Geometric filterless photodetectors for mid-infrared spin light

Wei, Jingxuan; Chen, Yang; Li, Ying; Li, Wei; Xie, Junsheng; Lee, Chengkuo; Novoselov, Kostya S.; Qiu, Cheng‐Wei

doi:10.1038/s41566-022-01115-7

Cited by 47 publications

(30 citation statements)

References 49 publications

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“…4 Plasmonic−nanostructure arrays show excellent circularly polarized light selection; however, the absorbance is low, and the device fabrication remains a challenge, especially large-scale devices. 5,6 In recent years, hybrid perovskite materials consisting of organic chiral molecules and an inorganic framework provide new freedom for circularly polarized light detection. 7−9 In combination with symmetry restriction endowed by organic chiral molecules and excellent semiconductor properties from the inorganic framework, chiral hybrid perovskite provides an ideal material for the construction of a direct circularly polarized light detector.…”

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confidence: 99%

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Symmetry-Broken 2D Lead–Tin Mixed Chiral Perovskite for High Asymmetry Factor Circularly Polarized Light Detection

et al. 2023

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Symmetry-broken-induced spin splitting plays a key role for selective circularly polarized light absorption and spin carrier transport. Asymmetrical chiral perovskite is rising as the most promising material for direct semiconductor-based circularly polarized light detection. However, the increase of asymmetry factor and extension of response region remain to be a challenge. Herein, we fabricated a two-dimensional tin−lead mixed chiral perovskite with tunable absorption in the visible region. Theoretical simulation indicates that the mixing of the tin and lead in chiral perovskite breaks the symmetry of the pure ones, resulting in pure spin splitting. We then fabricated a chiral circularly polarized light detector based on this tin−lead mixed perovskite. A high asymmetry factor for the photocurrent of 0.44 is achieved, which is 144% higher than pure lead 2D perovskite, and it is the highest value reported for the pure chiral 2D perovskite-based circularly polarized light detector using a simple device structure.

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confidence: 99%

“…Traditional inorganic semiconductors show excellent electrical properties; however, it is difficult to include intrinsic chirality in them . Plasmonic–nanostructure arrays show excellent circularly polarized light selection; however, the absorbance is low, and the device fabrication remains a challenge, especially large-scale devices. , …”

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confidence: 99%

Symmetry-Broken 2D Lead–Tin Mixed Chiral Perovskite for High Asymmetry Factor Circularly Polarized Light Detection

et al. 2023

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“…Circularly polarized luminescence is a chiral emission phenomenon from excited-state emitters, originating from the light-matter interactions under chirality control. Compared with the traditional achiral luminescent materials of unpolarized light or linearly polarized light emissions, circularly polarized luminescence materials are expected to exhibit unique functions in 3D displays, [55][56][57][58] polarization-based photonic chips [59][60][61][62][63][64][65] and quantum communications, [66][67][68][69][70] which have aroused wide research interest among supramolecular chemists, photonic chemists, physicists and materials scientists. Chiral macrocycles possess a confined three-dimensional space with asymmetric surroundings, and thus may enable effective chirality control on circularly polarized emission, providing a powerful new strategy to fabricate highperformance CPL materials.…”

Section: Xuefeng Zhumentioning

confidence: 99%

Circularly polarized luminescence from chiral macrocycles and their supramolecular assemblies

Zhu

Ouyang

et al. 2023

Mater. Chem. Front.

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“…[ 10–12 ] As nanostructures capable of obtaining full‐Stokes parameters in a single snapshot, and artificially designed meta‐atoms can be integrated directly with complementary metal oxide semiconductors (CMOS). [ 13–17 ] Related applications that have been demonstrated include circular polarization detection, [ 12–14 ] full polarization measurements, [ 18–21 ] polarization imaging, [ 22–24 ] and so on. Pors et al.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, exploring techniques for characterizing polarization states is critical full-Stokes parameters in a single snapshot, and artificially designed meta-atoms can be integrated directly with complementary metal oxide semiconductors (CMOS). [13][14][15][16][17] Related applications that have been demonstrated include circular polarization detection, [12][13][14] full polarization measurements, [18][19][20][21] polarization imaging, [22][23][24] and so on. Pors et al successfully reconstructed the full-Stokes parameter matrix in the visible range using a reflective plasmonic meta-grating.…”

Section: Introductionmentioning

confidence: 99%

Polarization Detection of Terahertz Waves using All‐Silicon Metasurfaces with Tightly Focusing Behavior

Zheng

Duan

et al. 2023

Laser & Photonics Reviews

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The manipulation of polarization states is reflected in the tailoring of light–matter interactions and has great applications in fundamental science. Nevertheless, the conventional polarization‐separated detection behavior in the terahertz (THz) band is very challenging when applied to visualize the incident polarization state since its measurement requires sophisticated instrumentation. Here, the feasibility of its reconstruction of the full‐Stokes parameter matrix in the THz band is explored by establishing an all‐silicon decoupled metasurface based on the polarization multiplexing encoding technique. The pixelated focal spots gathered in the target plane allow us to employ more elaborate methods to extract the characteristic parameters of the incident polarization states. The resolvability of the THz polarization detection behavior with a single focal spot is further optimized benefiting from the longitudinal polarization component (Ez) generated by the tightly focused beam in the propagation direction. The capability of the Ez‐component in determining the key parameters that compose the polarization ellipse is evaluated by predefining the random incident polarization on a standard Poincaré sphere. Thus, the proposed scheme offers significant advantages in future THz communications, providing opportunities for ultra‐compact, high‐resolution full‐Stokes polarization imaging and multidimensional information processing.

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Geometric filterless photodetectors for mid-infrared spin light

Cited by 47 publications

References 49 publications

Symmetry-Broken 2D Lead–Tin Mixed Chiral Perovskite for High Asymmetry Factor Circularly Polarized Light Detection

Symmetry-Broken 2D Lead–Tin Mixed Chiral Perovskite for High Asymmetry Factor Circularly Polarized Light Detection

Circularly polarized luminescence from chiral macrocycles and their supramolecular assemblies

Polarization Detection of Terahertz Waves using All‐Silicon Metasurfaces with Tightly Focusing Behavior

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