The Laser Spectroscopy and Chemical Microtechnology Group at Oak Ridge National Laboratory has three central themes: the imaging of domains and interfaces with micro- to nanometer length scales, innovations in mass spectrometry, and creation of robust ion stripping foils for accelerator applications. This effort combines a number of disciplines including laser spectroscopy, mass spectrometry, microfabrication, instrument design, materials science, and chemical analysis. Our laser spectroscopy activities include single nanoparticle spectroscopy and ultrafast spectroscopy for chemical imaging and dynamics at a <100-nm length scale, as well as nonlinear optical spectroscopy of surfaces. An additional program objective is to implement efficient computational methodologies that accurately describe laser-matter interactions to aid in the interpretation as well as prediction of experimental results. Chemical microtechnology activities include microfabrication of ion mobility and ion trap mass spectrometers. The mass spectroscopy effort comprises real-time chemical characterization using miniaturized mass analyzers that operate at elevated pressures directed toward environmental monitoring and isotopic enrichment determination challenges. We deposit thin nano-textured diamond films by chemical vapor deposition for use as robust accelerator stripping foils.

For more information, contact Bob Shaw at (865) 574-4882.