NAPAC2019 - List of Authors (Pogorelsky, I.)

Paper	Title	Page
WEPLO05	Developing Criteria for Laser Transverse Instability in LWFA Simulations	855
SUPLE07	use link to see paper's listing under its alternate paper code
	Y. Yan, L.D. Amorim, P. Iapozzuto, V. Litvinenko, N. Vafaei-Najafabadi Stony Brook University, Stony Brook, USA M. Babzien, M.G. Fedurin, Y.C. Jing, K. Kusche, M.A. Palmer, I. Pogorelsky, M.N. Polyanskiy BNL, Upton, New York, USA M. Downer, J.R. Welch, R. Zgadzaj The University of Texas at Austin, Austin, Texas, USA C. Joshi, W.B. Mori UCLA, Los Angeles, California, USA P. Kumar, V. Samulyak SBU, Stony Brook, USA
	Funding: We acknowledge resources of NERSC facility, operated under Contract No. DE-AC02-5CH11231, and of SEAWULF at Stony Brook University as well as funding from SBU-BNL Seed Grants. Laser-driven plasma wakefield acceleration (LWFA) is considered as a potential technology for future colliders and light sources. To make the best use of a laser’s power, the laser is expected to maintain a stable propagation. A transverse instability is observed in our previous simulations when a long, intense CO₂ laser propagates inside a plasma. This unstable motion is accompanied by strong transverse diffraction of the laser power and results in the disruption of the ion channel typically used for radiation generation. We investigated the hosing-like instability using the Particle-in-Cell code OSIRIS** by modeling the laser portion where this instability is seeded and then evolves. In this proceeding, a criteria will be described that allows for the characterization of the temporal and spatial evolution of this instability. J. Yan, et al. , AAC, IEEE, 2018. * L. Nemos et al., PPCF, 58(3), 2016. ***R. A. Fonseca et al., Lecture Notes Computation Science (2331) 342, 2002.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2019-WEPLO05
About •	paper received ※ 16 September 2019 paper accepted ※ 04 December 2019 issue date ※ 08 October 2019
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THYBB6	Multi-TW Picosecond Long-Wave Infrared Laser for Particle Acceleration at ATF
	M.N. Polyanskiy, M. Babzien, M.A. Palmer, I. Pogorelsky BNL, Upton, New York, USA
	Favorable wavelength scaling makes high peak-power lasers operating in the long-wave infrared (LWIR) spectral range (8 14 µm) attractive for several promising schemes of laser particle acceleration. For instance, because of the scaling of the ponderomotive force and the critical plasma density as λ2 and 1/λ2 respectively, LWIR lasers can drive plasma wakes in laser wakefield accelerators much more efficiently than near-IR lasers while producing much bigger trapping volumes. Amplification of a picosecond pulse in high-pressure CO₂ laser amplifiers is presently the only method of generating a terawatt peak power in LWIR. We recently achieved a 5-TW operation in quasi-single 2-ps pulses at 9.2 μm at 0.05 Hz repetition rate and we are currently working on reducing the pulse duration to below a picosecond as required for the realization of LWFA acceleration in the bubble regime.
	Slides THYBB6 [1.455 MB]
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

WEPLO05

Developing Criteria for Laser Transverse Instability in LWFA Simulations

855

SUPLE07

use link to see paper's listing under its alternate paper code

Y. Yan, L.D. Amorim, P. Iapozzuto, V. Litvinenko, N. Vafaei-Najafabadi
Stony Brook University, Stony Brook, USA
M. Babzien, M.G. Fedurin, Y.C. Jing, K. Kusche, M.A. Palmer, I. Pogorelsky, M.N. Polyanskiy
BNL, Upton, New York, USA
M. Downer, J.R. Welch, R. Zgadzaj
The University of Texas at Austin, Austin, Texas, USA
C. Joshi, W.B. Mori
UCLA, Los Angeles, California, USA
P. Kumar, V. Samulyak
SBU, Stony Brook, USA

Funding: We acknowledge resources of NERSC facility, operated under Contract No. DE-AC02-5CH11231, and of SEAWULF at Stony Brook University as well as funding from SBU-BNL Seed Grants.
Laser-driven plasma wakefield acceleration (LWFA) is considered as a potential technology for future colliders and light sources. To make the best use of a laser’s power, the laser is expected to maintain a stable propagation. A transverse instability is observed in our previous simulations when a long, intense CO₂ laser propagates inside a plasma*. This unstable motion is accompanied by strong transverse diffraction of the laser power and results in the disruption of the ion channel typically used for radiation generation**. We investigated the hosing-like instability using the Particle-in-Cell code OSIRIS*** by modeling the laser portion where this instability is seeded and then evolves. In this proceeding, a criteria will be described that allows for the characterization of the temporal and spatial evolution of this instability.
*J. Yan, et al. , AAC, IEEE, 2018.
** L. Nemos et al., PPCF, 58(3), 2016.
***R. A. Fonseca et al., Lecture Notes Computation Science (2331) 342, 2002.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2019-WEPLO05

About •

paper received ※ 16 September 2019 paper accepted ※ 04 December 2019 issue date ※ 08 October 2019

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THYBB6

Multi-TW Picosecond Long-Wave Infrared Laser for Particle Acceleration at ATF

M.N. Polyanskiy, M. Babzien, M.A. Palmer, I. Pogorelsky
BNL, Upton, New York, USA

Favorable wavelength scaling makes high peak-power lasers operating in the long-wave infrared (LWIR) spectral range (8 14 µm) attractive for several promising schemes of laser particle acceleration. For instance, because of the scaling of the ponderomotive force and the critical plasma density as λ2 and 1/λ2 respectively, LWIR lasers can drive plasma wakes in laser wakefield accelerators much more efficiently than near-IR lasers while producing much bigger trapping volumes. Amplification of a picosecond pulse in high-pressure CO₂ laser amplifiers is presently the only method of generating a terawatt peak power in LWIR. We recently achieved a 5-TW operation in quasi-single 2-ps pulses at 9.2 μm at 0.05 Hz repetition rate and we are currently working on reducing the pulse duration to below a picosecond as required for the realization of LWFA acceleration in the bubble regime.

Slides THYBB6 [1.455 MB]

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)