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Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity

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Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity. / Dollar, F.; Cummings, P.; Chvykov, V.; Willingale, L.; Vargas, M.; Yanovsky, V.; Zulick, C.; Maksimchuk, A.; Thomas, A. G. R.; Krushelnick, K.

In: Physical review letters, Vol. 110, No. 17, 175002, 24.04.2013.

Research output: Contribution to journalJournal article

Harvard

Dollar, F, Cummings, P, Chvykov, V, Willingale, L, Vargas, M, Yanovsky, V, Zulick, C, Maksimchuk, A, Thomas, AGR & Krushelnick, K 2013, 'Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity', Physical review letters, vol. 110, no. 17, 175002. https://doi.org/10.1103/PhysRevLett.110.175002

APA

Dollar, F., Cummings, P., Chvykov, V., Willingale, L., Vargas, M., Yanovsky, V., Zulick, C., Maksimchuk, A., Thomas, A. G. R., & Krushelnick, K. (2013). Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity. Physical review letters, 110(17), [175002]. https://doi.org/10.1103/PhysRevLett.110.175002

Vancouver

Dollar F, Cummings P, Chvykov V, Willingale L, Vargas M, Yanovsky V et al. Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity. Physical review letters. 2013 Apr 24;110(17). 175002. https://doi.org/10.1103/PhysRevLett.110.175002

Author

Dollar, F. ; Cummings, P. ; Chvykov, V. ; Willingale, L. ; Vargas, M. ; Yanovsky, V. ; Zulick, C. ; Maksimchuk, A. ; Thomas, A. G. R. ; Krushelnick, K. / Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity. In: Physical review letters. 2013 ; Vol. 110, No. 17.

Bibtex

@article{c085f60730db48c4aa80ecc8e8222ac5,
title = "Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity",
abstract = "Coherent x-ray beams with a subfemtosecond (<10(-15) s) pulse duration will enable measurements of fundamental atomic processes in a completely new regime. High-order harmonic generation (HOHG) using short pulse (<100 fs) infrared lasers focused to intensities surpassing 10(18) W cm(-2) onto a solid density plasma is a promising means of generating such short pulses. Critical to the relativistic oscillating mirror mechanism is the steepness of the plasma density gradient at the reflection point, characterized by a scale length, which can strongly influence the harmonic generation mechanism. It is shown that for intensities in excess of 10(21) W cm(-2) an optimum density ramp scale length exists that balances an increase in efficiency with a growth of parametric plasma wave instabilities. We show that for these higher intensities the optimal scale length is c/omega(0), for which a variety of HOHG properties are optimized, including total conversion efficiency, HOHG divergence, and their power law scaling. Particle-in-cell simulations show striking evidence of the HOHG loss mechanism through parametric instabilities and relativistic self-phase modulation, which affect the produced spectra and conversion efficiency. DOI: 10.1103/PhysRevLett.110.175002",
keywords = "ELECTRON PARAMETRIC-INSTABILITIES, PLASMA SURFACES, OVERDENSE PLASMA, X-RAYS, PULSE, TARGETS, EMISSION, DRIVEN, LENGTH, LIGHT",
author = "F. Dollar and P. Cummings and V. Chvykov and L. Willingale and M. Vargas and V. Yanovsky and C. Zulick and A. Maksimchuk and Thomas, {A. G. R.} and K. Krushelnick",
year = "2013",
month = apr,
day = "24",
doi = "10.1103/PhysRevLett.110.175002",
language = "English",
volume = "110",
journal = "Physical review letters",
issn = "1079-7114",
publisher = "American Physical Society",
number = "17",

}

RIS

TY - JOUR

T1 - Scaling High-Order Harmonic Generation from Laser-Solid Interactions to Ultrahigh Intensity

AU - Dollar, F.

AU - Cummings, P.

AU - Chvykov, V.

AU - Willingale, L.

AU - Vargas, M.

AU - Yanovsky, V.

AU - Zulick, C.

AU - Maksimchuk, A.

AU - Thomas, A. G. R.

AU - Krushelnick, K.

PY - 2013/4/24

Y1 - 2013/4/24

N2 - Coherent x-ray beams with a subfemtosecond (<10(-15) s) pulse duration will enable measurements of fundamental atomic processes in a completely new regime. High-order harmonic generation (HOHG) using short pulse (<100 fs) infrared lasers focused to intensities surpassing 10(18) W cm(-2) onto a solid density plasma is a promising means of generating such short pulses. Critical to the relativistic oscillating mirror mechanism is the steepness of the plasma density gradient at the reflection point, characterized by a scale length, which can strongly influence the harmonic generation mechanism. It is shown that for intensities in excess of 10(21) W cm(-2) an optimum density ramp scale length exists that balances an increase in efficiency with a growth of parametric plasma wave instabilities. We show that for these higher intensities the optimal scale length is c/omega(0), for which a variety of HOHG properties are optimized, including total conversion efficiency, HOHG divergence, and their power law scaling. Particle-in-cell simulations show striking evidence of the HOHG loss mechanism through parametric instabilities and relativistic self-phase modulation, which affect the produced spectra and conversion efficiency. DOI: 10.1103/PhysRevLett.110.175002

AB - Coherent x-ray beams with a subfemtosecond (<10(-15) s) pulse duration will enable measurements of fundamental atomic processes in a completely new regime. High-order harmonic generation (HOHG) using short pulse (<100 fs) infrared lasers focused to intensities surpassing 10(18) W cm(-2) onto a solid density plasma is a promising means of generating such short pulses. Critical to the relativistic oscillating mirror mechanism is the steepness of the plasma density gradient at the reflection point, characterized by a scale length, which can strongly influence the harmonic generation mechanism. It is shown that for intensities in excess of 10(21) W cm(-2) an optimum density ramp scale length exists that balances an increase in efficiency with a growth of parametric plasma wave instabilities. We show that for these higher intensities the optimal scale length is c/omega(0), for which a variety of HOHG properties are optimized, including total conversion efficiency, HOHG divergence, and their power law scaling. Particle-in-cell simulations show striking evidence of the HOHG loss mechanism through parametric instabilities and relativistic self-phase modulation, which affect the produced spectra and conversion efficiency. DOI: 10.1103/PhysRevLett.110.175002

KW - ELECTRON PARAMETRIC-INSTABILITIES

KW - PLASMA SURFACES

KW - OVERDENSE PLASMA

KW - X-RAYS

KW - PULSE

KW - TARGETS

KW - EMISSION

KW - DRIVEN

KW - LENGTH

KW - LIGHT

U2 - 10.1103/PhysRevLett.110.175002

DO - 10.1103/PhysRevLett.110.175002

M3 - Journal article

VL - 110

JO - Physical review letters

JF - Physical review letters

SN - 1079-7114

IS - 17

M1 - 175002

ER -