Geometric Doppler Effect: Spin-Split Dispersion of Thermal Radiation

Dahan, Nir; Gorodetski, Yuri; Frischwasser, Kobi; Kleiner, Vladimir; Hasman, Erez

doi:10.1103/physrevlett.105.136402

Cited by 82 publications

(57 citation statements)

References 23 publications

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“…In recent years, significant efforts have been devoted to the use of engineered photonic structures, including photonic crystals [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26], optical antennas [27][28][29] and metamaterials [30][31][32], for the control of thermal radiation properties. Photonic structures can exhibit thermal radiation properties that are significantly different from naturally occurring materials.…”

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confidence: 99%

Near-complete violation of detailed balance in thermal radiation

2014

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confidence: 99%

Near-complete violation of detailed balance in thermal radiation

2014

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“…Reprinted from Ref. [108]. (B) Schematic set-up for the spin-projected dispersion based on 2D Rashba-like metasurface.…”

Section: Discussionmentioning

confidence: 99%

“…Figure 12A shows a 1D case, in which the structure is rotated from one cell to the next. It causes a spin-splitting of the surface-wave (phonon-polariton) dispersion, which in turns causes a spin-splitting in the absorption spectrum and the thermal radiation bands (see Figure 12A) [108,109]. A more Rashba-like band structure with spin-split parabolic bands in two dimensions can be obtained using a nanoslot array with rotated orientation angle in a 2D kagome lattice (see Figure 12B) [110].…”

Section: Symmetry-related Applications With Spin-orbit Interactionmentioning

confidence: 99%

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Spin-dependent optics with metasurfaces

et al. 2016

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Optical spin-Hall effect (OSHE) is a spindependent transportation phenomenon of light as an analogy to its counterpart in condensed matter physics. Although being predicted and observed for decades, this effect has recently attracted enormous interests due to the development of metamaterials and metasurfaces, which can provide us tailor-made control of the light-matter interaction and spin-orbit interaction. In parallel to the developments of OSHE, metasurface gives us opportunities to manipulate OSHE in achieving a stronger response, a higher efficiency, a higher resolution, or more degrees of freedom in controlling the wave front. Here, we give an overview of the OSHE based on metasurface-enabled geometric phases in different kinds of configurational spaces and their applications on spin-dependent beam steering, focusing, holograms, structured light generation, and detection. These developments mark the beginning of a new era of spin-enabled optics for future optical components.

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“…This fact has inspired researchers to generate similar techniques for controlling the near-field thermal transfer similar to the ones that have been developed for controlling thermal emission [5][6][7][8] . Such efforts have lead to the design of nanostructures for a variety of applications such as thermal rectifiers 9 , thermal diodes 10 , and near-field thermal transistors 11 .…”

Section: Introductionmentioning

confidence: 99%

Effect of shape in near-field thermal transfer for periodic structures

2015

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In this paper, the effect of the geometrical shape on the radiative thermal transfer between a periodic array of beams and a planar substrate is investigated. Specifically, we analyze the changes in the thermal transfer that occur when the cross sectional shape of SiC beams is modified from rectangular to ellipsoidal and finally triangular. Numerical calculations are done based on the rigorous coupled wave analysis. These exact results from this analysis are compared to modified proximity and far-field approximations, which become valid for small and large spacings, respectively. Moreover, these results are also compared to effective medium theory, which becomes increasingly accurate in the limit of small periodicities. We show that a reduction in the periodicity will lead to a reduced thermal transfer for triangular and ellipsoidal shaped beams. Even though, in the limit of very small periodicity, thermal transfer for the case of rectangular shaped beams also decreases by decreasing the periodicity but this decrease is more slowly as compared to other cross sectional shapes. Finally, we show that even though changing periodicity will change the magnitude of thermal transfer, the scaling law for its variation with the beam to substrate spacing is primarily determined by the cross sectional shape rather than the periodicity. We analytically prove this fact by investigating the large and small periodicity regimes. INTRODUCTION:

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Geometric Doppler Effect: Spin-Split Dispersion of Thermal Radiation

Cited by 82 publications

References 23 publications

Near-complete violation of detailed balance in thermal radiation

Near-complete violation of detailed balance in thermal radiation

Spin-dependent optics with metasurfaces

Effect of shape in near-field thermal transfer for periodic structures

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