Robust multifunctional single-tone training sequence for free-space optical communication in strong turbulence [0.03%]
强湍流下自由空间光通信鲁棒多功能单音训练序列
Kunfeng Liu,Liqian Wang,Mengyao Chen
Kunfeng Liu
In free-space optical (FSO) communication, the received optical power will be significantly diminished in environments characterized by strong turbulence, making effective frequency offset (FO) estimation challenging and severely degrading ...
Low-noise cascaded frequency conversion of 637.2 nm light to the telecommunication C-band in a single-waveguide device [0.03%]
一种单波导器件中的低噪声级联频率变换技术将637.2nm光变换成C波段光
Fabrice von Chamier,Joscha Hanel,Chris Müller et al.
Fabrice von Chamier et al.
Interconnected quantum devices are the building blocks of quantum networks, where state transduction plays a central role. The frequency conversion of photons into the telecommunication C-band is decisive in taking advantage of current low-...
Interferometric focal planes [0.03%]
干涉型焦平面
David J Brady,Shengtai Zhu,Zhipeng Dong
David J Brady
We propose arrays of integrated interferometers to characterize the mutual intensity on focal planes. While focal coherence measurement does not increase the aperture-limited spatial bandpass, it can increase Shannon information capacity re...
Enhancing the optical and thermal performance of Ce:YAG phosphors through multi-component co-doping [0.03%]
通过多组分共掺杂增强Ce:YAG发光粉的光学和热学性能
Suwen Xiong,Dongping Zhou,Chang Min et al.
Suwen Xiong et al.
High-power phosphor-converted laser lighting and laser display have gained significant attention due to their superior energy efficiency and long lifespan. However, the elevated operating temperatures under high-power excitation induce seve...
Supporting quadric method for designing diffractive optical elements in the scalar diffraction theory framework [0.03%]
标量衍射理论框架下设计衍射光学元件的二次曲面支持法
Daniil V Soshnikov,Leonid L Doskolovich,Albert A Mingazov et al.
Daniil V Soshnikov et al.
We present a formulation of the supporting quadric method (SQM) taking into account diffraction effects and allowing one to calculate the phase function of a diffractive optical element (DOE) generating a prescribed intensity distribution. ...
Leitao Wang,Zhiyong Xu,Jingyuan Wang et al.
Leitao Wang et al.
Ultraviolet (UV) optical communication, featuring non-line-of-sight communication, high confidentiality, and robust anti-interference capabilities, is highly suitable for communication on small-sized platforms such as unmanned aerial vehicl...
Mechanical squeezing in a cavity optomechanical system with the Coulomb interaction and an optical parametric amplifier [0.03%]
含库仑相互作用和光学参量放大的腔光力学系统中的机械挤压态
Yuan Chen,Ai-Xi Chen
Yuan Chen
A theoretical scheme is proposed to generate the steady-state position-quadrature squeezing of a mechanical resonator in a single cavity optomechanical system with the Coulomb interaction and an optical parametric amplifier (OPA). Our resul...
Amplified emission and lasing enabled by high-Q quasi-bound states in asymmetric dielectric metasurfaces via eigenfield perturbation [0.03%]
高Q值准束缚态在不对称介质元表面上通过特征场摄动实现的放大辐射和激光发射
Ke Xu,Yuhang Fei,Yingying Sun et al.
Ke Xu et al.
Symmetry-protected bound states in the continuum represent a distinct class of nonradiative modes in continuous media. By introducing asymmetric parameters into a symmetric metasurface, the inherent symmetry can be broken, transforming BICs...
Color image information transmission in plasma sheath turbulence based on orbital angular momentum mode [0.03%]
基于轨道角动量模的等离子体鞘射扰动下彩色图像信息传输
Haimeng Liu,Dong Zhi,Long Huang et al.
Haimeng Liu et al.
This study numerically investigates the transmission of color images through a 0.4 m plasma sheath turbulence (PST) channel, based on the anisotropic power spectrum of the refractive-index fuctuation in the PST. A simulation model for the e...
Retrieval of SO2 concentration from UV camera image based on immuneoassay of light dilution effect [0.03%]
基于光稀释效应免疫测定的紫外相机图像SO2浓度反演算法
Haochen Yuan,Huiliang Zhang,Yikang Zhang et al.
Haochen Yuan et al.
SO2 UV camera has rapidly become integral in remote sensing applications of polluted gases by virtue of its simple structure, high spatiotemporal resolution, and extensive monitoring range. However, as the monitoring distance increases, atm...