Trajectory interferences in a semi-infinite gas cell

Teichmann, S.M. et al. (2012) Trajectory interferences in a semi-infinite gas cell. Laser Physics Letters, 9(3), pp. 207-211. (doi:10.1002/lapl.201110116)

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Abstract

We observe ring structures in high-order harmonics generated in the loose focusing geometry of a semi-infinite gas cell. Phase matching and absorption considerations indicate that the measured signal is restricted to the harmonics generated in the exit plane. We therefore attribute the ring structure to interferences in the single-atom response in the transverse exit plane of the interaction region. Calculations using the stationary phase approximation were used to analyze the contributions of the long and the short trajectories, respectively, and confirm our experimental findings. The simple setup makes quantum path interference measurements feasible without the need for special filtering mechanisms.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Clerici, Dr Matteo and Faccio, Professor Daniele
Authors: Teichmann, S.M., Austin, D.R., Bates, P., Cousin, S., Grün, A., Clerici, M., Lotti, A., Faccio, D., Di Trapani, P., Couairon, A., and Biegert, J.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Physics and Astronomy
Journal Name:Laser Physics Letters
Publisher:IOP Publishing
ISSN:1612-2011
ISSN (Online):1612-202X
Copyright Holders:Copyright © 2012 by Astro Ltd.
First Published:First published in Laser Physics Letters 9(3):207-211
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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