Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion

Hohenberger, M.; Shvydky, A.; Marozas, J. A.; Fiksel, G.; Bonino, M. J.; Canning, D.; Collins, T. J.  B.; Dorrer, C.; Kessler, T. J.; Kruschwitz, B. E.; McKenty, P. W.; Meyerhofer, D. D.; Regan, S. P.; Sangster, T. C.; Zuegel, J. D.

doi:10.1063/1.4962185

Title: Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion

Abstract

Direct-drive ignition on the National Ignition Facility (NIF) requires single-beam smoothing to minimize imprinting of laser nonuniformities that can negatively affect implosion performance. One-dimensional, multi-FM smoothing by spectral dispersion (SSD) has been proposed to provide the required smoothing [J. A. Marozas, J. D. Zuegel, and T. J. B. Collins, Bull. Am. Phys. Soc. 55, 294 (2010)]. A prototype multi-FM SSD system has been integrated into the NIF-like beamline of the OMEGA EP Laser System. Experiments have been performed to verify the smoothing performance by measuring Rayleigh–Taylor growth rates in planar targets of laser-imprinted and preimposed surface modulations. Multi-FM 1-D SSD has been observed to reduce imprint levels by ~50% compared to the nominal OMEGA EP SSD system. In conclusion, the experimental results are in agreement with 2-D DRACO simulations using realistic, time-dependent far-field spot-intensity calculations that emulate the effect of SSD.

Authors:

^[1]; Shvydky, A. ^[1]; Marozas, J. A. ^[1]; Fiksel, G. ^[2]; Bonino, M. J. ^[1];

^[1]; Collins, T. J. B. ^[1]; Dorrer, C. ^[1]; Kessler, T. J. ^[1]; Kruschwitz, B. E. ^[1]; McKenty, P. W. ^[1]; Meyerhofer, D. D. ^[3]; Regan, S. P. ^[1];

^[1];

^[1]

Univ. of Rochester, Rochester, NY (United States)
Univ. of Michigan, Ann Arbor, MI (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Wed Sep 07 00:00:00 EDT 2016

Research Org.:: Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Org.:: USDOE

OSTI Identifier:: 1328777

Alternate Identifier(s):: OSTI ID: 1321038

Grant/Contract Number:: NA0001944

Resource Type:: Accepted Manuscript

Journal Name:: Physics of Plasmas

Additional Journal Information:: Journal Volume: 23; Journal Issue: 9; Journal ID: ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; diffraction gratings; optical dispersion; x-ray optics; optical depth; speckle patterns

Citation Formats


                    Hohenberger, M., Shvydky, A., Marozas, J. A., Fiksel, G., Bonino, M. J., Canning, D., Collins, T. J.  B., Dorrer, C., Kessler, T. J., Kruschwitz, B. E., McKenty, P. W., Meyerhofer, D. D., Regan, S. P., Sangster, T. C., and Zuegel, J. D. Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion.  United States: N. p., 2016. 
Web.  doi:10.1063/1.4962185.

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                    Hohenberger, M., Shvydky, A., Marozas, J. A., Fiksel, G., Bonino, M. J., Canning, D., Collins, T. J.  B., Dorrer, C., Kessler, T. J., Kruschwitz, B. E., McKenty, P. W., Meyerhofer, D. D., Regan, S. P., Sangster, T. C., & Zuegel, J. D. Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion.  United States.  https://doi.org/10.1063/1.4962185

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                    Hohenberger, M., Shvydky, A., Marozas, J. A., Fiksel, G., Bonino, M. J., Canning, D., Collins, T. J.  B., Dorrer, C., Kessler, T. J., Kruschwitz, B. E., McKenty, P. W., Meyerhofer, D. D., Regan, S. P., Sangster, T. C., and Zuegel, J. D. Wed .  
"Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion".  United States.  https://doi.org/10.1063/1.4962185.  https://www.osti.gov/servlets/purl/1328777.

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@article{osti_1328777,

  title        = {Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion},

  author       = {Hohenberger, M. and Shvydky, A. and Marozas, J. A. and Fiksel, G. and Bonino, M. J. and Canning, D. and Collins, T. J.  B. and Dorrer, C. and Kessler, T. J. and Kruschwitz, B. E. and McKenty, P. W. and Meyerhofer, D. D. and Regan, S. P. and Sangster, T. C. and Zuegel, J. D.},

  abstractNote = {Direct-drive ignition on the National Ignition Facility (NIF) requires single-beam smoothing to minimize imprinting of laser nonuniformities that can negatively affect implosion performance. One-dimensional, multi-FM smoothing by spectral dispersion (SSD) has been proposed to provide the required smoothing [J. A. Marozas, J. D. Zuegel, and T. J. B. Collins, Bull. Am. Phys. Soc. 55, 294 (2010)]. A prototype multi-FM SSD system has been integrated into the NIF-like beamline of the OMEGA EP Laser System. Experiments have been performed to verify the smoothing performance by measuring Rayleigh–Taylor growth rates in planar targets of laser-imprinted and preimposed surface modulations. Multi-FM 1-D SSD has been observed to reduce imprint levels by ~50% compared to the nominal OMEGA EP SSD system. In conclusion, the experimental results are in agreement with 2-D DRACO simulations using realistic, time-dependent far-field spot-intensity calculations that emulate the effect of SSD.},

  doi          = {10.1063/1.4962185},

  journal      = {Physics of Plasmas},

  number       = 9,

  volume       = 23,

  place        = {United States},

  year         = {Wed Sep 07 00:00:00 EDT 2016},

  month        = {Wed Sep 07 00:00:00 EDT 2016}

}

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Works referencing / citing this record:

The laser shock station in the dynamic compression sector. I
journal, May 2019

Wang, Xiaoming; Rigg, Paulo; Sethian, John
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Title: Optical smoothing of laser imprinting in planar-target experiments on OMEGA EP using multi-FM 1-D smoothing by spectral dispersion

Abstract

Citation Formats

Laser beam smoothing caused by the small-spatial-scale B integral journal, January 2002

Development and characterization of a pair of 30–40 ps x‐ray framing cameras journal, January 1995

Continuous contour phase plates for tailoring the focal plane irradiance profile conference, December 1995

A polar-drive–ignition design for the National Ignition Facility journal, May 2012

Polar-direct-drive experiments on the National Ignition Facilitya) journal, May 2015

Use of induced spatial incoherence for uniform illumination of laser fusion targets journal, June 1983

Optical and plasma smoothing of laser imprinting in targets driven by lasers with SSD bandwidths up to 1 THz journal, May 2001

Nonlinear evolution of broad-bandwidth, laser-imprinted nonuniformities in planar targets accelerated by 351-nm laser light journal, October 1999

The Physics of Inertial Fusion book, January 2004

Performance of 1-THz-bandwidth, two-dimensional smoothing by spectral dispersion and polarization smoothing of high-power, solid-state laser beams journal, January 2005

Irradiation uniformity for high-compression laser-fusion experiments journal, May 1999

Reduction of laser imprinting using polarization smoothing on a solid-state fusion laser journal, April 1999

Measurements of core and pusher conditions in surrogate capsule implosions on the OMEGA laser system journal, May 1998

Rayleigh-Taylor Instability and Laser-Pellet Fusion journal, September 1974

Improved laser‐beam uniformity using the angular dispersion of frequency‐modulated light journal, October 1989

Analysis of a direct-drive ignition capsule designed for the National Ignition Facility journal, May 2001

Two-dimensional simulations of plastic-shell, direct-drive implosions on OMEGA journal, March 2005

Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications journal, September 1972

The National Ignition Facility journal, December 2004

Direct-drive inertial confinement fusion: A review journal, November 2015

Laser–plasma interactions in ignition‐scale hohlraum plasmas journal, May 1996

A model of laser imprinting journal, May 2000

National Ignition Facility laser performance status journal, January 2007

The laser shock station in the dynamic compression sector. I journal, May 2019

Long-duration direct drive hydrodynamics experiments on the National Ignition Facility: Platform development and numerical modeling with CHIC journal, August 2019

Laser beam smoothing caused by the small-spatial-scale B integral
journal, January 2002

Development and characterization of a pair of 30–40 ps x‐ray framing cameras
journal, January 1995

Continuous contour phase plates for tailoring the focal plane irradiance profile
conference, December 1995

A polar-drive–ignition design for the National Ignition Facility
journal, May 2012

Polar-direct-drive experiments on the National Ignition Facilitya)
journal, May 2015

Use of induced spatial incoherence for uniform illumination of laser fusion targets
journal, June 1983

Optical and plasma smoothing of laser imprinting in targets driven by lasers with SSD bandwidths up to 1 THz
journal, May 2001

Nonlinear evolution of broad-bandwidth, laser-imprinted nonuniformities in planar targets accelerated by 351-nm laser light
journal, October 1999

The Physics of Inertial Fusion
book, January 2004

Performance of 1-THz-bandwidth, two-dimensional smoothing by spectral dispersion and polarization smoothing of high-power, solid-state laser beams
journal, January 2005

Irradiation uniformity for high-compression laser-fusion experiments
journal, May 1999

Reduction of laser imprinting using polarization smoothing on a solid-state fusion laser
journal, April 1999

Measurements of core and pusher conditions in surrogate capsule implosions on the OMEGA laser system
journal, May 1998

Rayleigh-Taylor Instability and Laser-Pellet Fusion
journal, September 1974

Improved laser‐beam uniformity using the angular dispersion of frequency‐modulated light
journal, October 1989

Analysis of a direct-drive ignition capsule designed for the National Ignition Facility
journal, May 2001

Two-dimensional simulations of plastic-shell, direct-drive implosions on OMEGA
journal, March 2005

Laser Compression of Matter to Super-High Densities: Thermonuclear (CTR) Applications
journal, September 1972

The National Ignition Facility
journal, December 2004

Direct-drive inertial confinement fusion: A review
journal, November 2015

Laser–plasma interactions in ignition‐scale hohlraum plasmas
journal, May 1996

A model of laser imprinting
journal, May 2000

National Ignition Facility laser performance status
journal, January 2007

The laser shock station in the dynamic compression sector. I
journal, May 2019

Long-duration direct drive hydrodynamics experiments on the National Ignition Facility: Platform development and numerical modeling with CHIC
journal, August 2019