Chirp-free hundred-picosecond pulse fiber laser based on carbon nanotubes mode-locker [0.03%]
一种基于碳纳米管锁模器的无扭摆百皮秒脉冲光纤激光器
Weixi Li,Kailin Jiang,Lilong Dai et al.
Weixi Li et al.
We demonstrate a narrow bandwidth passively erbium-doped mode-locked fiber laser based on single-wall carbon nanotubes (SWCNTs). The center wavelength is 1546.61 nm. The strong filtering effect and low saturable absorber (SA) modulation dep...
Holmium-doped silica fibers combining high doping and high efficiency [0.03%]
兼具高掺杂浓度与高能量上转换效率的holmium掺杂硅石光纤
Jan Pokorný,Bára Švejkarová,Jan Aubrecht et al.
Jan Pokorný et al.
We present a 2.1 µm holmium-doped fiber laser, core pumped by a 1.94 µm thulium-doped fiber laser. The laser is based on an in-house drawn, highly holmium-doped silica fiber (3850 mol ppm). We achieved a high output power up to 22.5 W and...
Role of absorbed dose in a lifetime of HfO2 and SiO2 dielectric coatings [0.03%]
HfO2和SiO2介电涂层终生吸收剂量的作用分析
Erikas Atkočaitis,Austėja Aleksiejūtė,Justinas Galinis et al.
Erikas Atkočaitis et al.
This study investigates laser-induced fatigue in HfO2 and SiO2 dielectric coatings on fused silica using S(107)-on-1 laser-induced damage threshold testing and photothermal common-path interferometry across 1030 - 257 nm wavelengths with pi...
Computationally efficient multi-layer thickness determination using sparse CW THz spectroscopy [0.03%]
基于稀疏连续波太赫兹光谱的多层厚度计算有效检测方法
Alexander Jäckel,Cornelius Mach,Lauri Schwenson et al.
Alexander Jäckel et al.
Continuous wave (CW) terahertz spectroscopy systems are a proven and convenient solution for industrial non-destructive testing and multi-layer thickness determination. For these systems to find use in real-time inline monitoring applicatio...
Meta-DCP: simple and efficient single-frame image enhancement algorithm for infrared metalens images [0.03%]
用于红外金属镜图像的简单高效的单帧图像增强算法META-DCP
Hongna Zhu,Hongan Pan,Aoling Li et al.
Hongna Zhu et al.
Infrared metalenses are attracting intensive interest, as alternatives to traditional infrared optical systems comprising multiple lenses and diffractive elements. However, the images captured by infrared metalenses are often blurry due to ...
Terahertz dual-mechanism dual-band linear-to-circular polarization converter with one-octave band separation and orthogonal polarization [0.03%]
具有八度带分离和正交偏振的太赫兹双机制双频段线极化到圆极化转换器
Zhen-Hao Xing,Si-Yuan Liao,Ye Zheng et al.
Zhen-Hao Xing et al.
Multi-band polarization converters are crucial for reducing coupling between multiple-input multiple-output antenna components, promoting the integration of communication systems, and improving information transmission efficiency. However, ...
Generating vortex beams by transforming near-field coordinates of coherent beam combining system [0.03%]
利用相干合成近场坐标变换产生涡旋光束
Hongxiang Chang,Xingliang Xie,Wenguo Zhu et al.
Hongxiang Chang et al.
In this study, we introduce a method of generating vortex beams based on coherent beam combining (CBC) configuration. By utilizing a pair of static optical elements with specific phase distributions, the near-field of array beams is transfo...
Composition-controlled recovery time of SWIR (2-2.4 µm) GaSb-based SESAMs [0.03%]
具有可调控恢复时间的SWIR(2-2.4µm)GaSb基SESAMs
Maximilian C Schuchter,Marco Gaulke,Nicolas Huwyler et al.
Maximilian C Schuchter et al.
SEmiconductor Saturable Absorber Mirrors (SESAMs) have revolutionized the ultrafast laser industry. While SESAMs are well-established in the near-infrared regime, using GaAs-wafer epitaxy, there is an increasing interest for the short-wave ...
Improved inverse design method based on AVM for long-distance dielectric laser accelerators [0.03%]
基于AVM的长程介电激光加速器改进逆设计方法
ZiYang Liu,QianQian Wang,ChenYi Yang et al.
ZiYang Liu et al.
The dielectric laser accelerator (DLA) is an innovative on-chip particle accelerator that employs a periodic dielectric structure to modulate a laser beam, generating a longitudinal accelerating field to propel particles. Leveraging the hig...
Hybrid encoding fringe and simulation-to-real scene approach for accurate depth estimation in fringe projection profilometry [0.03%]
用于条纹投影形貌测量中准确深度估计的混合编码及仿真实景方法
Jie Ren,Chunqian Tan,Wanzhong Song
Jie Ren
Fringe projection profilometry (FPP) is a widely adopted technique for three-dimensional reconstruction, and end-to-end depth estimation based on deep learning has gained considerable attention in recent years. However, this approach often ...