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     COLLOQUIUM OF THE COMPUTATIONAL MATERIALS SCIENCE CENTER
AND THE SCHOOL OF PHYSICS, ASTRONOMY, & COMPUTATIONAL SCIENCES
                            (CSI 898-Sec 001)
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                Materials for LiDAR Applications

                        Richard Massaro
        Remote Sensing and Fluorescence Spectroscopy Lab, ERDC
             US Army Corps of Engineers, Alexandria, VA


	Light detection and ranging (LiDAR) is one of the most rapidly growing
fields of geospatial science. LiDAR can operate in airborne, terrestrial, or
mobile (vehicle-based) modes. It has traditionally been used to precisely map
the topography of a region or to obtain highly accurate range measurements.
However, there has recently been an effort to use LiDAR as a remote sensing
tool. More specifically, the laser pulse of the LiDAR can be used as an
excitation source for photoluminescent and retroreflective materials. Some
applications include the remote signal recovery from biological materials,
tamper/change detection, and targeting, tracking, and locating.

	Computational techniques have been used to model some of the
photoluminescent organic molecules. Density Functional Theory (DFT) and
Time-Dependent DFT (TDDFT) prove to be useful in understanding the molecules'
ground and excited states, respectively. Together with the calculated vibronic
spectra, the emission from the molecules can be modeled. These results will be
presented together with a discussion about the need for more computational
research in LiDAR-relevant materials

                          September 10, 2012
                               4:30 pm
                    Room 301, Research I, Fairfax Campus

Refreshments will be served at 4:15 PM.
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Find the schedule at http://www.cmasc.gmu.edu/seminars.htm