Evaluation of Spiral-Shaped Photonic Crystal Fiber’s Performance in Nonlinear Optical Applications Research Background and Problem Statement Photonic crystal fiber (Photonic Crystal Fiber, PCF) is a new type of optical waveguide with unique microstructures. The periodic arrangement of air holes within it enables it to achieve optical properties tha...

Large Electron-Mediated Phonon Nonlinearity in Semiconductor-Piezoelectric Heterostructures In modern science and technology, the efficiency and determinacy of information processing are crucial determinants of its application potential. Nonlinear photonic interactions at optical frequencies have already demonstrated significant breakthroughs in bo...