E. A. McLean

Research Field

Spontaneously generated magnetic fields of the order of a kilogauss have been observed in a laser-produced plasma, using a variety of targets and background pressures. The generation of these magnetic fields is explained in terms of thermoelectric currents associated with large temperature gradients near the target.

10.1103/physrevlett.26.1012

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Citations (528)

Bandwidth Dependence of Laser Plasma Instabilities Driven by the Nike KrF Laser

Bulletin of the American Physical Society (2011)

J. Weaver Jae-Yong Oh J. F. Seely D. Kehne C. Brown

Nike

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Interactions of Laser-Produced Plasmas with Background Gases

Springer eBooks (1972)

John A. Stamper Stephen O. Dean E. A. McLean

10.1007/978-1-4684-7738-2_20

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Citations (1)

Uniformity of Laser-Driven, Ablatively Accelerated Targets.

Physical Review Letters (1982)

S. P. Obenschain J. Grün B. H. Ripin E. A. McLean

Because of an error in calorimetry, the irradiances quoted in the figures and text of this paper are too large by a factor of 1.7.There are no changes in the conclusions.It is significant, however, that the observed smoothing of laser nonuniformities occurs at a lower irradiance than was originally reported.

Smoothing

10.1103/physrevlett.48.709

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Citations (10)

Efficient, nearly uniform, nearly isentropic ablative acceleration of targets to record velocities

IEEE Journal of Quantum Electronics (1981)

J. A. Stamper S. E. Bodner M. H. Emery John Gardner J. Grün

Ablative case

Isentropic process

10.1109/jqe.1981.1070790

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Time-Resolved Laser-Plasma Backscatter Studies

Physical Review Letters (1974)

B. H. Ripin John M. McMahon E. A. McLean Wallace M. Manheimer J. A. Stamper

Time-resolved and time-integrated measurements of the energy, spectra, and other characteristics of the backscattered laser radiation from a laser-produced plasma are presented. Theoretical comparison shows that most of these measurements are consistent with the stimulated-Brillouin-backscattering instability.

Backscatter (email)

Brillouin zone

10.1103/physrevlett.33.634

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Citations (69)

Spectroscopic measurements of the laser-HANE plasma. Memorandum report

E. A. McLean J. A. Stamper Hans R. Griem A. W. Ali B. H. Ripin

To simulate HANE phenomena at various altitudes, a pulsed (5 nsec) Nd-laser is focused onto Al or C foil targets surrounded by an ambient gas (N/sub 2/, H/sub 2/) at pressures between 15 m Torr and 5 Torr. Temperatures and densities are derived from side-on, time-resolved and time-integrated measurements of absolute spectral line and continuum intensities emitted from the photoionized region ahead of the blast-wave front, and also in the region behind the blast front.

Torr

Blast wave

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Large-Larmor-radius interchange instability

Physical Review Letters (1987)

B. H. Ripin E. A. McLean C. K. Manka C. Pawley J. A. Stamper

We observe linear and nonlinear features of a strong plasma/magnetic field interchange Rayleigh-Taylor instability in the limit of large ion Larmor radius. The instability undergoes rapid linear growth culminating in free-streaming flute tips.

Gyroradius

Rayleigh–Taylor instability

Linear growth

10.1103/physrevlett.59.2299

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Citations (148)

Studies of Spontaneous Magnetic Fields in Laser-Produced Plasmas by Faraday Rotation

Physical Review Letters (1978)

J. A. Stamper E. A. McLean B. H. Ripin

An extensive study has been made of the large magnetic fields in the plasma near the focus of a high-irradiance Nd-laser beam. The dependence of the magnetic field on many experimental conditions is noted---particularly timing and the presence of a preformed plasma. The data were obtained with a Raman-shifted, three-channel Faraday-rotation diagnostic system.

Faraday cage

10.1103/physrevlett.40.1177

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Citations (169)

Rear surface light emission measurements from laser-produced shock waves in clear and Al-coated polystyrene targets

Optics Communications (1999)

E. A. McLean A. V. Deniz A. J. Schmitt J. A. Stamper S. P. Obenschain

Polystyrene

10.1016/s0030-4018(99)00274-6

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Citations (4)