Researchers report a photonic higher-order topological insulator whose boundary states arise from Sierpiński-gasket geometry itself, rather than from added synthetic gauge fields or temporal modulation.
Fractal Geometry Becomes a Route to Photonic Topological Boundary States 阅读更多 »
Researchers report a free-running single-cavity dual-comb laser with Hz-level relative linewidth and millisecond-scale molecular spectroscopy, pointing to a compact path for line-shape-resolved gas sensing.
Symmetry-Engineered Fiber Laser Delivers Hz-Level Mutual Coherence for Dual-Comb Sensing 阅读更多 »
A new SNR budget for hollow-core fiber suggests that distributed inter-modal interference, not Kerr nonlinearity, is the main limiter for higher-order QAM. The study outlines how low dispersion and near-vacuum nonlinearity could extend 1024-QAM reach far beyond standard single-mode fiber, while still leaving practical constraints for 2048-QAM and 4096-QAM at 32 GBaud.
Modeling the Real Limits of Higher-Order QAM in Hollow-Core Fiber 阅读更多 »
A new study demonstrates millimeter-scale silicon nitride lightsails with nanoscale thickness, high reflectivity, and measurable motion under intense laser illumination, pointing to a practical testbed for directed-energy propulsion and high-power nanophotonics.
High-Power Laser Moves Ultra-Thin Photonic Crystal Lightsails Through Radiation Pressure 阅读更多 »
Researchers report that caustic microlensing in a liquid jet can concentrate light for linear imaging, strengthen surface-sensitive nonlinear effects, and drive gigapascal shocks with microjoule femtosecond pulses, suggesting a compact platform for ultrafast and high-energy-density photonics.
Caustic-Driven Fluidic Microlenses Open a New Route to Localized Light and Shock Generation 阅读更多 »
Researchers report a spatiotemporally structured laser pulse that can drive a wake at the vacuum speed of light inside a plasma waveguide, reducing dephasing while preserving a constant spot size and ultrashort duration.
Plasma Waveguide Design Points to Dephasing-Free Laser Wakefield Acceleration 阅读更多 »
A new process study describes how optimized ICP-RIE thinning can turn bonded diamond membranes into photonic-grade diamond-on-insulator substrates, while a colorimetry method offers a fast way to estimate thickness from standard microscope images.
A look at recent photonics signals: compact UV dual-comb spectroscopy, design-tool consolidation, and progress in mid-infrared semiconductor lasers.
A metalens-based confocal imaging approach uses color-dependent focusing to reduce mechanical axial scanning and point toward compact 3D optical inspection systems.
Industry Brief: Metalens Confocal Imaging Reduces the Need for Mechanical Axial Scanning 阅读更多 »
METSCAN-30SS-I 是一种超高速、大孔径、高精度激光振镜系统，采用创新的数字驱动算法。即使只有 30 毫米的透明孔径，它也能达到 200 rad/s 的惊人最大扫描速度。该系统采用全封闭外壳设计，大大提高了激光加工的稳定性和可靠性。配备轻质反射镜
