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Plasmonic Bragg Resonators Miriam Deutsch, University of Oregon, DMR-0239273 PowerPoint PPT Presentation


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Dielectric. Metal. …. Metal. Plasmonic Bragg Resonators Miriam Deutsch, University of Oregon, DMR-0239273. Objectives: To study the optical response of nano-structured metallodielectric systems such as spherical plasmonic Bragg resonators. Results:

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Plasmonic Bragg Resonators Miriam Deutsch, University of Oregon, DMR-0239273

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Plasmonic bragg resonators miriam deutsch university of oregon dmr 0239273

Dielectric

Metal

Metal

Plasmonic Bragg ResonatorsMiriam Deutsch, University of Oregon, DMR-0239273

Objectives:

To study the optical response of nano-structured metallodielectric systems such as spherical plasmonic Bragg resonators.

Results:

We find that resonance conditions exist such that the optical response of the system may be continuously tuned from enhanced absorption (below left) to induced transparency (below right.)

1 - 5μm

Increasing resonator size, changing core/shell ratio

diameter ~ 1μm

diameter

~ 4μm

-Log (Transmittance)

Absorption cross-section (μm2)

Wavelength (μm)

Wavelength (μm)

K. Hasegawa, C. A. Rohde, M. Deutsch, submitted (2005)


Plasmonic bragg resonators miriam deutsch university of oregon dmr 0239273

Plasmonic Bragg ResonatorsMiriam Deutsch, University of Oregon, DMR-0239273

Outreach:

The PI has been regularly training students in the REU program. In Summer 2005 Rose Ruther, a Chemistry/Physics REU student from New College of Florida has actively participated in our group research.

We have written a comprehensive computer program for calculating light scattering from metallodielectric spherical Bragg resonators utilizing a plane-wave multipole expansion. The code will soon be distributed on our group website as a free download.

Education:

Five graduate students (Scott Ernst, Sarah Emmons, Charles Rohde, Aiqing Chen and Keisuke Hasegawa) are currently working in the group. Sarah Emmons is a Chemistry graduate student. She is the recipient of the NSF GK-12 fellowship. Charles Rhode is a Physics graduate student. He was an NSF IGERT fellow during the 2002-2003 academic year. Scott Ernst, Aiqing Chen and Keisuke Hasegawa are Physics graduate students.


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