Direct Magnetic Resonances with Infrared Light from Plasmonic Single Closed Ring Resonators

2:30 PM–4:54 PM, Wednesday, March 7, 2007
Colorado Convention Center Room: 501

Sponsoring Unit: FIAP
Chair: Stefan Zollner, Freescale Semiconductor

Abstract ID: BAPS.2007.MAR.S38.4

Abstract: S38.00004 : Direct Magnetic Resonances with Infrared Light from Plasmonic Single Closed Ring Resonators*

3:30 PM–3:42 PM

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Authors:

Zhao Hao
(Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720)

Michael C. Martin
(Advanced Light Source, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720)

Bruce Harteneck
(Center of X-Ray Optics and Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720)

Stefano Cabrini
(Center of X-Ray Optics and Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720)

Erik H. Anderson
(Center of X-Ray Optics and Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720)

Willie J. Padilla
(Department of Physics, Boston College, 140 Commonwealth Ave., Chestnut Hill, MA 02467)

We report here a spectroscopic study on plasmonic ring resonators at grazing angle incidence. With the magnetic component of the infrared light perpendicular to the ring plane (TM), we successfully observed a strong resonance signal at Mid- to Near-IR frequencies. Comparing to simulations, we identify that this signal is due to the resonance of the TM wave with the surface plasmon propagation of the metal rings. We provide a solution to measure direct magnetic resonance by using a grazing incidence objective on a FTIR microscope. We also demonstrate a method to realize magnetic resonance at optical frequencies by channeling the surface plasmon in a closed metallic ring.

*This work was supported by the Director, Office of Science, of the U.S. Department of Energy.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2007.MAR.S38.4

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Bulletin of the American Physical Society

2007 APS March Meeting

Volume 52, Number 1

Monday–Friday, March 5–9, 2007; Denver, Colorado

Session S38: Focus Session: Negative Index Materials: Concepts to Applications I

Abstract: S38.00004 : Direct Magnetic Resonances with Infrared Light from Plasmonic Single Closed Ring Resonators*

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