Publications

BibTex format

@article{Tisch:2018:10.1364/OE.26.015745,
author = {Tisch, JWG and Abdelrahman, Z and Khokhlova, M and Walke, D and Witting, T and Zair, A and Strelkov, V and Marangos, J},
doi = {10.1364/OE.26.015745},
journal = {Optics Express},
pages = {15745--15758},
title = {Chirp-control of resonant high-order harmonic generation in indium ablation plumes driven by intense few-cycle laser pulses},
url = {http://dx.doi.org/10.1364/OE.26.015745},
volume = {26},
year = {2018}
}

Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We have studied high-order harmonic generation (HHG) in an indium ablation plume driven by intense few-cycle laser pulses centered at 775 nm as a function of the frequency chirp of the laser pulse. We found experimentally that resonant emission lines between 19.7 eV and 22.3 eV (close to the 13th and 15th harmonic of the laser) exhibit a strong, asymmetric chirp dependence, with pronounced intensity modulations. The chirp dependence is reproduced by our numerical time-dependent Schrödinger equation simulations of a resonant HHG by the model indium ion. As demonstrated with our separate simulations of HHG within the strong field approximation, the resonance can be understood in terms of the chirp-dependent HHG photon energy coinciding with the energy of an autoionizing state to ground state transition with high oscillator strength. This supports the validity of the general theory of resonant four-step HHG in the few-cycle limit.
AU  - Tisch,JWG
AU  - Abdelrahman,Z
AU  - Khokhlova,M
AU  - Walke,D
AU  - Witting,T
AU  - Zair,A
AU  - Strelkov,V
AU  - Marangos,J
DO  - 10.1364/OE.26.015745
EP  - 15758
PY  - 2018///
SN  - 1094-4087
SP  - 15745
TI  - Chirp-control of resonant high-order harmonic generation in indium ablation plumes driven by intense few-cycle laser pulses
T2  - Optics Express
UR  - http://dx.doi.org/10.1364/OE.26.015745
UR  - http://hdl.handle.net/10044/1/60032
VL  - 26
ER  -

Download

Professor Jon Marangos

Contact

Assistant

Location

Summary

Citation

BibTex format

RIS format (EndNote, RefMan)