<html xmlns="http://www.w3.org/TR/REC-html40" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
</head>
<body vlink="purple" link="blue" lang="EN-US">
<div class="Section1">
<p align="center" class="MsoNormal"><b>Old Dominion University<o:p></o:p></b></p>
<p align="center" class="MsoNormal"><b>Department of Physics<o:p></o:p></b></p>
<p align="center" class="MsoNormal"><b><o:p> </o:p></b></p>
<p align="center" class="MsoNormal"><b>Spring Colloquium Series<o:p></o:p></b></p>
<p align="center" class="MsoNormal"><o:p> </o:p></p>
<p align="center" class="MsoNormal"><b>Tuesday February 16, 2010<o:p></o:p></b></p>
<p align="center" class="MsoNormal"><o:p> </o:p></p>
<p align="center" class="MsoNormal">"Extraordinary optical transmission
revisited: how light gets through isolated or periodic arrays of subwavelength
slits and holes (or not)"<o:p></o:p></p>
<p align="center" class="MsoNormal"><br>
<b>Dr. John Weiner<o:p></o:p></b></p>
<p align="center" class="MsoNormal"><b>National
Institute of Standards and Technology, Center for Nanoscale Science and
Technology</b><b><o:p></o:p></b></p>
<p align="center" class="MsoNormal"><b><o:p> </o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoPlainText">The passage of light through apertures
much smaller than the wavelength of the light has proved to be a surprisingly
subtle phenomenon. This talk describes how modern developments in
nanofabrication, coherent light sources, three-dimensional numerical vector
field simulations and careful, quantitative measurements have led to the
radical revision of early predictions based on scalar diffraction theory and classical
electrodynamic models. Optical response of real materials to incident coherent
radiation at petahertz frequencies leads to unexpected consequences for
transmission (and extinction) of light through subwavelength aperture
arrays. Applications of subwavelength light localization
(“plasmonics”) to long-standing problems of single-molecule
detection, ultrasensitive detection of refractive index changes, and solar
energy conversion will also be discussed to the extent that time and interest
allows.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p align="center" class="MsoNormal">Presentation: Physical
Sciences Building II 1100 @ 3:00 pm<o:p></o:p></p>
<p align="center" class="MsoNormal">Refreshments: 1st Floor Atrium @ 2:30 pm<o:p></o:p></p>
<p align="center" class="MsoNormal"><o:p> </o:p></p>
<p align="center" class="MsoNormal">More details at http://www.physics.odu.edu<o:p></o:p></p>
<p align="center" class="MsoNormal">All are Welcome!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</body>
</html>