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  Simulation of white light generation and near light bullets using a novel numerical technique

Zia, H. (2018). Simulation of white light generation and near light bullets using a novel numerical technique. Communications in Nonlinear Science and Numerical Simulation, 54, 356-376. doi:10.1016/j.cnsns.2017.05.033.

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https://dx.doi.org/10.1016/j.cnsns.2017.05.033 (Publisher version)
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 Creators:
Zia, H.1, Author              
Affiliations:
1Atomically Resolved Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938286              

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Free keywords: White light generation, Light bullet, Numerical simulation, Non-linear PDE, Supercontinuum, Derivative generalised nonlinear Schrödinger equation
 Abstract: An accurate and efficient simulation has been devised, employing a new numerical technique to simulate the derivative generalised non-linear Schrödinger equation in all three spatial dimensions and time. The simulation models all pertinent effects such as self-steepening and plasma for the non-linear propagation of ultrafast optical radiation in bulk material. Simulation results are compared to published experimental spectral data of an example ytterbium aluminum garnet system at 3.1 µm radiation and fits to within a factor of 5. The simulation shows that there is a stability point near the end of the 2 mm crystal where a quasi-light bullet (spatial temporal soliton) is present. Within this region, the pulse is collimated at a reduced diameter (factor of ∼2) and there exists a near temporal soliton at the spatial center. The temporal intensity within this stable region is compressed by a factor of ∼4 compared to the input. This study shows that the simulation highlights new physical phenomena based on the interplay of various linear, non-linear and plasma effects that go beyond the experiment and is thus integral to achieving accurate designs of white light generation systems for optical applications. An adaptive error reduction algorithm tailor made for this simulation will also be presented in appendix.

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Language(s): eng - English
 Dates: 2017-05-292017-03-142017-05-312017-06-082018-01
 Publication Status: Published in print
 Pages: 21
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.cnsns.2017.05.033
arXiv: 1604.01140
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Project name : The author would like to thank Axel Ruehl and Aradhana Choudhuri for pointing the author to reference [14]. The author would like to thank Aradhana Choudhuri for her help at the beginning of coding a draft of part of the method on the MAT- LAB platform. The author would like to thank Prof. Dr. R.J. Dwayne Miller, for the use of the research group’s computational resources and for funding.
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Title: Communications in Nonlinear Science and Numerical Simulation
Source Genre: Journal
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Publ. Info: Amsterdam, Netherlands : Elsevier B.V.
Pages: - Volume / Issue: 54 Sequence Number: - Start / End Page: 356 - 376 Identifier: ISSN: 1007-5704
CoNE: https://pure.mpg.de/cone/journals/resource/1007-5704