"Energy Focusing Phenomena from Sonoluminescence to Crystal Fusion"

TYPESolid State Institute Seminar
Speaker:Professor Seth J. Putterman
Affiliation:Dept. of Physics and Astronomy, Univ. of California at Los Angeles, U.S.A.
Location:Solid State Auditorium(Entrance)
Remark:Refreshments at 12:15Dear All,
Abstract:Sonoluminescence is an extraordinary nonlinear oscillation in which a bubble concentrates acoustic energy density by 12 orders of magnitude to make a flash of ultraviolet light which can be as short as 35.picoseconds. Time resolved spectra reveal the formation of a Planck blackbody spectrum even when the photon- electron mean free path is much bigger than the micron plasma which forms inside the imploded bubble. These measurements will be explained in terms of a phase transition driven by Debye screening. While sonoluminescence has not yet created conditions for nuclear fusion, triboluminescence the mother of sonoluminescence- is a source of nanosecond xray pulses, and the phonon spectra of ferroelectrics provide a route to a palm sized neutron source.  
Dear All,
I highly recommend you come to the Solid State seminar today, by Prof. Seth Putterman of UCLA.  Seth is a world expert on sono-luminescence: emission of light, driven by sound waves. 
see details below.
Refreshments will be served 15 minutes before the seminar.
Moti Segev