Jonah M Theisen,Erik M Grumstrup
Jonah M Theisen
An interferometric pump-probe microscope with two counterpropagating probe beams is developed and characterized. Application of the technique to a porphyrin derivative thin film shows that the technique is sensitive to variations in local f...
Uncertainty-aware physics-informed high-fidelity ghost imaging in ambient illumination [0.03%]
基于物理的高保真鬼成像的不确定性awareness及其在环境照明中的应用
Qi Li,Guancheng Huang,Yutong Li et al.
Qi Li et al.
Ghost imaging excels in extreme conditions owing to its exquisite sensitivity and adaptability, yet ambient-light perturbations disrupt the masks and compromise reconstruction fidelity. We propose an uncertainty-aware physics-informed frame...
Pulsed laser-induced water surface elevation and its relationship to the Abraham momentum [0.03%]
激光照射下水面抬升效应及与爱因斯坦 Abraham 动量的关系研究
Gopal Verma,Iver Brevik,Wei Li
Gopal Verma
We present a theoretical framework to address the challenge of modelling the liquid surface deformation under pulsed laser illumination for normal and oblique incidence, a key bottleneck in linking optical forces with fluid dynamics. This m...
Third-order nonlinearity-enabled ultrafast photonic diode based on a SnS&CAS tandem absorber [0.03%]
基于SnS&CAS串联吸收器的三阶非线性超快光子二极管
Feng Zhang,Qiao Lu,Xiaohe Zhang et al.
Feng Zhang et al.
In this work, we developed a high-speed photonic diode based on third-order nonlinearity of tin sulfide nanosheets (SnS NSs) and copper antimony sulfide quantum dots (CAS QDs). The transmission characteristics of this photonic diode are sim...
Yan Liu,Jing Han,Jinjia Guo et al.
Yan Liu et al.
Precise reconstruction of scattered fields remains a challenge. Here, we report a nonlinear approach via broadband modulation instability in co-doped polymers. Theoretical analysis and experimental observation show that the complementary ac...
Enhancing frequency accuracy of linear frequency-modulated BOTDR using Richardson-Lucy deconvolution [0.03%]
基于理查森-卢西算法的线性频率调制BOTDR频域解卷积及精度提升方法
LiHuang Li,Jiageng Chen,Yang Zhang et al.
LiHuang Li et al.
In Brillouin optical time-domain reflectometry (BOTDR), linear frequency-modulated (LFM) pump pulses have been employed to achieve rapid measurements. However, the linear frequency-time mapping is valid only within the pulse width, which co...
High-power U-band femtosecond laser pulses generated by nonlinear optical gain modulation [0.03%]
高功率微波频段飞秒激光脉冲的非线性光学增益调制产生
Shaowei Huang,Zhi Cheng,Xinru Cao et al.
Shaowei Huang et al.
Ultrafast laser pulses in the 1.62-1.68 μm wavelength range (U-band) hold significant potential for applications such as spectroscopy, optical communication, and bio-imaging. However, it is challenging to generate high-energy, high-perform...
Holistic form reconstruction based on a nonlinear 3D zonal grid model in stereoscopic deflectrometry [0.03%]
基于立体光度测量的非线性三维区域网格模型的整体形态重构方法研究
Zhenyi Chen,Qican Zhang,Wenchuan Zhao et al.
Zhenyi Chen et al.
Phase measuring deflectrometry (PMD) is extensively used to measure the specular surfaces. Stereo-PMD can address the height-slope ambiguity problem, but it remains the error propagation and accumulation in traditional stepwise reconstructi...
Guidong Zhang,Shiye Li,Zaoming Huang et al.
Guidong Zhang et al.
In this Letter, we propose a power-switch-free (PSF) DC-AC photonic power converter (PPC) that utilizes liquid-crystal optical modulators (LCOMs) to commutate optical flux, thereby eliminating the need for power switches and avoiding switch...
Low-loss waveguide bend for compact and broadband photonic integrated circuits [0.03%]
一种低插损弯波导及其在光子集成电路中的应用
Jiahong Chen,Zhiyuan Zheng,Chongfu Zhang
Jiahong Chen
We propose and demonstrate a low-loss, wavelength-insensitive waveguide bend via a silica-on-silicon delay line with a footprint of 10 mm × 7.5 mm. The bending loss of the 90∘ Bloss and arc hybrid bend was simulated and compared to that o...