Welcome to our group website!
My group focuses on experimental research on High Energy Density Plasmas, an extreme state of matter that exists in interior of stars and laser fusion plasma. Laser-based Inertial Confinement Fusion (ICF), known as Laser Fusion, is one of the two main approaches to obtain clean, reliable energies from fusion reactions in laboratories. It is challenging to create and diagnose such high temperature and density matter because of rapid cooling via radiation, diffusion and plasma expansion. Studying behaviors of these non-stationary and non-equilibrium plasmas helps us understand the evolution of stars and an efficient energy transfer mechanism to ignite laser fusion plasma for a potential clean energy source.
Significant progresses have been made in the laser fusion research, however ignition of a laser-driven fusion fuel remains our challenge primarily due to hydrodynamic instabilities. Either in the current fusion scheme or advanced laser fusion scheme, it is a continuous challenge for us to create extremely high pressure (energy density) plasma. Our group studies creation of such a high density plasma and related physics using an ultra-intense, short-pulse laser. Because of the very short time scale of the laser pulse less than a few picoseconds, matters could be heated up to a few million degrees before it expands and cools.
Some of our ongoing research topics are
- Laser Fusion (Inertial Confinement Fusion (ICF), advanced Fast Ignition (FI))
- Intense short pulse laser matter interaction
- Development of high energy x-ray diagnostics
- Generation of bright x-ray source and charged particle beams
Please visit the research page for more information.
10/26/2017 Prof. Sawada presented “Characterization of short-pulse laser-produced x-rays for diagnosing magnetically driven cylindrical isentropic compression” at the 59th Annual meeting of APS DPP in Milwaukee, WI.
9/22/2017 “Numerical study of core formation of asymmetrically driven cone-guided targets” published in Physics of Plasmas. selected as Editor’s pick!
To contact us:
Dr. Hiroshi Sawada
Department of Physics, MS 0220, University of Nevada, Reno
1664 N. Virginia St, Reno, NV 89557
Email: hsawada at unr.edu Office: Leifson Physics 201
Phone: (775) 784-6772 Fax: (775) 784-1398