Space-variant polarization manipulation of a thermal emission by a SiO2 subwavelength grating supporting surface phonon-polaritons

Dahan, Nir; Niv, Avi; Biener, Gabriel; Kleiner, Vladimir; Hasman, Erez

doi:10.1063/1.1922084

Cited by 66 publications

(39 citation statements)

References 13 publications

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“…Many other schemes have been subsequently implemented using planar interfaces [17][18][19][20], guided waves and gratings [21], photonic crystals [22], and magnetic polaritons [23]. Following the pioneering work by the group of Hasman [24], the polarization of thermal radiation has been investigated [25][26][27]. Finally, it has become possible to modulate at high frequency the intensity emitted by thermal sources by modulating the emissivity [28].…”

Section: Introductionmentioning

confidence: 99%

Light Emission by Nonequilibrium Bodies: Local Kirchhoff Law

et al. 2018

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The goal of this paper is to introduce a local form of Kirchhoff law to model light emission by nonequilibrium bodies. While absorption by a finite-size body is usually described using the absorption cross section, we introduce a local absorption rate per unit volume and also a local thermal emission rate per unit volume. Their equality is a local form of Kirchhoff law. We revisit the derivation of this equality and extend it to situations with subsystems in local thermodynamic equilibrium but not in equilibrium between them, such as hot electrons in a metal or electrons with different Fermi levels in the conduction band and in the valence band of a semiconductor. This form of Kirchhoff law can be used to model (i) thermal emission by nonisothermal finite-size bodies, (ii) thermal emission by bodies with carriers at different temperatures, and (iii) spontaneous emission by semiconductors under optical (photoluminescence) or electrical pumping (electroluminescence). Finally, we show that the reciprocity relation connecting light-emitting diodes and photovoltaic cells derived by Rau is a particular case of the local Kirchhoff law.

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Section: Introductionmentioning

confidence: 99%

Light Emission by Nonequilibrium Bodies: Local Kirchhoff Law

et al. 2018

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“…At those wavelengths the real part of their permittivity is smaller than -1 which assures the existence of SPPs. A periodic cavity structures were formed using photolithographic techniques [13]. An atomic force microscope (AFM) image of the obtained periodic cavities upon SiO 2 is shown in Fig.…”

Section: Experimental Results and Analysismentioning

confidence: 99%

Enhanced coherency of thermal emission by coupled resonant cavities supporting surface waves

et al. 2008

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Surface waves have been shown to play a key role in spontaneous thermal emission in the near-field as well as the coherence and the polarization properties of the nonradiative field. The near-field coherence of the delocalized nonradiative surface waves can be transferred into radiative fields by introducing a shallow grating on the surface. We show that the coherency of the thermal radiation can be enhanced by an order of magnitude compared with the coherency imposed by the delocalized surface waves. The enhanced coherency is due to coherent coupling between resonant cavities obtained by surface standing waves, where each cavity supports localized field that is attributed to coupled surface waves. We realized coupled resonant cavity structure on amorphous SiO 2 and crystalline SiC, both support surface phonon-polaritons, to demonstrate extraordinary coherent thermal emission with a high quality factor of 600 and a spatial coherence length of 760λ (8.8mm).

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“…Modified Planck radiation has been demonstrated by using one-dimensional (1D) lattices of deep and wide gutters 3 , shallow 1D gratings [4][5][6][7][8] , and two-dimensional [9][10][11][12][13] or three-dimensional 14 photonic crystals. The last scheme, a narrow and deep 1D metallic grating, has attracted special interest as a linearly polarized, angle-independent, and narrow-band emitter applicable to a wide wavelength range 4,11,12 .…”

Section: Introductionmentioning

confidence: 99%

Controlled thermal emission of two-color polarized infrared light from arrayed plasmon nanocavities

Ikeda¹,

Miyazaki

Kasaya

et al. 2008

SPIE Proceedings

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We have developed thermal emitters of linearly polarized and narrow-band mid-infrared light based on highly controlled plasmon resonance in narrow and deep rectangular Au gratings. This optical source is a series of onedimensional metal-insulator-metal optical cavities with a closed end. This characteristic results in the control of the thermal radiation, emitting a narrow infrared spectrum at a specific wavelength of 2.5-5.5 micro-meters. The wavelength is specified 100nm wide, 1000nm deep dimensions of the cavity were accurately manufactured. The maximum emittance reaches 0.90, and the FWHM/wavelength of the peak is as narrow as 0.13-0.23. Furthermore, we have demonstrated simple chemical analysis based on orthogonally polarized two-color infrared waves emitted from an integrated grating. This simple emitter is expected to play a key role in the infrared sensing technologies for analyzing our environment.

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Space-variant polarization manipulation of a thermal emission by a SiO2 subwavelength grating supporting surface phonon-polaritons

Cited by 66 publications

References 13 publications

Light Emission by Nonequilibrium Bodies: Local Kirchhoff Law

Light Emission by Nonequilibrium Bodies: Local Kirchhoff Law

Enhanced coherency of thermal emission by coupled resonant cavities supporting surface waves

Controlled thermal emission of two-color polarized infrared light from arrayed plasmon nanocavities

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