Quasi-coherent thermal emitter based on refractory plasmonic materials

Jingjing Liu; Urcan Guler; Alexei Lagutchev; Alexander Kildishev; Oana Malis; Alexandra Boltasseva; Vladimir M. Shalaev

doi:10.1364/ome.5.002721

Quasi-coherent thermal emitter based on refractory plasmonic materials

Jingjing Liu, Urcan Guler, Alexei Lagutchev, Alexander Kildishev, Oana Malis, Alexandra Boltasseva, Vladimir M. Shalaev

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Abstract

The thermal emission of refractory plasmonic metamaterial - a titanium nitride 1D grating - is studied at high operating temperature (540 degrees C). By choosing a refractory material, we fabricate thermal gratings with high brightness that are emitting mid-infrared radiation centered around 3 mu m. We demonstrate experimentally that the thermal excitation of plasmon-polariton on the surface of the grating produces a well-collimated beam with a spatial coherence length of 32 lambda (angular divergence of 1.8 degrees) which is quasi-monochromatic with a full width at half maximum of 70 nm. These experimental results show good agreement with a numerical model based on a two-dimensional full-wave analysis in frequency domain. (C)2015 Optical Society of America

Original language	English
Journal	Optical Materials Express
Volume	5
Issue number	12
Pages (from-to)	2721-2728
ISSN	2159-3930
DOIs	https://doi.org/10.1364/ome.5.002721
Publication status	Published - 2015

Keywords

MATERIALS
OPTICS
BROAD-BAND
EMISSION
RADIATION
LIGHT
physics.optics

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abstract = "The thermal emission of refractory plasmonic metamaterial - a titanium nitride 1D grating - is studied at high operating temperature (540 degrees C). By choosing a refractory material, we fabricate thermal gratings with high brightness that are emitting mid-infrared radiation centered around 3 mu m. We demonstrate experimentally that the thermal excitation of plasmon-polariton on the surface of the grating produces a well-collimated beam with a spatial coherence length of 32 lambda (angular divergence of 1.8 degrees) which is quasi-monochromatic with a full width at half maximum of 70 nm. These experimental results show good agreement with a numerical model based on a two-dimensional full-wave analysis in frequency domain. (C)2015 Optical Society of America",

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T1 - Quasi-coherent thermal emitter based on refractory plasmonic materials

AU - Liu, Jingjing

AU - Guler, Urcan

AU - Lagutchev, Alexei

AU - Kildishev, Alexander

AU - Malis, Oana

AU - Boltasseva, Alexandra

AU - Shalaev, Vladimir M.

PY - 2015

Y1 - 2015

N2 - The thermal emission of refractory plasmonic metamaterial - a titanium nitride 1D grating - is studied at high operating temperature (540 degrees C). By choosing a refractory material, we fabricate thermal gratings with high brightness that are emitting mid-infrared radiation centered around 3 mu m. We demonstrate experimentally that the thermal excitation of plasmon-polariton on the surface of the grating produces a well-collimated beam with a spatial coherence length of 32 lambda (angular divergence of 1.8 degrees) which is quasi-monochromatic with a full width at half maximum of 70 nm. These experimental results show good agreement with a numerical model based on a two-dimensional full-wave analysis in frequency domain. (C)2015 Optical Society of America

AB - The thermal emission of refractory plasmonic metamaterial - a titanium nitride 1D grating - is studied at high operating temperature (540 degrees C). By choosing a refractory material, we fabricate thermal gratings with high brightness that are emitting mid-infrared radiation centered around 3 mu m. We demonstrate experimentally that the thermal excitation of plasmon-polariton on the surface of the grating produces a well-collimated beam with a spatial coherence length of 32 lambda (angular divergence of 1.8 degrees) which is quasi-monochromatic with a full width at half maximum of 70 nm. These experimental results show good agreement with a numerical model based on a two-dimensional full-wave analysis in frequency domain. (C)2015 Optical Society of America

KW - MATERIALS

KW - OPTICS

KW - BROAD-BAND

KW - EMISSION

KW - RADIATION

KW - LIGHT

KW - physics.optics

U2 - 10.1364/ome.5.002721

DO - 10.1364/ome.5.002721

M3 - Journal article

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VL - 5

SP - 2721

EP - 2728

JO - Optical Materials Express

JF - Optical Materials Express

IS - 12

ER -

Quasi-coherent thermal emitter based on refractory plasmonic materials

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