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Join us for a Webinar on May 29, 2013
at 1 PM EDT |
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Free Webinar
Speakers:
 Dr. Robert R. McLeod
Associate Professor
Electrical, Computer and Energy Engineering
University of Colorado at Boulder
"3-D Gradient-Index Polymer Optics"
Gradient index (GRIN) optics are traditionally fabricated via diffusion of a liquid species through a solid host material such that the refractive index depends on the local concentration of the diffusing species. In this talk, McLeod will describe materials and lithography processes that enable the fabrication of GRIN optics with arbitrary 2-D and 3-D structure covering scales from ~200 nm to cm. The key is a photopolymer material in which diffusion is locally controlled by a photo-initiated polymerization reaction. By proper selection of monomers and processing conditions, index change up to 0.1 has been demonstrated. Unusual lens function (e.g. extended depth of focus) and 3-D photonic devices will be used to illustrate the process.
 Patrice Genevet
Research Associate
Professor Federico Capasso's Group
Harvard University
"Photonic Metasurfaces"
Recent nanotechnology advances have stimulated new approaches across disciplines including photonics, energy harvesting and biophysics. Genevet will give an overview of the recent contributions of Federico Capasso's group to the field, with special emphasis on the development of ultrathin nanostructured optical components. The wavefront of light can be controlled without relying on gradual phase shifts accumulated during propagation, but instead with abrupt phase discontinuities introduced into the light path over the scale of a wavelength. Interfaces decorated by resonant nanostructures to generalize the classical laws of reflection and refraction will also be considered. The versatility of these interfacial phase discontinuities can be exploited to create ultrathin devices that focus light, function as waveplates, and even generate optical field with complex wavefronts. |
| Title: |
Developments in Optics and Optical Components |
| Date: |
Wednesday, May 29, 2013 |
| Time: |
1:00 PM - 2:00 PM EDT (New York Time) |
| After registering you will receive a confirmation email containing information about joining the Webinar. |
System Requirements
PC-based attendees
Required: Windows® 7, Vista, XP or 2003 Server |
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Mac®-based attendees
Required: Mac OS® X 10.6 or newer |
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Mobile attendees
Required: iPhone®, iPad®, Android™ phone or Android tablet |
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