Trajectory interferences in a semi-infinite gas cell

S. M. Teichmann; D. R. Austin; P. Bates; S. Cousin; A. Gruen; Matteo Clerici; A. Lotti; D. Faccio; P. Di Trapani; A. Couairon; J. Biegert

doi:10.1002/lapl.201110116

Trajectory interferences in a semi-infinite gas cell

S. M. Teichmann, D. R. Austin, P. Bates, S. Cousin, A. Gruen, Matteo Clerici, A. Lotti, D. Faccio, P. Di Trapani, A. Couairon, J. Biegert

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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. ((c) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) ((c) 2011 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)

Original language	English
Pages (from-to)	207-211
Number of pages	5
Journal	Laser Physics Letters
Volume	9
Issue number	3
DOIs	https://doi.org/10.1002/lapl.201110116
Publication status	Published - Mar 2012

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title = "Trajectory interferences in a semi-infinite gas cell",

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. ((c) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) ((c) 2011 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)",

author = "Teichmann, {S. M.} and Austin, {D. R.} and P. Bates and S. Cousin and A. Gruen and Matteo Clerici and A. Lotti and D. Faccio and {Di Trapani}, P. and A. Couairon and J. Biegert",

year = "2012",

month = mar,

doi = "10.1002/lapl.201110116",

language = "English",

volume = "9",

pages = "207--211",

journal = "Laser Physics Letters",

issn = "1612-2011",

publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Trajectory interferences in a semi-infinite gas cell

AU - Teichmann, S. M.

AU - Austin, D. R.

AU - Bates, P.

AU - Cousin, S.

AU - Gruen, A.

AU - Clerici, Matteo

AU - Lotti, A.

AU - Faccio, D.

AU - Di Trapani, P.

AU - Couairon, A.

AU - Biegert, J.

PY - 2012/3

Y1 - 2012/3

N2 - 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. ((c) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) ((c) 2011 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)

AB - 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. ((c) 2012 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA) ((c) 2011 by Astro Ltd., Published exclusively by WILEY-VCH Verlag GmbH & Co. KGaA)

U2 - 10.1002/lapl.201110116

DO - 10.1002/lapl.201110116

M3 - Article

SN - 1612-2011

VL - 9

SP - 207

EP - 211

JO - Laser Physics Letters

JF - Laser Physics Letters

IS - 3

ER -

Trajectory interferences in a semi-infinite gas cell

Abstract

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