Tingan Li
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Hillslope grain size variation across evolving landscapes linked to climate, tectonics and lithology Open
The grain size of bedload sediment regulates rates of river incision into bedrock and thus influences topographic response to temporal and spatial variations in climate, tectonics and lithology. Grain size in river networks, in turn, depen…
Experiments on Constriction‐Pool‐Widening Morphology in Bedrock Canyons Open
Bedrock rivers often alternate between relatively wide unconstrained reaches and conspicuously narrow deep incised bedrock reaches (canyons). These bedrock canyons exhibit a constriction‐pool‐widening (CPW) morphology that consists of a la…
Steady‐State Bedrock Channel Width Open
The increase in bedrock channel width and the decline in bedrock channel slope with increasing drainage area are fundamental characteristics of mountainous landscapes. Compared with slope, little is known about controls on steady‐state bed…
Metasurface‐Based Orbital Angular Momentum Multi‐Dimensional Demultiplexer and Decoder Open
Light beams possess various dimensions, such as wavelength, spin angular momentum (SAM), and orbital angular momentum (OAM), which are indispensable in numerous optical applications. However, traditional techniques entail multiple attempts…
Structural control of bedrock river alignment and morphology in the Fraser Canyon, British Columbia, Canada Open
Many rivers worldwide follow faults because they exploit bedrock damage that occurs in fault zones. However, there has been no quantitative investigation of how closely rivers follow specific faults within a fault zone. Analysis of the Fra…
Lateral Erosion of Bedrock Channel Banks by Bedload and Suspended Load Open
Bedrock rivers carry large amounts of fine sediment in suspension. We developed a mechanistic model for erosion of bedrock channel banks by impacting bedload and suspended load particles that are advected laterally by turbulent eddies (adv…
Multi-foci metalens for spectra and polarization ellipticity recognition and reconstruction Open
Multispectral and polarized focusing and imaging are key functions that are vitally important for a broad range of optical applications. Conventional techniques generally require multiple shots to unveil desired optical information and are…
QAM signal with electric field sensor based on thin-film lithium niobate [Invited] Open
Large-bandwidth, high-sensitivity, and large dynamic range electric field sensors are gradually replacing their traditional counterparts. The lithium-niobate-on-insulator (LNOI) material has emerged as an ideal platform for developing such…
Data and code for An analytical model for lateral erosion from saltating bedload particle impacts Open
Excel files and Matlab code for An analytical model for lateral erosion from saltating bedload particle impacts published in JGR Earth Surface
A mechanistic model for bedrock undercut from saltating bedload particle impacts Open
Bedrock walls can be undercut by saltating bedload particle impacts that are deflected by alluvial cover. Continued undercutting of the lower wall creates an imbalance on the wall and may cause the upper part to collapse and to widen the w…
High-efficient coupler for thin-film lithium niobate waveguide devices Open
Lithium niobate (LN) devices have been widely used in optical communication and nonlinear optics due to its attractive optical properties. The emergence of the thin-film lithium niobate on insulator (LNOI) improves performances of LN-based…
Supplementary document for Efficient polarization splitter-rotator on thin film lithium niobate - 5510361.pdf Open
Fabrication process and grating couplers measurement
Supplementary document for High-efficient coupler for thin-film lithium niobite waveguide devices - 5076045.pdf Open
Additional information
An analytical model for lateral erosion from saltating bedload particle impacts Open
Here are my codes and dataset for the paper “An analytical model for lateral erosion from saltating bedload particle impacts”.
High-efficient and polarization independent edge coupler for thin-film lithium niobite waveguide devices Open
Lithium niobate (LN) devices have been widely used in optical communication and nonlinear optics due to its attractive optical properties. The emergence of thin-film lithium niobate on insulator (LNOI) improves performances of LN-based dev…
Dynamic 3D meta-holography in visible range with large frame number and high frame rate Open
A space channel design approach achieves dynamic meta-holography with high frame rate and large frame number.
A mechanistic model for lateral erosion of bedrock channel banks by bedload particle impacts Open
Bedrock rivers get wider by lateral erosion. Lateral erosion is widely thought to occur when the bed is covered by alluvium, which deflects the downstream transport of bedload particles into channel walls. Here we develop a model for later…
Struggles with stream power: Connecting theory across scales Open
Two empirically consistent explanations exist for the morphology and dynamics of bedrock rivers. The stream power law appears to explain rates of rock incision at large scale (large drainage basins or landscape scale), but appears to be of…