Cross-phase modulation radiation between soliton and four-wave mixing states [0.03%]
孤子与四波混频态间的交叉相位调制辐射
Xinlin Han,Xinyu Wang,Xiao Yu et al.
Xinlin Han et al.
Cross-phase modulation (XPM) provides abundant nonlinear observations. Here, we demonstrate what we believe to be a novel XPM microcomb radiation when the microcavity has one existing soliton state and a four-wave mixing (FWM) state. Typica...
Sensitivity-guided illumination engineering for coherent Fourier ellipsometry [0.03%]
灵敏度指导的照明工程在相干傅立叶椭偏仪中的应用
Xingyi Ma,Wenhui Zhou,Zhaolou Cao
Xingyi Ma
Coherent Fourier ellipsometry (CFE) enables highly flexible thin-film metrology by combining high-numerical-aperture imaging with computational reconstruction. In this Letter, we present a sensitivity-analysis framework for polarization eng...
Correlation of growth behavior and spectral properties of GaN grown by the Na-flux method [0.03%]
钠助熔剂法生长GaN材料的生长行为及其光学性质研究
Huailin Sun,Zhiwei Si,Zongliang Liu et al.
Huailin Sun et al.
With the demand for optoelectronic applications, homoepitaxial gallium nitride (GaN) exhibits remarkable advantages owing to its extremely low dislocation density and other superior properties. The Na-flux method represents a promising appr...
Spectrum-sparse broadband chaotic signal generation based on an optical frequency shift loop [0.03%]
基于光学频率偏移环的宽带混沌信号发生器
Jian Wang,Hao Su,Runqing Luo et al.
Jian Wang et al.
Spectrum-sparse chaotic signals offer both a large detection bandwidth and low spectral occupancy. However, existing photonic schemes have difficulty in reconfiguring their sparsity characteristics. A microwave photonic scheme based on an o...
Non-contact photoacoustic imaging empowered with a PMUT sensor and refraction correction [0.03%]
利用PMUT传感器和折射校正的非接触式光声成像技术
Arijit Paramanick,Akshay Kumar,Antony Jeyaseelan et al.
Arijit Paramanick et al.
This article reports the development of non-contact photoacoustic imaging (nC-PAI)-unlike the conventional PAI that mandates acoustic coupling gel-employing and integrating for the first time: (i) MEMS piezoelectric-micromachined-ultrasound...
Imaging-free tilted-pulse-front-pumped lithium niobate source for high-energy terahertz pulse generation [0.03%]
用于高能量太赫兹脉冲产生的无需成像的倾斜脉冲前沿泵浦锂钦氧化物源
Gergő Krizsán,Bálint Jurasits,Zoltán Tibai et al.
Gergő Krizsán et al.
A new, to the best of our knowledge, type of terahertz pulse source is introduced and demonstrated, employing a volume phase holographic grating in direct contact with a nonlinear material requiring a large pulse front tilt angle-e.g., lith...
50 GHz on-chip germanium waveguide photodetector for the 2 µm wavelength band [0.03%]
工作在2微米波段的50GHz锗片上波导光电探测器
Yihang Li,Bingyan Zhang,Yunhao Zhang et al.
Yihang Li et al.
The 2 µm wavelength band is emerging as a promising alternative spectral window for free-space and fiber-optic communications. As a proven photonic integration platform, silicon photonic components can operate in this band; however, on-chi...
Ultracompact zigzag fiber-feedback multipass optical parametric oscillator [0.03%]
超紧凑型之字形光纤反馈多通光学参量振荡器
Johann Thannheimer,Florent Kadriu,Philipp Flad et al.
Johann Thannheimer et al.
Fiber-feedback OPOs are widely used as broadly tunable ultrashort pulse sources, but their limited parametric single-pass gain at a broad bandwidth often necessitates post-amplification stages. Our recently developed multipass amplification...
47.53 W high-peak-power passively Q-switched MSMC Tm:YAG laser [0.03%]
峰值功率高达47.53 W的被动Q切换MSMC掺铥YAG激光器
Di Liu,Chunyang Wang,Ke Wang et al.
Di Liu et al.
For compact 2 μm passively Q-switched lasers based on two-dimensional-material saturable absorbers, concentration-dependent loss allocation can limit pulse-energy extraction and tens-of-watts peak-power operation, restricting their use in ...
High-performance GeSn-on-SOI photodetector grown by selective epitaxy for C+L application [0.03%]
用于C+L波段的高性能GeSn-on-SOI光电探测器的择优外延生长技术
Zhipeng Liu,Yiling Hu,Zhi Liu et al.
Zhipeng Liu et al.
In this work, we demonstrate a high-performance GeSn photodetector fabricated on a silicon-on-insulator substrate using selective epitaxial growth. This method effectively confines the growth of the GeSn material to predefined regions, whic...