REU Student Project:
Amanda Webb
2010 U.S. Students at UCF
Advisors: Martin C. Richardson and Mark Ramme
"Laser Induced Ag Nano-Clusters in Glass"
Ultrashort lasers pulses can be used to irradiate glass causing the formation of Ag nanoparticles. When using these laser pulses at highrepetition rates, the photo-reduced silver atoms are able to form silver nanoparticles without additional heat treatment due to heat accumulation effects within the focal volume in the glass. It is believed that using a higher laser repetition rate will then create a higher cluster density of the Ag micro-clusters formed due to the increased local temperature in the
focal region. When optically pumped, these silver micro-clusters are assumed to produce a second harmonic generation (SHG) caused by a spatially uneven charge distribution.
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