6 papers
3D surface profiling via photonic integrated geometric sensor
Ziyao Zhang, Yizhi Wang, Chunhui Yao +11
Measurements of microscale surface patterns are essential for process and quality control in industries across semiconductors, micro-machining, and biomedicines. However, the devel…
Wavelength-agnostic 3D-Nanoprinted coupler
Huiyu Huang, Zhitian Shi, Chunhui Yao +2
We present a photonic coupler that exhibits effectively wavelength-agnostic performance for ultra-broadband optical interfacing. By incorporating a dual-ellipsoidal geometry, the d…
Tri-layer SiN-on-Si 8x8 Optical Switches with Thermo-optic and Electro-optic Actuators
Bohao Sun, Chunhui Yao, Tongyun Li +11
We present two spatial-multiplexed switch-and-select (S&S) 8x8 optical switches incorporating a tri-layer SiN-on-Si platform, one equipped with thermo-optic (T-O) and the other ele…
Chip-scale sensor for spectroscopic metrology
Chunhui Yao, Wanlu Zhang, Peng Bao +10
Miniaturized spectrometers hold great promise for in situ, in vitro, and even in vivo sensing applications. However, their size reduction imposes vital performance constraints in m…
Benchmarking reconstructive spectrometer with multi-resonant cavities
Chunhui Yao, Kangning Xu, Tianhua Lin +6
Recent years have seen the rapid development of miniaturized reconstructive spectrometers (RSs), yet they still confront a range of technical challenges, such as bandwidth/resoluti…
Photonic Chiplet Interconnection via 3D-Nanoprinted Interposer
Huiyu Huang, Zhitian Shi, Giuseppe Talli +3
Photonic integrated circuits utilize various waveguide materials, each excelling in specific metrics like efficient light emission, low propagation loss, high electro-optic efficie…