Ren-Min Ma
Peking University
Localized surface plasmonSemiconductorPlasmonSpontaneous emissionOpticsPhysicsSemiconductor laser theorySurface plasmonVortexSurface plasmon polaritonNanotechnologyMaterials scienceDiffractionPhotonicsNanophotonicsNanolaserLasing thresholdOptoelectronicsLaserNanowire
113Publications
30H-index
4,998Citations
Publications 108
Newest
#1Zhe Zhang (PKU: Peking University)H-Index: 3
#2Leona Nest (PKU: Peking University)
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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Surface plasmon resonance (SPR) sensors are a prominent means to detect biological and chemical analytes and to investigate biomolecular interactions in various fields. However, the performance of SPR sensors is ultimately limited by ohmic loss, which substantially weakens the resonance signal and broadens the response linewidth. Recent studies have shown that ohmic loss can be fully compensated in plasmonic nanolasers, which leads to a novel class of lasing-enhanced surface plasmon resonance (L...
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#1Ren-Min Ma (PKU: Peking University)H-Index: 30
#2Si-Yi Wang (PKU: Peking University)H-Index: 1
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#1Xin-Rui Mao (PKU: Peking University)H-Index: 2
#2Zengkai Shao (PKU: Peking University)H-Index: 8
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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Conventional laser cavities require discontinuity of material property or disorder to localize a light field for feedback. Recently, an emerging class of materials, twisted van der Waals materials, have been explored for applications in electronics and photonics. Here we propose and develop magic-angle lasers, where the localization is realized in periodic twisted photonic graphene superlattices. We reveal that the confinement mechanism of magic-angle lasers does not rely on a full bandgap but o...
1 CitationsSource
#2Zengkai ShaoH-Index: 8
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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In our Letter (Phys. Rev. Lett. vol. 125, 013903 (2020)), we reported topological vortex lasers based on spin-momentum-locked edge modes. We observed that the near field spin and orbital angular momentum has a one-to-one far-field radiation correspondence of circular polarization and orbital angular momentum respectively. Sun et al. in their Comment (arXiv:2009.04700v1), however, argued that we did not perform numerical simulations on the near field information of our experimentally studied topo...
2 Citations
#1Ren-Min Ma (PKU: Peking University)H-Index: 30
Multiplexing increases the capacity of optical communication, but it is limited by the number of modes and their orbital angular momentum. A robust vortex laser now solves this problem by emitting several beams, all carrying large topological charges.
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#1Zengkai Shao (PKU: Peking University)H-Index: 8
#2Hua-Zhou Chen (PKU: Peking University)H-Index: 10
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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We report on a topological bulk laser based on band-inversion-induced reflection constructed by trivial and topological photonic crystal arrays. It provides a novel lasing mode selection mechanism and renders high-performance laser devices. © 2020 The Author(s)
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#1Yifei Mao (PKU: Peking University)H-Index: 4
#2Ren-Min Ma (PKU: Peking University)H-Index: 30
Plasmonic nanolasers are a new class of laser devices which amplify surface plasmons instead of photons by stimulated emission. Here we demonstrate a room temperature sodium-based plasmonic nanolaser with a record low threshold of 140 kW/cm2 at near-infrared. © 2020 The Author(s)
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#1Hao Jing (NU: Nanjing University)H-Index: 7
#2Ru-Wen Peng (NU: Nanjing University)H-Index: 30
Last. Mu Wang (NU: Nanjing University)H-Index: 34
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Flexible optoelectronic devices attract considerable attention due to their prominent role in creating novel wearable apparatus for bionics, robotics, health care, and so forth. Although bulk single-crystalline perovskite-based materials are well-recognized for the high photoelectric conversion efficiency than the polycrystalline ones, their stiff and brittle nature unfortunately prohibits their application for flexible devices. Here, we introduce ultrathin single-crystalline perovskite film as ...
19 CitationsSource
#1Yu-Hao Deng (PKU: Peking University)H-Index: 4
#2Zhen-Qian Yang (PKU: Peking University)H-Index: 6
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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Modern electronic and photonic devices rely on single-crystalline thin film semiconductors for high performance and reproducibility. The emerging halide perovskites have extraordinary electronic and photonic properties and can be synthesized via low cost solution-based methods. They have been used in a variety of devices with performance approaching or over the devices based on conventional materials. However, their solution based growth method is intrinsically challenge to grow large scale sing...
10 CitationsSource
#1Zhen-Qian Yang (PKU: Peking University)H-Index: 6
#2Zengkai Shao (PKU: Peking University)H-Index: 8
Last. Ren-Min Ma (PKU: Peking University)H-Index: 30
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Spin-momentum locking is a direct consequence of bulk topological order and provides a basic concept to control a carrier's spin and charge flow for new exotic phenomena in condensed matter physics. However, up to date the research on spin-momentum locking solely focuses on its in-plane transport properties. Here, we report an emerging out-of-plane radiation feature of spin-momentum locking in a non-Hermitian topological photonic system and demonstrate a high performance topological vortex laser...
36 CitationsSource