Laser Spectroscopy and
Nanoparticle Research

at The University of Texas in Austin

Nanoparticle Generation
Deposition - Direct Write
Shelled Nanoparticles
Magnetostrictive Materials
Molecular Beam Studies
fs Laser SHG/THG Studies
Intensive fs XUV Laser Fields
NSOM Microscopy

UT Electrical Engineering Group
UT Mechanical Engineering Group
Texas High-Intensity Laser Center
Texas Materials Institute
Texas Nanotechnology Initiative
Center for Nano- and Molecular Science and Technology
DuPont Electronics
We have invented a process for the production of nanoparticles by Laser Ablation of Microparticles (LAM). Our process is distinguished by having nanoparticle distributions with a relatively small mean diameter and dispersion (ratio of standard deviation in diameter to diameter) as compared to nanoparticles generated by other processes, especially ablation from flat solid surfaces.
Our goal is to develop manufacturing techniques for nanocomposite and nano-heterogeneous materials and devices that combine the functional advantages obtained from the “size-tunable” properties of nanocomposite materials with the fabrication and direct-write advantages available from nanoparticles manufactured and delivered in aerosol form. We focus on developing manufacturing techniques utilizing nanoparticles generated by LAM from an aerosol source, and on two important application areas that benefit from compositional variations on the nanoscale: a) nanostructured giant magnetostrictive films with high magnetization that can be driven at low fields due to a spin reorientation transition, and b) nonlinear photonic devices that have increased optical conversion efficiency due to both the enhancement of the nonlinear effects by nano-heterogeneity and the ability to phase match the interacting optical waves by coherently mixing active and inactive regions in a nano- composite optical media.

By laser
last update: April,11 2006
  Dr. John W. Keto
The University of Texas
Physics Department 
Austin, Texas 78712

Phone: (512) 471-4151
Fax: (512)471-9637

  Group Members

  Open Positions
Nanoparticle Production and Characterization


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