Search Results - Hailong Han
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Advances in Autophagy–Lysosomal Pathway and Neurodegeneration via Brain–Gut Axis
Published 2025-06-01Get full text<b>Background/Objectives:</b> The autophagy–lysosomal pathway (ALP) is crucial for neuronal health by clearing misfolded proteins and damaged organelles. While much research has focused on ALP dysfunction in the central nervous system, new evidence shows its importance in the gut, where...
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Cryogenic Photonic Readout Based on Thin-Film Lithium Niobate Mach–Zehnder Modulators
Published 2024-01-01Get full textCryogenic data transfer has numerous applications at 4.2 K for extracting data from supercomputers and quantum computers to address interface bottlenecks. The external modulation of data transmission across temperature zones is achieved through the use of electro-optic modulators. The performance of...
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Enhanced Modal Coupling Loss in a Two-Mode SOI Waveguide of Broken Parity-Time Symmetry
Published 2018-01-01Get full textEffect of optical loss, presented in a superstructure grating with a complex refractive index profile, on the mode coupling is studied in a two-mode silicon-on-insulator waveguide. In this scheme, both our theory and experimental results indicate that the optical loss not only provides optical absor...
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Efficient Second Harmonic Generation by Mode Phase Matching in a Silicon Waveguide
Published 2017-01-01Get full textBulk silicon possesses no second-order susceptibility (χ<sup>(2)</sup>), inhibiting second-order nonlinear processes in the emerging silicon photonic platform. Here, we propose a method to overcome this limitation by enabling a third-order (χ<sup>(3)</sup&g...
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