How to measure χ^(3) of a nanoparticle

Shcheslavskiy, Vladislav I.; Saltiel, S.; Faustov, Aleksei R.; Petrov, Georgi I.; Yakovlev, Vladislav V.

doi:10.1364/ol.31.001486

Cited by 10 publications

(7 citation statements)

References 17 publications

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“…The value considered in these calculations was 2.75±0.27 x 10 −14 esu for fused silica reported elsewhere. 25 In order to achieve high peak irradiance values while minimizing the thermal load to the sample, we used fs pulses at 830 nm to modulate the phase of an optical signal. The experiment performed is the time resolved OKG technique, using the setup shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

et al. 2011

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Gold nanoparticles (AuNPs) have proven to be powerful tools in various ultrafast photonic, plasmonic and nanomedical applications. Numerous advances in the use of AuNPs include research on their interesting and remarkably fast changes influenced by Surface Plasmon Resonance excitations. Within this work we report theoretical and experimental results for the physical mechanisms that originate a nonlinearity of refractive index during different temporal regimes for a high-purity silica matrix containing Au nanoparticles. The nanocomposites were prepared by ion implantation into a silica matrix, followed by a thermal annealing. We used an optical Kerr gate with 80 fs pulses at 830 nm and a vectorial self-diffraction technique with 26 ps and with 7 ns at 532 nm in order to investigate the magnitude and response time of the resulting third order nonlinearity. In all cases we were able to measure and identify an electronic polarization responsible for the nonlinear refraction. For the pico-and nano-second near resonance irradiations, a contribution of a thermal effect could be stimulated and then the optical Kerr response enhanced. The presence of saturable absorption for the pico-and nano-second experiments was measured. We observe that our samples behave like waveguides in the near infrared spectrum and we estimate that they posses potential applications for all-optical switching devices.

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Section: Resultsmentioning

confidence: 99%

Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

et al. 2011

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“…A comparison of the extinction and the third-harmonic emission spectrum together with simulations of the field distribution allowed to identify the dominating source for THG. A similar method of comparing a structure in different environments was proposed to measure the nonlinear susceptibility of small nanoparticles, excluding contributions from the environment [70].…”

Section: Origin Of the Thgmentioning

confidence: 99%

Nonlinear spectroscopy of plasmonic nanoparticles

Obermeier

Schumacher

Lippitz

2018

Advances in Physics: X

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The plasmon resonance of a metal nanoparticle increases the optical field amplitude in and around the particle with respect to the incoming wave. In consequence, optical effects that are nonlinear in their field amplitude profit from this increased field. In general, a plasmonic structure can react nonlinearly by itself and it can also enhance the effect of the nonlinearity in its environment, which we consider as plasmonic nanoantenna. In this paper, we review third-order nonlinear effects such as third-harmonic generation, pump-probe spectroscopy, coherent anti-Stokes Raman scattering and four-wave mixing of and near plasmonic nanostructures. All these processes are described by very similar equations for the nonlinear polarization, but the underling physics differs.

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“…The study of cubic susceptibilities is the central problem of nonlinear spectroscopy [8]. The effects due to the cubic susceptibility are the basis of such methods of nonlinear spectroscopy as two-photon spectroscopy, saturation spectroscopy and also allow solving such an important practical problem as the correction of phase distortions by the four-wave mixing method (FWM) [9].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

A study of the third-order nonlinear susceptibility and nonlinear absorption of inas in the middle infrared region

Musaev

Abbasov

Baxtiyarov

2017

EEJET

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⋍10-7 СГСЭ существенно превышают значения, вычисленные на основе модели, описывающей нелинейную восприимчивость электро-нов, находящихся в непараболичной зоне проводимос-ти. Показано, что наблюдаемое расхождение устра-няется, если в расчете учесть диссипацию энергии электронов. Рост эффективности при четырехвол-новом взаимодействии в узкозонных полупроводниках ограничивается нелинейным поглощением взаимодей-ствующих волн Ключевые слова: нелинейная восприимчивость третьего порядка, четырехволновое взаимодействие, узкозонные полупроводники, порог пробоя UDC 621.373.826

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How to measure χ^(3) of a nanoparticle

Cited by 10 publications

References 17 publications

Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

Nonlinear spectroscopy of plasmonic nanoparticles

A study of the third-order nonlinear susceptibility and nonlinear absorption of inas in the middle infrared region

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