123 citations · 506 across the 24 of their papers we have counts for
24 papers
Broad-angle photon-pair generation from flatband quasi-BIC resonant 3R-MoS metasurfaces
Tingting Liu, Huifu Qiu, Xintong Shi +2
Spontaneous parametric down-conversion (SPDC) in ultrathin optical resonant metasurfaces offers a promising platform for integrated quantum light sources. However, conventional res…
Flat optics for analog computing: from fundamental mechanisms to advanced meta-processors
Tingting Liu, Jumin Qiu, Xintong Shi +2
As the explosive growth of visual data increasingly strains the latency and energy limits of conventional electronic computing, optical analog computing has re-emerged as a disrupt…
Doubly resonant nonlinear metasurfaces enabling NIR-to-UV upconversion for reconfigurable Fourier optical processing
Jumin Qiu, Meibao Qin, Tingting Liu +6
Fourier optical processing underpins optical information manipulation, yet extending such operations to short wavelengths within compact platforms remains challenging. Here, we add…
Wavefront Control and Intensity Modulation of Third Harmonic Generation in Nonlocal Metasurfaces
Yu Tian, Nuo Wang, Qi Liu +4
Metasurfaces have emerged as a promising platform for integrated nonlinear optics. Nonlocal metasurfaces enable high nonlinear conversion efficiency, while the local ones can offer…
Metasurface-based all-optical diffractive convolutional neural networks
Zhijiang Liang, Chenxuan Xiang, Shuyuan Xiao +5
The escalating energy demands and parallel-processing bottlenecks of electronic neural networks underscore the need for alternative computing paradigms. Optical neural networks, ca…
High-efficiency infrared upconversion imaging with nonlinear silicon metasurfaces empowered by quasi-bound states in the continuum
Tingting Liu, Jumin Qiu, Meibao Qin +6
Infrared imaging is indispensable for its ability to penetrate obscurants and visualize thermal signatures, yet its practical use is hindered by the intrinsic limitations of conven…
Tunable edge and depth sensing via phase-change nonlocal metasurfaces
Kenan Guo, Yue Jiang, Shuyuan Xiao +1
Performing simultaneous depth-of-field (DoF) extension and edge enhancement within a single optical element remains a fundamental challenge in advanced imaging. Here, we propose a…
Integrated Spectropolarimeter by Metasurface-Based Diffractive Optical Networks
Jumin Qiu, Tingting Liu, Chenxuan Xiang +3
Conventional spectrometer and polarimeter systems rely on bulky optics, fundamentally limiting compact integration and hindering multi-dimensional optical sensing capabilities. Her…
Quasi-Bound States in the Continuum-Induced Second Harmonic Generation Enhancement in High- Triple Dielectric Nanoresonators
Xu Tu, Meibao Qin, Huifu Qiu +4
High- optical nanocavities are fundamental to modern optics and photonics, enabling enhanced light-matter interactions. Previous studies have demonstrated that high- supercav…
Electro-optically tunable second-harmonic generation in lithium niobate metasurfaces boosted by Brillouin zone folding induced bound states in the continuum
Huifu Qiu, Xu Tu, Meibao Qin +3
Lithium niobate (LN) metasurfaces exhibit remarkable Pockels effect-driven electro-optic tunability, enabling dynamic control of optical responses through external electric fields.…
Phase-change metasurfaces for reconfigurable image processing
Tingting Liu, Jumin Qiu, Tianbao Yu +3
Optical metasurfaces have enabled high-speed, low-power image processing within a compact footprint. However, reconfigurable imaging in such flat devices remains a critical challen…
Enhanced third-harmonic generation empowered by doubly degenerate quasi-bound states in the continuum
Tingting Liu, Meibao Qin, Jumin Qiu +6
Recent advancements in nonlinear nanophotonics are driven by the exploration of sharp resonances within high-index dielectric metasurfaces. In this work, we leverage doubly degener…
Optoelectronic generative adversarial networks
Jumin Qiu, Ganqing Lu, Tingting Liu +3
Artificial intelligence generative content technology has experienced remarkable breakthroughs in recent years and is quietly leading a profound transformation. Diffractive optical…
Multiplexed Metasurfaces for Diffractive Optics via Phase Correlation Method
Chenxuan Xiang, Jumin Qiu, Qiegen Liu +2
The multiplexing capability of metasurfaces has been successfully demonstrated in applications such as holography and diffractive neural networks. However, identifying a suitable s…
Continuous Varifocal Metalens Based on Phase-Change Material
Yilong Cui, Liang Hou, Kenan Guo +4
Metasurfaces have provided new opportunities for the realization of flat lenses, among which tunable metalenses have garnered considerable attention due to their flexible functiona…
Enhanced third-harmonic generation and degenerate four-wave mixing in an all-dielectric metasurfaces via Brillouin zone folding-induced bound states in the continuum
Meibao Qin, Feng Wu, Tingting Liu +2
Bound states in the continuum (BICs) exhibit significant electric field confinement capabilities and have recently been employed to enhance nonlinear optics response at the nanosca…
Giant enhancement of the transverse magneto-optical Kerr effect in etchless bismuth-substituted yttrium iron garnet empowered by quasi-bound states in the continuum
Qin Tang, Dandan Zhang, Shuyuan Xiao +5
Here, we propose an etchless bismuth-substituted yttrium iron garnet layer assisted by a one-dimensional resonant grating waveguide to enhance transverse magneto-optical Kerr effec…
Edge detection imaging by quasi-bound states in the continuum
Tingting Liu, Jumin Qiu, Lei Xu +6
Optical metasurfaces have revolutionized analog computing and image processing at sub-wavelength scales with faster speed and lower power consumption. They typically involve spatia…
High-efficiency broadband achromatic metalens in the visible
Liang Hou, Hongyuan Zhou, Dandan Zhang +5
The metalenses have been extensively studied for their compact and flexible characteristics in focusing and imaging applications. However, it remains a significant challenge to des…
Enhanced second harmonic generation in high- all-dielectric metasurfaces with backward frequency conversion
Xu Tu, Siqi Feng, Jiajun Li +4
Here we employ the quasi-bound state in the continuum (quasi-BIC) resonance in all-dielectric metasurfaces for efficient nonlinear processes in consideration of the backward freque…
Extremely intrinsic chirality in two-dimensional planar waveguide grating induced by quasi-bound states in the continuum
Dandan Zhang, Tingting Liu, Linlin Lei +6
The strong chiral light-matter interaction is crucial for various important fields such as chiral optics, quantum optics, and biomedical optics, driving a quest for the extreme int…
Efficient photon-pair generation empowered by dual quasi-bound states in the continuum
Tingting Liu, Meibao Qin, Siqi Feng +4
Here we demonstrate the efficient photon-pair generation via spontaneous parametric down conversion from a semiconductor metasurface supporting dual quasi-bound states in the conti…
Phase-change nonlocal metasurfaces for dynamic wavefront manipulation
Tingting Liu, Dandan Zhang, Wenxing Liu +5
Recent advances in nonlocal metasurfaces have enabled unprecedented success in shaping the wavefront of light with spectral selectivity, offering new solutions for many emerging na…
Decision-making and control with diffractive optical networks
Jumin Qiu, Shuyuan Xiao, Lujun Huang +4
The ultimate goal of artificial intelligence is to mimic the human brain to perform decision-making and control directly from high-dimensional sensory input. Diffractive optical ne…