Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00201 : Measurements of chemical bonds using diffraction of electronic waves traveling through crystals
Author:
We propose a simple and intuitive procedure for discovering the
atomic
arrangement and the chemical bonds in transparent crystals using the
diffraction of light or electronic waves by crystals. This study
can help to
improve methods of optical imaging, electronic microscopy,
microbiology, and
crystallography. Using fundamental principles of quantum
mechanics, we also
explain the formation of electronic wave packets when a free
electronic beam
passes through the atoms of a solid target. The atoms in solids
act as the
narrow slits of a diffraction grating producing a Fourier
transform of the
sinusoidal waves associated to free electrons incident on the
solid target.
Such a model allows measuring the chemical bonds within 1{\%}
precision.
This research project was done under a NSF-DUE-sponsored program,
called
STAIRSTEP [1], which was designed to engage STEM undergraduate
students in
high-quality research in several fields of science including
physics, at
Lamar University.\\[4pt]
[1] Doerschuk P, Bahrim C, Daniel J, Kruger J, Mann J, and
Martin Ch, \textit{39th ASEE/IEEE Frontiers in Education
Conference,} San Antonio 2009, M3F-1-2.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.201
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