Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes

Jiangtao Lv; Yingjie Wu; Jingying Liu; Youning Gong; Guangyuan Si; Guangwei Hu; Qing Zhang; Yupeng Zhang; Jian-Xin Tang; Michael S. Fuhrer; Hongsheng Chen; Stefan A. Maier; Cheng-Wei Qiu; Qingdong Ou

doi:10.1038/s41467-023-39543-w

Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes

Jiangtao Lv, Yingjie Wu, Jingying Liu, Youning Gong, Guangyuan Si, Guangwei Hu, Qing Zhang, Yupeng Zhang, Jian-Xin Tang, Michael S. Fuhrer, Hongsheng Chen, Stefan A. Maier, Cheng-Wei Qiu, Qingdong Ou

Research output: Contribution to journal › Article › Research › peer-review

31 Citations (Scopus)

Abstract

Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders. Here, we experimentally demonstrate a type of hyperbolic PoCs with configurable and low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in certain directions. This is achieved by periodically perforating a natural crystal α-MoO₃ that hosts in-plane hyperbolic phonon polaritons. The mode excitation and symmetry are controlled by the momentum matching between reciprocal lattice vectors and hyperbolic dispersions. We show that the Bloch modes and Bragg resonances of hyperbolic PoCs can be tuned through lattice scales and orientations while exhibiting robust properties immune to lattice rearrangement in the hyperbolic forbidden directions. Our findings provide insights into the physics of hyperbolic PoCs and expand the categories of PhCs, with potential applications in waveguiding, energy transfer, biosensing and quantum nano-optics.

Original language	English
Article number	3894
Number of pages	8
Journal	Nature Communications
Volume	14
Issue number	1
DOIs	https://doi.org/10.1038/s41467-023-39543-w
Publication status	Published - 1 Jul 2023

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10.1038/s41467-023-39543-w

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@article{faea0b3f963d4a70b4ea4c5adb46f371,

title = "Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes",

abstract = "Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders. Here, we experimentally demonstrate a type of hyperbolic PoCs with configurable and low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in certain directions. This is achieved by periodically perforating a natural crystal α-MoO3 that hosts in-plane hyperbolic phonon polaritons. The mode excitation and symmetry are controlled by the momentum matching between reciprocal lattice vectors and hyperbolic dispersions. We show that the Bloch modes and Bragg resonances of hyperbolic PoCs can be tuned through lattice scales and orientations while exhibiting robust properties immune to lattice rearrangement in the hyperbolic forbidden directions. Our findings provide insights into the physics of hyperbolic PoCs and expand the categories of PhCs, with potential applications in waveguiding, energy transfer, biosensing and quantum nano-optics.",

author = "Jiangtao Lv and Yingjie Wu and Jingying Liu and Youning Gong and Guangyuan Si and Guangwei Hu and Qing Zhang and Yupeng Zhang and Jian-Xin Tang and Fuhrer, {Michael S.} and Hongsheng Chen and Maier, {Stefan A.} and Cheng-Wei Qiu and Qingdong Ou",

note = "Funding Information: This project was supported by the Science and Technology Development Fund, Macau SAR (No. 0116/2022/A3), the Australian Research Council (DE220100154 and CE170100039), the National Natural Science Foundation of China (Grant No. 62105058) and the Fundamental Research Funds for the Central Universities Key Scientific Research Guidance Project (Grant No. N2023005). The work at Zhejiang University was sponsored by the Key Research and Development Program of the Ministry of Science and Technology (Grants Nos. 2022YFA1404704, 2022YFA1405200, and 2022YFA1404902), the National Natural Science Foundation of China (Grant No. 61975176), the Key Research and Development Program of Zhejiang Province (Grant No. 2022C01036), and the Fundamental Research Funds for the Central Universities. G.H. acknowledges the startup grant from Nanyang Technological University. S.A.M. additionally acknowledges the Lee-Lucas Chair in Physics. This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). Publisher Copyright: {\textcopyright} 2023, Crown.",

year = "2023",

month = jul,

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doi = "10.1038/s41467-023-39543-w",

language = "English",

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T1 - Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes

AU - Lv, Jiangtao

AU - Wu, Yingjie

AU - Liu, Jingying

AU - Gong, Youning

AU - Si, Guangyuan

AU - Hu, Guangwei

AU - Zhang, Qing

AU - Zhang, Yupeng

AU - Tang, Jian-Xin

AU - Fuhrer, Michael S.

AU - Chen, Hongsheng

AU - Maier, Stefan A.

AU - Qiu, Cheng-Wei

AU - Ou, Qingdong

N1 - Funding Information: This project was supported by the Science and Technology Development Fund, Macau SAR (No. 0116/2022/A3), the Australian Research Council (DE220100154 and CE170100039), the National Natural Science Foundation of China (Grant No. 62105058) and the Fundamental Research Funds for the Central Universities Key Scientific Research Guidance Project (Grant No. N2023005). The work at Zhejiang University was sponsored by the Key Research and Development Program of the Ministry of Science and Technology (Grants Nos. 2022YFA1404704, 2022YFA1405200, and 2022YFA1404902), the National Natural Science Foundation of China (Grant No. 61975176), the Key Research and Development Program of Zhejiang Province (Grant No. 2022C01036), and the Fundamental Research Funds for the Central Universities. G.H. acknowledges the startup grant from Nanyang Technological University. S.A.M. additionally acknowledges the Lee-Lucas Chair in Physics. This work was performed in part at the Melbourne Centre for Nanofabrication (MCN) in the Victorian Node of the Australian National Fabrication Facility (ANFF). Publisher Copyright: © 2023, Crown.

PY - 2023/7/1

Y1 - 2023/7/1

N2 - Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders. Here, we experimentally demonstrate a type of hyperbolic PoCs with configurable and low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in certain directions. This is achieved by periodically perforating a natural crystal α-MoO3 that hosts in-plane hyperbolic phonon polaritons. The mode excitation and symmetry are controlled by the momentum matching between reciprocal lattice vectors and hyperbolic dispersions. We show that the Bloch modes and Bragg resonances of hyperbolic PoCs can be tuned through lattice scales and orientations while exhibiting robust properties immune to lattice rearrangement in the hyperbolic forbidden directions. Our findings provide insights into the physics of hyperbolic PoCs and expand the categories of PhCs, with potential applications in waveguiding, energy transfer, biosensing and quantum nano-optics.

AB - Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders. Here, we experimentally demonstrate a type of hyperbolic PoCs with configurable and low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in certain directions. This is achieved by periodically perforating a natural crystal α-MoO3 that hosts in-plane hyperbolic phonon polaritons. The mode excitation and symmetry are controlled by the momentum matching between reciprocal lattice vectors and hyperbolic dispersions. We show that the Bloch modes and Bragg resonances of hyperbolic PoCs can be tuned through lattice scales and orientations while exhibiting robust properties immune to lattice rearrangement in the hyperbolic forbidden directions. Our findings provide insights into the physics of hyperbolic PoCs and expand the categories of PhCs, with potential applications in waveguiding, energy transfer, biosensing and quantum nano-optics.

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DO - 10.1038/s41467-023-39543-w

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SN - 2041-1723

VL - 14

JO - Nature Communications

JF - Nature Communications

IS - 1

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ER -

Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes

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Engineering twisted two-dimensional materials for mid-infrared detectors

ARC Centre of Excellence in Future Low-energy Electronics Technologies

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Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes

Abstract

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Engineering twisted two-dimensional materials for mid-infrared detectors

ARC Centre of Excellence in Future Low-energy Electronics Technologies

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