Wide tunable random fiber laser with sub-kHz narrow linewidth based on a disordered fiber Bragg grating array [0.03%]
基于无序光纤布拉格光栅阵列的宽带可调窄线宽随机光纤激光器
Ao Li,Haiyang Wang,Liang Zhang et al.
Ao Li et al.
We demonstrate a wide-tunable random fiber laser (RFL) with narrow linewidth and low noise. The tunable RFL is achieved by combining random feedback from a disordered fiber Bragg grating array (FBGA) with a broad scattering wavelength range...
Enhancing noise suppression of phase estimation in continuous-variable quantum key distribution with discrete modulation [0.03%]
基于离散调制的连续变量量子密钥分发相位估计噪声抑制增强方法研究
Tao Shen,Dengke Qi,Xiangyu Wang et al.
Tao Shen et al.
Accurately estimating phase is crucial in continuous-variable quantum key distribution systems, directly impacting the final secret key rate. In previous systems that utilize the local local oscillator, phase estimation is closely tied to t...
Optically enhancing and controlling photoacoustic signals using ultra-thin semiconductor coatings on metal surfaces [0.03%]
利用超薄半导体涂层光学增强和控制金属表面的光声信号
Komal Chaudhary,Maksym Illienko,Thomas van den Hooven et al.
Komal Chaudhary et al.
We present a simple approach to enhance the signal strength and detection sensitivity of weak photoacoustic signals, by using ultrathin, high refractive index, absorbing semiconductor layers on metal surfaces. They form etalon resonances wi...
Sub-1 nm misalignment sensing with cascaded interference in polar coordinate for lithography [0.03%]
用于光刻的极坐标级联干涉亚纳米偏移检测方法
Nan Wang,Baiyang Tang,Wei Jiang
Nan Wang
In previous work, we introduced a structured illumination strategy using linear gratings to achieve sub-nanometer misalignment sensing, which significantly enhanced accuracy and sensitivity. However, the approach was limited to linear grati...
Xiangyuan Liu,Shusen Zhao,Dimeng Xia et al.
Xiangyuan Liu et al.
Photon-counting computed tomography (PCCT) is superior in providing better CT image contrast than traditional CT technology. However, noticeable ring artifacts are more likely caused by the imperfect functioning of photon-counting detectors...
Numerical simulation and experimental validation of light modulation by laser-ablated ripples on fused silica surfaces [0.03%]
激光诱导石英玻璃表面凹槽光调制的数值模拟与实验验证
Yichi Han,Xiaocong Peng,Songlin Wan et al.
Yichi Han et al.
Laser ablation is a commonly employed technique to enhance the damage resistance of fused silica optics due to its non-contact nature and the absence of polishing aids. However, during the ablation process, laser-induced ripples are inevita...
Visualization of pure phase objects with optical spatial differentiation operations [0.03%]
基于光学空间微分运算的纯相位物体可视化技术
Ruisi Wang
Ruisi Wang
Phase distributions typically contain richer information about the morphology, structure, and organizational properties of a sample than intensity distributions. However, due to the weak scattering and absorption properties of pure phase ob...
Accurate fast quantitative phase imaging based on accelerative iterative transport of the intensity equation solution [0.03%]
基于加速传输强度方程解的精确快速定量相位成像技术
Chen Fan,Zixin Zhao,Lu Zhang et al.
Chen Fan et al.
As a simple and widely used quantitative phase imaging (QPI) approach, the transport of intensity equation (TIE) is plagued by accuracy and applicability issues due to the limitations of conventional solution algorithms. To address these pr...
Robust inverse design of digital photonic devices for photonic integrated circuits [0.03%]
用于光子集成电路的数字光子器件的鲁棒逆向设计
Kaiyuan Wang,Zihao Tang,Yantao Wu et al.
Kaiyuan Wang et al.
Digital nanophotonic devices have achieved both an ultra-compact footprint and flexibly designed functions, which hold great potential for ultradense photonic integrated circuits. However, the performance deteriorates rapidly when the size ...
Wide-area topography using reflection phase microscopy for surface inspection [0.03%]
用于表面检测的宽域形貌散射相位显微镜测量方法
Kwanjun Park,Taeseok Daniel Yang,Yong Guk Kang et al.
Kwanjun Park et al.
In this study, we demonstrated an inspection system utilizing reflection phase microscopy to enhance both depth range and field of view (FOV). By implementing a dual-wavelength method, we achieved a maximum expected depth range of 7.7 µm. ...