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Article
Open AccessInfrared fingerprints of few-layer black phosphorus
Black phosphorus is an infrared layered material. Its bandgap complements other widely studied two-dimensional materials: zero-gap graphene and visible/near-infrared gap transition metal dichalcogenides. Altho...
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Article
Open AccessRepeated Failure in Reward Pursuit Alters Innate Drosophila Larval Behaviors
Animals always seek rewards and the related neural basis has been well studied. However, what happens when animals fail to get a reward is largely unknown, although this is commonly seen in behaviors such as p...
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Article
Open AccessStrain-tunable van der Waals interactions in few-layer black phosphorus
Interlayer interactions in 2D materials, also known as van der Waals (vdWs) interactions, play a critical role in the physical properties of layered materials. It is fascinating to manipulate the vdWs interact...
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Article
The phenomenology of remembering our moral transgressions
People tend to believe that they truly are morally good, and yet they commit moral transgressions with surprising frequency in their everyday lives. To explain this phenomenon, some theorists have suggested th...
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Article
Open AccessVan der Waals thin films of WTe2 for natural hyperbolic plasmonic surfaces
A hyperbolic plasmonic surface supports highly directional propagating polaritons with extremely large density of states. Such plasmon polaritons have been realized in artificially structured metasurfaces. How...
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Article
Open AccessThe optical conductivity of few-layer black phosphorus by infrared spectroscopy
The strength of light-matter interaction is of central importance in photonics and optoelectronics. For many widely studied two-dimensional semiconductors, such as MoS2, the optical absorption due to exciton reso...
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Article
Open AccessPlasmons in the van der Waals charge-density-wave material 2H-TaSe2
Plasmons in two-dimensional (2D) materials beyond graphene have recently gained much attention. However, the experimental investigation is limited due to the lack of suitable materials. Here, we experimentally...
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Article
Open AccessIncorporating dynamic flight network in SEIR to model mobility between populations
Current efforts of modelling COVID-19 are often based on the standard compartmental models such as SEIR and their variations. As pre-symptomatic and asymptomatic cases can spread the disease between population...
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Article
Open AccessPrediction of hyperbolic exciton-polaritons in monolayer black phosphorus
Hyperbolic polaritons exhibit large photonic density of states and can be collimated in certain propagation directions. The majority of hyperbolic polaritons are sustained in man-made metamaterials. However, n...
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Article
Open AccessUltra-sensitive polarization-resolved black phosphorus homojunction photodetector defined by ferroelectric domains
With the further miniaturization and integration of multi-dimensional optical information detection devices, polarization-sensitive photodetectors based on anisotropic low-dimension materials have attractive p...
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Chapter and Conference Paper
Fast and Attributed Change Detection on Dynamic Graphs with Density of States
How can we detect traffic disturbances from international flight transportation logs, or changes to collaboration dynamics in academic networks? These problems can be formulated as detecting anomalous change p...
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Article
Open AccessTunable optical topological transitions of plasmon polaritons in WTe2 van der Waals films
Naturally existing in-plane hyperbolic polaritons and the associated optical topological transitions, which avoid the nano-structuring to achieve hyperbolicity, can outperform their counterparts in artificial ...
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Article
Open AccessLayer-dependent exciton polarizability and the brightening of dark excitons in few-layer black phosphorus
The evolution of excitons from 2D to 3D is of great importance in photo-physics, yet the layer-dependent exciton polarizability hasn’t been investigated in 2D semiconductors. Here, we determine the exciton pol...
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Article
The Role of Structure-Seeking in Moral Punishment
Four studies (total N = 1586) test the notion that people are motivated to punish moral rule violators because punishment offers a way to obtain structure and order in the world. First, in a correlational study, ...
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Article
Pressure-induced color change arising from transformation between intra- and inter-band transitions in LuH2±xNy
The pressure-induced color change in the nitrogen-doped lutetium hydride has triggered extensive discussions about the underlying physics and potential applications. Here, we study the optical response of LuH2±xN
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Article
Open AccessTunable anisotropic van der Waals films of 2M-WS2 for plasmon canalization
In-plane anisotropic van der Waals materials have emerged as a natural platform for anisotropic polaritons. Extreme anisotropic polaritons with in-situ broadband tunability are of great significance for on-chi...
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Article
Seeded growth of single-crystal black phosphorus nanoribbons
Two-dimensional materials have emerged as an important research frontier for overcoming the challenges in nanoelectronics and for exploring new physics. Among them, black phosphorus, with a combination of a tu...
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Article
Open AccessCounterfactual thinking induces different neural patterns of memory modification in anxious individuals
Episodic counterfactual thinking (eCFT) is the process of mentally simulating alternate versions of experiences, which confers new phenomenological properties to the original memory and may be a useful therape...
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Article
Open AccessStatic graph approximations of dynamic contact networks for epidemic forecasting
Epidemic modeling is essential in understanding the spread of infectious diseases like COVID-19 and devising effective intervention strategies to control them. Recently, network-based disease models have integ...
