Oliwia Kaczkoś,Mateusz Grochalski,Maria Vinas-Pena et al.
Oliwia Kaczkoś et al.
Two-photon vision represents a novel area of research in vision science. The phenomenon relies on the perception of pulsed infrared light (800-1300 nm) through two-photon absorption in visual pigments, leading to the perception of color cor...
PRISM-UGF: weakly paired LIBS-image fusion for local burn inspection of stainless steel [0.03%]
基于LIBS光谱和图像弱关联的不锈钢局部灼伤检测方法
Kai Hou,Yu Zhang,Lei Zhao et al.
Kai Hou et al.
Strict point-to-point correspondence between surface images and LIBS spectra is difficult to establish in local burn inspection. We propose position-aware regular image sampling with uncertainty-gated fusion (PRISM-UGF), a weakly paired LIB...
Xianfeng Tian,Xinglong Cui,Junpeng Liao et al.
Xianfeng Tian et al.
The nonlinear refractive index n2 is a fundamental parameter in photonics, governing essential third-order nonlinear optical processes, such as self-phase modulation, cross-phase modulation, four-wave mixing, optical parametric oscillation,...
On-chip dense quantum frequency comb generation via SFWM in an AlGaAs-on-insulator resonator [0.03%]
绝缘体上AlGaAs谐振腔中密集型量子频率梳的非线性生成研究
J S S Durán Gómez,Jan Heine,Mina Abdelmeseih et al.
J S S Durán Gómez et al.
Bright and broadband integrated photon sources at telecom wavelengths are essential for quantum communication and information processing. Materials with high nonlinear refractive index (n2), such as aluminum gallium arsenide (AlGaAs), enabl...
Demonstration of low-crosstalk spiral fractional orbital angular momentum multiplexing for free-space optical communication [0.03%]
用于自由空间光通信的低串扰螺旋分数轨道角动量复用的演示
Zhihao Qiu,Ruijin Qiu,Weihang Zhong et al.
Zhihao Qiu et al.
Fractional-order orbital angular momentum (OAM) modes offer continuously tunable topological charges for higher-density space division multiplexing, yet remain limited by severe modal crosstalk (XT). Spiral fractional OAM (SF-OAM) is a dist...
Synchronous multi-wavelength mode decomposition in few-mode fiber using multi-modal ptychography [0.03%]
基于多模ptychography的少模光纤同步多波长模式分解
Xinlin Zhao,Chunyu Zou,Suhas P Veetil et al.
Xinlin Zhao et al.
Space-division and wavelength-division multiplexing require synchronous multiwavelength modal characterization in few-mode fibers, but single-wavelength methods are limited by spectral mixing, increased modal density, and wavelength-depende...
Fano resonance from backscattering in a magnesium fluoride crystalline cavity for laser frequency locking [0.03%]
镁氟结晶腔中的背向散射弗诺共振锁定激光频率
Wenling Sun,Hao Wang,Jianing Zhang et al.
Wenling Sun et al.
We report the Fano resonance induced by backscattering in a MgF₂ WGM cavity. The reflected light from the tapered fiber end facet acts as the continuum in Fano interference, with its phase adjustable to produce various Fano lineshapes. We ...
Zhifeng Sun,Badreddine Merabet,Zhen Wang et al.
Zhifeng Sun et al.
In this Letter, we propose an optical image encryption system based on the Diffractive Deep Neural Network (DDNN) integrating the Logistic Chaotic Map (LCM) and two-dimensional Linear Canonical Transform (2D-LCT), to overcome static phase d...
Super-resolved segmentation in blurred and noisy images by iterative edge reconstruction [0.03%]
通过迭代边缘重建对模糊和噪声图像进行超分辨率分割
Guillermo D Brinatti Vazquez,Sandra Martínez,Oscar E Martínez
Guillermo D Brinatti Vazquez
We present ITEROOF, a novel, to the best our knowledge, method that enables the segmentation of objects separated by distances below the imaging system's resolution limit and therefore appear overlapped in the images. The method is based on...
Optical sectioning partially coherent sparse structured illumination microscopy (OS-pcsSIM) [0.03%]
光学分层部分相干稀疏结构照明显微镜(OS-pcsSIM)
Kai Wen,Caixia Wu,Qin Chen et al.
Kai Wen et al.
Optical sectioning structured illumination microscopy (OS-SIM) is a rapid 3D microscopic imaging approach. Yet, the fringe visibility of OS-SIM images degrades when imaging a thick sample due to the low fringe visibility of dense fringes us...