Article

# High-energy ultrashort laser pulse compression in hollow planar waveguides.

Laboratoire d'Optique Appliquée, CNRS UMR 7639, Ecole Nationale Supérieure des Techniques Avancées-Ecole Polytechnique, F-91761 Palaiseau CEDEX, France.

Optics Letters (Impact Factor: 3.18). 06/2009; 34(9):1462-4. DOI: 10.1364/OL.34.001462 Source: PubMed

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**ABSTRACT:**We show that few-cycle pulse compression in statically filled hollow fibers can be scaled in energy using circular polarization. This technique could be useful for upgrading pressure gradient devices while preserving stable conditions of operation.05/2010; - [Show abstract] [Hide abstract]

**ABSTRACT:**We examine the spatiotemporal compression of energetic femtosecond laser pules within short gas-filled fibers. The study is undertaken using an advanced nonlinear pulse propagation model based on a multimode generalized nonlinear Schrödinger equation that has been modified to include plasma effects. Plasma defocusing and linear propagation effects are shown to be the dominant processes within a highly dynamical mechanism that enables 100-fs pulses to be compressed into the few-cycle regime after <50mm of propagation. Once the mechanism has been introduced, parameter spaces are explored and compressor designs suitable for performing high-field experiments in situ are presented. We finish by showing how these designs may be extended to novel wavelengths and driving pulses delivered by state-of-the-art high-repetition-rate lasers.Physical Review A. 01/2014; 89:013819. -
##### Article: Modeling and simulation techniques in extreme nonlinear optics of gaseous and condensed media.

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**ABSTRACT:**Computer simulation techniques for extreme nonlinear optics are reviewed with emphasis on the high light-intensity regimes in which both bound and freed electronic states contribute to the medium response and thus affect the optical pulse dynamics. The first part concentrates on the optical pulse propagation modeling, and provides a classification of various approaches to optical-field evolution equations. Light-matter interaction models are reviewed in the second part, which concentrates on methods that can be integrated with time- and space-resolved simulations encompassing realistic experimental scenarios.Reports on Progress in Physics 12/2013; 77(1):016401. · 13.23 Impact Factor

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