Imperial College London
Portrait Picture

Prof John W.G. Tisch

Faculty of Natural Sciences, Department of Physics

Professor of Laser Physics
 
 
 
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Contact

 

+44 (0)20 7594 7710john.tisch Website

 
 
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Assistant

 

Ms Judith Baylis +44 (0)20 7594 7713

 
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Location

 

205Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Johnson:2018:10.1063/1.5041498,
author = {Johnson, AS and Wood, D and Austin, DR and Brahms, C and Gregory, A and Holzner, KB and Jarosch, S and Larsen, EW and Parker, S and Struber, C and Ye, P and Tisch, JWG and Marangos, JP},
doi = {10.1063/1.5041498},
journal = {Review of Scientific Instruments},
title = {Apparatus for soft x-ray table-top high harmonic generation},
url = {http://dx.doi.org/10.1063/1.5041498},
volume = {89},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - There has been considerable recent interest in tabletop soft X-ray attosecond sources enabled by the new generation of intense, few-cycle laser sources at operating wavelengths longer than 800 nm. In our recent work [Johnson et al., Sci. Adv. 4(5), eaar3761 (2018)], we have demonstrated a new regime for the generation of X-ray attosecond pulses in the water window (284-540 eV) by high-harmonic generation, which resulted in soft X-ray fluxes of ≈109 photons/s and a maximum photon energy of 600 eV, an order of magnitude and 50 eV higher, respectively, than previously attained with few-cycle drivers. Here we present the key elements of our apparatus for the generation and detection of soft X-ray high harmonic radiation in the water window. Of critical importance is a differentially pumped gas target capable of supporting the multi-atmospheric pressures required to phase-match the high energy emission while strongly constraining the gas density, suppressing the effects of ionization and absorption outside the interaction region.
AU  - Johnson,AS
AU  - Wood,D
AU  - Austin,DR
AU  - Brahms,C
AU  - Gregory,A
AU  - Holzner,KB
AU  - Jarosch,S
AU  - Larsen,EW
AU  - Parker,S
AU  - Struber,C
AU  - Ye,P
AU  - Tisch,JWG
AU  - Marangos,JP
DO  - 10.1063/1.5041498
PY  - 2018///
SN  - 0034-6748
TI  - Apparatus for soft x-ray table-top high harmonic generation
T2  - Review of Scientific Instruments
UR  - http://dx.doi.org/10.1063/1.5041498
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000443720400011&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/67552
VL  - 89
ER  -
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