Research Background and Problem Statement With the rapid development of modern optical communication technology, wavelength division multiplexing (WDM) systems play a core role in achieving high-capacity, multifunctional optical networks. Among these, (de)interleavers, as key components of wavelength demultiplexing structures, can efficiently separ...

Academic Background The mid-infrared spectrum range (2.5 to 20 µm) is widely used in gas detection, optical communication, high-quality imaging, bacterial research, and soil composition analysis due to its characteristic absorption peaks of many molecular bonds. Among these applications, waveguide photodetectors have become a key component in photo...

Research on the Design of High Gain Multi-band Circularly Polarized Bi-layered Metasurface Patch Array Antenna Academic Background and Research Motivation Terahertz (THz) band communication has received widespread attention in recent years due to its potential to expand bandwidth in wireless communication systems. However, the application of terahe...

Asymmetric Optical Cryptosystem Based on Coherent Superposition and Normalized Decomposition Background Introduction With the growing demand for information security, optical image encryption technology has attracted significant attention over the past three decades. This technology leverages various degrees of freedom of light (such as amplitude, ...

Event Camera-Based Self-Supervised Shutter Unrolling Method Research Background and Problem Statement In the field of computer vision, recovering undistorted global shutter (GS) videos from rolling shutter (RS) images has been a highly challenging problem. RS cameras, due to their row-by-row exposure mechanism, are prone to spatial distortions (e.g...