Measurement of fifth- and seventh-order nonlinearities of glasses

Chen, Yifan; Beckwitt, Kale; Wise, Frank W.; Aitken, B. G.; Sanghera, Jasbinder S.; Aggarwal, Ishwar D.

doi:10.1364/josab.23.000347

Cited by 124 publications

(49 citation statements)

References 8 publications

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“…It is seen from these tables that the values of γ 2 obtained using values for z R of independent measurements notably differ from the values of γ 2 calculated using other fitting methods. Although all obtained values for γ 2 are consistent with values for fused silica known from literature [3,[17][18][19][20][21][22], we assume that the values of γ 2 obtained by taking into account independent measurements of z R are preferable due to their more logical determination. It is significant also to note that for calculation of on-axis intensity the measured pulse profile with τ m = 210 ps pulse duration (Fig.…”

Section: Resultssupporting

confidence: 86%

“…It gives a useful insight into important aspects of the Z-scan technique that are usually overlooked. In this paper we present the experimental results of the Z-scan measurements obtained using pulses with different pulse shapes for fused silica for which magnitudes of the nonlinear coefficient n 2 are well established using different measurement methods [3,[17][18][19][20][21][22]. The obtained results show that measured Z-scan data should be properly processed for extracting the correct values of the optical Kerr nonlinear coefficient.…”

Section: Introductionmentioning

confidence: 94%

“…We used fused silica KU-1 plates with thickness of about 6 mm as samples for the measurements. It is well known that the nonlinear coefficient of the optical Kerr effect in fused silica is rather low [17][18][19][20][21][22]. So, a high intensity of laser pulses is needed for Z-scan measurements.…”

Section: Experimental Set-up For the Z-scan Measurementsmentioning

confidence: 99%

See 2 more Smart Citations

Dependence of Z-scan measurements on the spatiotemporal pulse parameters

Slavinskis¹,

Murauskas²,

Dement'ev³

2011

Lith. J. Phys.

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We report the experimental results obtained by the closed-aperture Z-scan technique where Nd:YAG minilaser short pulses with different temporal pulse shapes have been used. It is shown that the nonlinear refractive index coefficient n2 of fused silica (one of the smallest among the condensed media) can be successfully measured using the pulses with durations of about 1 ns and energies less than 1 mJ. Very good compatibility between the values for the same samples of fused silica is obtained only if the temporal shapes of the used SBS-compressed, single longitudinal or multi longitudinal mode pulses are properly taken into account. It is also shown that spatial properties of the used beams should be taken account of properly. By these experiments we emphasize the significance of taking into account the temporal pulse shape profile for accurate determination of the nonlinear refractive index by the Z-scan technique.

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Section: Resultssupporting

confidence: 86%

Section: Introductionmentioning

confidence: 94%

See 1 more Smart Citation

Dependence of Z-scan measurements on the spatiotemporal pulse parameters

Slavinskis¹,

Murauskas²,

Dement'ev³

2011

Lith. J. Phys.

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show abstract

“…While the nonlinear indices n 2 ,n 4 (or equivalently the nonlinear susceptibilities) depend solely on material properties and can be accurately characterized by means of consolidated techniques [3,4], the normalized coefficient α used throughout the paper turns out to depend on the input intensity as well, and hence the impact of the quintic nonlinearity can be tuned by changing the optical power [17]. Another area where the predictions based on the present model can be relevant and can lead to experimental test, is the dynamics of ultracold atoms (Bose-Einstein condensates), where the quintic term arises from higher-order (three-body) atom interactions [28], and tuning of the nonlinearities can be achieved by means of Feshbach resonances.…”

Section: Discussionmentioning

confidence: 99%

“…The importance of such a model lies in the fact that it constitutes the simplest model for a defocusing saturable Kerr effect [1,2], whose parameters can be effectively measured in a relatively simple way by two-wave coupling or Z scan [3,4].…”

Section: Introductionmentioning

confidence: 99%

Bistability and instability of dark-antidark solitons in the cubic-quintic nonlinear Schrödinger equation

2011

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We characterize the full family of soliton solutions sitting over a background plane wave and ruled by the cubic-quintic nonlinear Schrödinger equation in the regime where a quintic focusing term represents a saturation of the cubic defocusing nonlinearity. We discuss existence and properties of solitons in terms of catastrophe theory and fully characterize bistability and instabilities of the dark-antidark pairs, revealing new mechanisms of decay of antidark solitons.

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Controlling Soliton Pulse Propagation in Inhomogeneous Optical Waveguides With Dual‐Power Law Refractive Index

Mrzog Alaofi,

Shaalan,

Ali

2024

Circuit Theory & Apps

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This study focuses on the manipulation of soliton parameters within optical waveguides characterized by a dual‐power law refractive index, drawing similarities with published papers. The precise management of solitons holds significant importance in the field of fiber‐optical communication. While previous research has primarily concentrated on modifying soliton attributes such as amplitude and width, comparatively less attention has been dedicated to controlling the wave speed of solitons. In order to bridge this gap, the researchers adopted the employment of the nonlinear Schrödinger equation with time‐dependent dispersion and two power‐law nonlinearities, mirroring similar approaches found in published literature. By employing this methodology, the researchers successfully achieved active control over the wave speed of solitons in non‐uniform optical waveguides. To effectively handle the inherent complexities of the nonlinear system, two well‐established techniques, namely, the generalized Kudryashov method and the simple equation method, were utilized to derive solutions. These techniques have been previously employed and demonstrated in published papers, further enhancing the validity and reliability of the research findings. We discuss the traveling wave solutions by finding the fixed points of the dynamical planar system.

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Measurement of fifth- and seventh-order nonlinearities of glasses

Cited by 124 publications

References 8 publications

Dependence of Z-scan measurements on the spatiotemporal pulse parameters

Dependence of Z-scan measurements on the spatiotemporal pulse parameters

Bistability and instability of dark-antidark solitons in the cubic-quintic nonlinear Schrödinger equation

Controlling Soliton Pulse Propagation in Inhomogeneous Optical Waveguides With Dual‐Power Law Refractive Index

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