We demonstrate excitation of surface phonon polaritons on patterned gallium phosphide surfaces. Control over the light-polariton coupling frequencies is demonstrated by changing the pattern periodicity and used to experimentally determine the gallium phosphide surface phonon polariton dispersion curve. Selective emission via out-coupling of thermally excited surface phonon polaritons is experimentally demonstrated. Samples are characterized experimentally by Fourier transform infrared reflection and emission spectroscopy, and modeled using finite element techniques and rigorous coupled wave analysis. The use of phonon resonances for control of emissivity and excitation of bound surface waves offers a potential tool for the exploration of long-wavelength Reststrahlen band frequencies.
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31 March 2014
Research Article|
April 02 2014
Engineering absorption and blackbody radiation in the far-infrared with surface phonon polaritons on gallium phosphide
W. Streyer;
W. Streyer
1
Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign
, Urbana, Illinois 61801, USA
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S. Law;
S. Law
1
Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign
, Urbana, Illinois 61801, USA
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A. Rosenberg;
A. Rosenberg
1
Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign
, Urbana, Illinois 61801, USA
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C. Roberts;
C. Roberts
2
Department of Physics and Applied Physics, University of Massachusetts Lowell
, Lowell, Massachusetts
01854, USA
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V. A. Podolskiy;
V. A. Podolskiy
2
Department of Physics and Applied Physics, University of Massachusetts Lowell
, Lowell, Massachusetts
01854, USA
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A. J. Hoffman;
A. J. Hoffman
3
Department of Electrical Engineering, University of Notre Dame
, South Bend, Indiana 46556, USA
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D. Wasserman
D. Wasserman
1
Department of Electrical and Computer Engineering, University of Illinois Urbana Champaign
, Urbana, Illinois 61801, USA
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Appl. Phys. Lett. 104, 131105 (2014)
Article history
Received:
January 16 2014
Accepted:
March 20 2014
Citation
W. Streyer, S. Law, A. Rosenberg, C. Roberts, V. A. Podolskiy, A. J. Hoffman, D. Wasserman; Engineering absorption and blackbody radiation in the far-infrared with surface phonon polaritons on gallium phosphide. Appl. Phys. Lett. 31 March 2014; 104 (13): 131105. https://doi.org/10.1063/1.4870255
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