HAWK: Rapid Android Malware Detection through Heterogeneous Graph Attention Networks

Kavli Affiliate: Lihong Wang | First 5 Authors: Yiming Hei, Renyu Yang, Hao Peng, Lihong Wang, Xiaolin Xu | Summary: Android is undergoing unprecedented malicious threats daily, but the existing methods for malware detection often fail to cope with evolving camouflage in malware. To address this issue, we present HAWK, a new malware detection framework […]


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Towards Understanding Theoretical Advantages of Complex-Reaction Networks

Kavli Affiliate: Wei Gao | First 5 Authors: Shao-Qun Zhang, Wei Gao, Zhi-Hua Zhou, , | Summary: Complex-valued neural networks have attracted increasing attention in recent years, while it remains open on the advantages of complex-valued neural networks in comparison with real-valued networks. This work takes one step on this direction by introducing the emph{complex-reaction […]


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Temporal Walk-off Induced Dissipative Quadratic Solitons

Kavli Affiliate: Alireza Marandi | First 5 Authors: Arkadev Roy, Rajveer Nehra, Saman Jahani, Luis Ledezma, Carsten Langrock | Summary: A plethora of applications have recently motivated extensive efforts on the generation of low noise Kerr solitons and coherent frequency combs in various platforms ranging from fiber to whispering gallery and integrated microscale resonators. However, […]


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Optical phased array neural probes for beam-steering in brain tissue

Kavli Affiliate: Michael L. Roukes | First 5 Authors: Wesley D. Sacher, Fu-Der Chen, Homeira Moradi-Chameh, Xinyu Liu, Ilan Felts Almog | Summary: Implantable silicon neural probes with integrated nanophotonic waveguides can deliver patterned dynamic illumination into brain tissue at depth. Here, we introduce neural probes with integrated optical phased arrays and demonstrate optical beam […]


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Measuring photoexcited electron and hole dynamics in ZnTe and modeling excited state core-valence effects in transient XUV reflection spectroscopy

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Hanzhe Liu, Jonathan M. Michelsen, Isabel M. Klein, Scott K. Cushing, | Summary: Transient XUV spectroscopy is growing in popularity for the measurement of solar fuel and photovoltaic materials as it can separately measure electron and hole energies for multiple elements at once. However, interpretation of […]


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Topological Optical Parametric Oscillation

Kavli Affiliate: Alireza Marandi | First 5 Authors: Arkadev Roy, Midya Parto, Rajveer Nehra, Christian Leefmans, Alireza Marandi | Summary: Topological insulators possess protected boundary states which are robust against disorders and have immense implications in both fermionic and bosonic systems. Harnessing these topological effects in non-equilibrium scenarios is highly desirable and has led to […]


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Mechanical Cloak via Data-Driven Aperiodic Metamaterial Design

Kavli Affiliate: Chiara Daraio | First 5 Authors: Liwei Wang, Jagannadh Boddapati, Ke Liu, Ping Zhu, Chiara Daraio | Summary: Mechanical cloaks are materials engineered to manipulate the elastic response around objects to make them indistinguishable from their homogeneous surroundings. Typically, methods based on material-parameter transformations are used to design optical, thermal and electric cloaks. […]


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Strong Negative Electrothermal Feedback in Thermal Kinetic Inductance Detectors

Kavli Affiliate: James J. Bock | First 5 Authors: Shubh Agrawal, Bryan Steinbach, James J. Bock, Clifford Frez, Lorenzo Minutolo | Summary: We demonstrate strong negative electrothermal feedback accelerating and linearizing the response of a thermal kinetic inductance detector (TKID). TKIDs are a proposed highly multiplexable replacement to transition-edge sensors and measure power through the […]


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Femtojoule, femtosecond all-optical switching in lithium niobate nanophotonics

Kavli Affiliate: Alireza Marandi | First 5 Authors: Qiushi Guo, Ryoto Sekine, Luis Ledezma, Rajveer Nehra, Devin J. Dean | Summary: Optical nonlinear functions are crucial for various applications in integrated photonics, such as all-optical information processing, photonic neural networks and on-chip ultrafast light sources. Due to the weak nonlinearities in most integrated photonic platforms, […]


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Constraining continuous topology optimizations to discrete solutions for photonic applications

Kavli Affiliate: Andrei Faraon | First 5 Authors: Conner Ballew, Gregory Roberts, Tianzhe Zheng, Andrei Faraon, | Summary: Photonic topology optimization is a technique used to find the electric permittivity distribution of a device that optimizes an electromagnetic figure-of-merit. Two common techniques are used: continuous density-based optimizations that optimize a grey-scale permittivity defined over a […]


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