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- Kaijun Feng
- University of Notre Dame 1 Department of Electrical Engineering, , Notre Dame, Indiana 46556, USA
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- William Streyer
- University of Illinois Urbana-Champaign 2 Department of Electrical and Computer Engineering, , Urbana, Illinois 61801, USA
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- S. M. Islam
- University of Notre Dame 1 Department of Electrical Engineering, , Notre Dame, Indiana 46556, USA
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- Jai Verma
- University of Notre Dame 1 Department of Electrical Engineering, , Notre Dame, Indiana 46556, USA
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- Debdeep Jena
- University of Notre Dame 1 Department of Electrical Engineering, , Notre Dame, Indiana 46556, USA
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- Daniel Wasserman
- University of Illinois Urbana-Champaign 2 Department of Electrical and Computer Engineering, , Urbana, Illinois 61801, USA
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- Anthony J. Hoffman
- University of Notre Dame 1 Department of Electrical Engineering, , Notre Dame, Indiana 46556, USA
書誌事項
- 公開日
- 2015-08-24
- DOI
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- 10.1063/1.4929502
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>We demonstrate the excitation of localized surface phonon polaritons in an array of sub-diffraction pucks fabricated in an epitaxial layer of gallium nitride (GaN) on a silicon carbide (SiC) substrate. The array is characterized via polarization- and angle-dependent reflection spectroscopy in the mid-infrared, and coupling to several localized modes is observed in the GaN Reststrahlen band (13.4–18.0 μm). The same structure is simulated using finite element methods and the charge density of the modes are studied; transverse dipole modes are identified for the transverse electric and magnetic polarizations and a quadrupole mode is identified for the transverse magnetic polarization. The measured mid-infrared spectrum agrees well with numerically simulated spectra. This work could enable optoelectronic structures and devices that support surface modes at mid- and far-infrared wavelengths.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 107 (8), 2015-08-24
AIP Publishing