Entangled-photon experiments and laboratory automation
University of Electronic Science and Technology of China
Built and aligned polarization–path and two-dimensional polarization-entanglement optical setups; balanced single-photon detection channels and performed coincidence measurements. Calibrated liquid-crystal phase retarders and half-wave plates, processed calibration data in MATLAB, and generated phase lookup curves using robust local regression.
Modified and tested a Python interface for a Thorlabs KLC controller, including device communication and parameter-setting functions. Also participated in assembly and on-site validation of an EtherCAT/PLC-based dual-axis motion-control platform.
Selected experimental records
Laser Doppler vibrometer design and simulation
Undergraduate thesis · Beijing Jiaotong University
Designed a heterodyne laser Doppler vibrometer around a Mach–Zehnder interferometer for high-frequency micro-vibration measurements. The study covered the He–Ne source, acousto-optic frequency shifting, balanced detection, and a PLL-based signal-processing chain.
Built a COMSOL ray-optics model to study optical paths, polarization, interference, and Doppler-frequency recovery under uniform and randomly driven motion.
Selected experimental records
Ultrasonic imaging of buried rail defects
National Undergraduate Innovation Training Project · Beijing Jiaotong University
Participated in a National Undergraduate Innovation Training project on ultrasonic phased-array imaging of buried rail-head cracks. The work examined direct and full-skip total-focusing methods, COMSOL wave-field simulation, additively manufactured rail specimens, and experimental imaging with a Verasonics acquisition system.
Co-authored the IEEE Transactions on Instrumentation and Measurement article on localization and quantification of buried rail-web defects.
Selected experimental records
Ternary layer-by-layer polymer solar cells
National Undergraduate Innovation Training Project · Beijing Jiaotong University
Participated in a National Undergraduate Innovation Training project on D18-Cl/Y6/MAZ-2 ternary layer-by-layer polymer solar cells. Work included solution preparation, device-fabrication procedures, and interpretation of photovoltaic and spectroscopic characterization; the ternary devices reached 17.97% power-conversion efficiency in the project data.
Co-authored the related Chemical Engineering Journal article.
Selected experimental records
