Sub-picosecond terahertz generation by a non-relativistic electron beam in field-poled lithium niobate [0.03%]
飞秒电子束在准位相匹配铌酸锂晶体中产生皮秒太赫兹辐射
Pawan Kumar,Maitri Libber,Deepak Kumar
Pawan Kumar
We present a novel, to our knowledge, scheme for terahertz generation based on the interaction of a nonrelativistic electron beam with surface plasmon polaritons in a conductor-electret structure. A spatially periodic frozen-in electric fie...
Linear-optics time-frequency analysis of complex multi-THz-bandwidth waveforms from a single optical spectrum [0.03%]
基于单光谱的复杂太赫兹波形线性光学时频分析方法研究复杂多太赫兹带宽波形
Geunweon Lim,Benjamin Crockett,Majid Goodarzi et al.
Geunweon Lim et al.
The analysis of sophisticated ultrabroadband (multi-THz bandwidth) optical waveforms is essential for many advanced applications, yet current techniques are limited, energy-inefficient, and/or often require multiple spectral measurements. H...
Pseudospin-controlled optical Bloch oscillations in a synthetic magnetic lattice [0.03%]
由伪自旋控制的合成磁场晶格中的光学布洛赫振荡
Hao Chen,Xiliang Zhang,Haolin Lin et al.
Hao Chen et al.
We report theoretically polarization-controlled Bloch oscillations in the synthetic two-level photonic system, where the horizontal and vertical polarizations of light emulate pseudospin up and down. We synthesize a magnetic lattice in the ...
Laser systems with a semiconductor optical amplifier and optical-power-to-electrical-current feedback [0.03%]
具有半导体光放大器和光电反馈的激光系统
Daria Khudozhitkova,Anastasia Bednyakova,Sonia Boscolo et al.
Daria Khudozhitkova et al.
We demonstrate, through numerical modeling, stabilization of the pulsed operation of a semiconductor optical amplifier (SOA)-based fiber laser system by optical-to-electrical feedback, without using saturable absorber elements. The feedback...
Electric field-resistant nanolasing of perovskite submicron cubes via morphology-controlled synthesis [0.03%]
基于形貌控制合成的介观钙钛矿激光器中的电场耐受型纳米激光现象
Yan Zhao,Jiaxin Li,Bingxue Luo et al.
Yan Zhao et al.
The integration of perovskite nanolasers into on-chip photonic circuits demands high stability under strong electric fields. In this study, we developed high-quality all-inorganic CsPbBr3 submicron cubes through an oleic acid-assisted cryst...
Speckle suppression in digital in-line holographic microscopy through liquid crystal dynamic scattering [0.03%]
液晶动态散射在数字内联全息显微镜中抑制斑点杂讯
Emilia Wdowiak,Nathan Spiller,Tianxin Wang et al.
Emilia Wdowiak et al.
We demonstrate speckle noise reduction in an in-line holographic imaging system using a zwitterion-doped liquid crystal dynamic scatterer (LCDS) cell diffuser. Integrated into a minimally modified bright-field microscope, the LCDS actively ...
Ultra-slow-light and perfect light modulator based on quasi-BIC metasurface [0.03%]
基于拟简止模式超表面的超强慢光和完美调制器
Yongzheng Sun,Xiangfei Yuan,Yang Huang et al.
Yongzheng Sun et al.
In this Letter, we present an ultra-slow-light metasurface driven by multiple symmetrically protected BIC (SP-BIC) that generates three EIT windows based on three wavelength-stabilized quasi-BIC (QBIC) in two distinct methods. The first EIT...
Source wavefront generation for a non-interferometric reconfigurable null test using a photonic lantern [0.03%]
基于光子灯笼的非干涉重构全孔径波前检测的初始波前生成方法
Nikolas Romer,Jannick P Rolland
Nikolas Romer
A method is presented to use a fiber-optic device known as a photonic lantern to generate a reconfigurable custom wavefront for a null test of spherical, aspheric, and freeform optical surfaces. By modulating input intensity and phases at s...
Accidental coincidences in camera-based high-dimensional entanglement certification [0.03%]
相机基高维纠缠认证中的意外巧合现象
Raphael Guitter,Baptiste Courme,Chloé Vernière et al.
Raphael Guitter et al.
High-dimensional entangled states, such as spatially entangled photon pairs produced by spontaneous parametric down-conversion (SPDC), are a key resource for quantum technologies. In recent years, camera-based coincidence counting approache...
Efficient calibration of slanted lenticular displays via asymmetric sampling analysis of cylindrical lens [0.03%]
基于柱面透镜的非对称采样分析的斜置圆顶屏高效校准方法
Hosung Jeon,Joonsoo Kim,Gwangsoon Lee et al.
Hosung Jeon et al.
The proposed method applies two distinct analytical strategies to accurately determine calibration parameters of slanted lenticular lens arrays by considering their asymmetric sampling characteristics along different axes. In the vertical d...