Metasurface-enabled generation and mapping of perfect vector vortex beams on hybrid-order and higher-order Poincaré spheres for optical encryption [0.03%]
基于元表面的完美矢量涡旋光束在混合阶和高阶庞加莱球上的生成与映射用于光学加密
Shuyan Zhang,Weijie Shi,Lili Tang et al.
Shuyan Zhang et al.
Perfect vector vortex beams (PVVBs) combine the ring-shaped intensity profile of perfect vortex beams with spatially variant polarization states, enabling precise control of light fields. Conventional superposition strategies of PVVBs based...
Analyzing radial and azimuthal Brownian motion in Laguerre-Gaussian optical traps [0.03%]
拉盖尔高斯光学陷阱中布朗运动的径向和方位分量分析
Saifollah Rasouli,Mohsen Samadzadeh,Faegheh Hajizadeh et al.
Saifollah Rasouli et al.
Optical trapping, orchestrated by intensity-gradient forces and radiation pressure, is a powerful technique in physics and nanotechnology that enables precise control and manipulation of microscopic and nanoscale particles with widespread a...
Uniguided and unicoupled resonances in photonic crystal microcavity with a chiral layer [0.03%]
具有手性层的光子晶体微腔中的单模和单耦合共振现象
Pavel S Pankin,Dmitrii N Maksimov
Pavel S Pankin
We show that the effect of voltage-induced transparency of a photonic crystal microcavity with a chiral liquid crystal layer is caused by a pair of counter-propagating unidirectionally guided (UGR) and unidirectionally coupled (UCR) resonan...
Xiang Wang,Kan-Xu Jia,Xuan-Ge Zhang et al.
Xiang Wang et al.
Single-pixel imaging (SPI) at large scale is limited by the computational burden of reconstruction. We introduce a physics-guided lightweight unfolding framework (∼2.1 × 105 parameters) combined with Kronecker compressive sensing-based pa...
Chenxi Gu,Qinghua Liang,Chang-Yin Ji et al.
Chenxi Gu et al.
Broadband chiral metasurfaces facilitate ultracompact devices for chiral light generation, manipulation, and detection across a wide spectral range, rendering them important for various photonics applications. Here, we present an unconventi...
Dramatic enhancement of supercontinuum generation in H2O by non-harmonic two-color excitation [0.03%]
利用非谐波双色激发在H2O中戏剧性增强超级连续谱生成
Tsuneto Kanai,ChengXiang Jin,Hibiki Tsunekawa et al.
Tsuneto Kanai et al.
We demonstrate a dramatic enhancement of supercontinuum generation (SCG) in liquid H2O driven by non-harmonic two-color laser fields, where pump and seed frequencies are not integer multiples. This scheme yields a broadband SC spectrum enha...
Electrically driven heterogeneous III-V/Si photonic crystal surface-emitting laser [0.03%]
电驱动的III-V/Si光子晶体垂直表面发射激光器
Xiaoyu Zhang,Xuefan Yin,Kangjiang Yang et al.
Xiaoyu Zhang et al.
We demonstrate a C-band electrically driven photonic-crystal surface-emitting laser (PCSEL) based on III-V/Si heterogeneous integration, in which a 2D photonic crystal (PhC) patterned on the silicon layer provides in-plane distributed feedb...
Subwavelength-engineered O-band silicon nitride photonic metacrystal cavities with large Q/ V [0.03%]
具有大Q/ V的O带亚波长硅氮化物光子元晶腔
Christopher S Whittington,Sharon M Weiss
Christopher S Whittington
Silicon nitride is emerging as a leading material platform for next-generation photonics due to its wide transparency window and foundry compatibility. As this platform matures, it is imperative to develop photonic structures that increase ...
Theranostic fiber-optic probe enabling simultaneous photothermal ablation and contact force monitoring [0.03%]
兼具光热消融和接触力监测功能的诊疗光纤探针
Zhuozhou Li,Junyu Leng,Yining Liu et al.
Zhuozhou Li et al.
Real-time tactile feedback plays a vital role in guiding controlled ablation procedures. Here, we report a theranostic fiber-optic (TFO) probe that enables simultaneous photothermal ablation and contact force feedback. The probe integrates ...
Observation of the classical entanglement of twisted partially coherent light in phase space [0.03%]
扭折部分相干光的相空间经典纠缠实验观察
Hefeng Jiang,Peipei Peng,Haiyun Wang et al.
Hefeng Jiang et al.
Recently, a new form of classical entanglement between phase space degrees of freedom in twisted partially coherent beams has been theoretically predicted [Opt. Lett.46, 5958 (2021)10.1364/OL.445258]. Here, we report the first, to our knowl...