium containing nanorods

Superluminality phenomenon at a femtosecond laser pulse propagation in a medium containing nanorods

Subfemtosecond pulses in the multicascade stimulated Raman scattering

Application of Manley‐Rowe Relation in Analyzing Nonlinear Interactions Between Planetary Waves and the Solar Semidiurnal Tide During 2009 Sudden Stratospheric Warming Event

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