Fellow
Center for Integrated Plasma Studies
University of Colorado
Ph.D. 1979, University of California, Berkeley

Office: Gamow Tower room F815
Phone: 303-492-9878
Fax: 303-492-0642

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Research

My interests are concentrated in beam/accelerator physics, plasma physics, nonlinear dynamics, and computational physics. My accelerator/beam physics interests concentrate currently in advanced accelerator concepts: the generation and use of large (10-100 GV/m) fields through laser-plasma interactions. My plasma physics interests are currently in the simulation of the nonlinear interactions of radio frequency electromagnetic fields with plasma as occurring in plasma heating. In plasma heating the nonlinear dynamical effects, which are crucial to making the process irreversible, are also part of our research. In recent years we have devoted extensive effort to computational methods, including developing a new arbitrary-dimensional, parallel, hybrid, plasma simulation code, VORPAL.

Research Group

Plasma and Beams Group

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Selected Publications

G. R. Werner and J. R. Cary, "A Stable FDTD Algorithm for Non-diagonal, Anisotropic Dielectrics," J. Comp. Phys. 226, 1085-1101 (2007), doi:10.1016/j.jcp.2007.05.008.

Baifei Shen, Yuelin Li, Karoly Nemeth, Hairong Shang, Robert Soliday, Robert Crowell, Edward Frank, William Gropp, and John Cary, "Triggering wave breaking in a laser plasma bubble by a nanowire," Phys. Plasmas 14, 053115 (2007).

D. A. Dimitrov, D. L. Bruhwiler, J. R. Cary, C. G. R. Geddes, R. E. Giacone, E. Esarey and W. P. Leemans, " Particle-in-cell Simulations of Laser Pulse Propagation in Plasma Channels," Phys. Plasmas, 14, 043105 (2007).

N. Xiang, J. R. Cary, D. C. Barnes, and J. A. Carlsson, "Low-noise electromagnetic particle-in-cell simulation of electron Bernstein waves," Phys. Plasma 13, 062111 (2006).

A. V. Fedotov, D. L. Bruhwiler, A. O Sidorin, D. T. Abell, I. Ben-Zvi, R. Busby, J. R. Cary, and V. N. Litvinenko, "Numerical Study of the Magnetized Friction Force,"� Phys. Rev. ST/AB 9, 074401 (2006).

Cary, J.R. , D. Abell, J. Amundson, D. L. Bruhwiler, R. Busby, J. A. Carlsson, D. A. Dimitrov, E. Kashdan, P. Messmer, C. Nieter, D. N. Smithe, P. Spentzouris, P. Stoltz, R.M. Trines, H. Wang, G. R. Werner, “Petascale self-consistent electromagnetic computations using scalable and accurate algorithms for complex structures,” SciDAC 2006, J. Physics: Conf. Series 46, 200 (2006).

C. G. R. Geddes, Cs. Toth, J. van Tilborg, E. Esarey, C. B. Schroeder, J. Cary, and W. P. Leemans, "Guiding of relativistic laser pulses by preformed plasma channels," Phys. Rev. Lett. 95, 145002 (2005).

K. Sonnad and J. R. Cary, "Control of beam halo formation through nonlinear damping and collimation," Phys. Rev. ST/AB 8, 064202 (2005).

C. G. R. Geddes, Cs. Toth, J. van Tilborg, E. Esarey, C. B. Schroeder, D. Bruhwiler, C. Nieter, J. Cary, and W. P. Leemans, "Production of high-quality electron bunches by dephasing and beam loading in channeled and unchanneled laser plasma accelerators," Phys. Plasmas 12 (5), 056709 (2005).

J. R. Cary, R. Giacone, C. Nieter, D. L. Bruhwiler, "Clean beams from optical injection with a cleanup pulse, " Phys. Plasmas 12 (5), 056704 (2005).

C. Nieter and J.R. Cary, "VORPAL: a versatile plasma simulation code", submitted to J. Comp. Phys. (2003).

D.L. Bruhwiler, D.A. Dimitrov, J.R. Cary, Eric Esarey, Wim Leemans and R.E. Giacone, "Particle-in-cell simulations of tunneling ionization effects in plasma-based accelerators," accepted for publication, Phys. Plasmas (2003).

P.H. Stoltz, J.R. Cary, G. Penn, and J. Wurtele, "Efficiency of a Boris-like integration scheme with spatial stepping," Phys. Rev. ST/AB 5, 094001,1-9 (2002).

W. Wan and J.R. Cary, "Finding Four Dimensional Symplectic Maps with Reduced Chaos," Phys. Rev. ST/AB 4, 084001 (2001).

B. Goode, J.R. Cary, I. Doxas, and W. Horton, "Differentiating between colored random noise and deterministic chaos," J. Geophys. Res. 104, 21289 (2001).