Slow and fast light effects induced by interference with a control light field [0.03%]
由控制光场干涉引起的慢光和快光效应
Hugues Guillet de Chatellus,Goulc&#x;hen Loas,Louis Alliot de Borggraeff et al.
Hugues Guillet de Chatellus et al.
The group velocity of light is governed by the dispersive properties of the optical material. Controlling these properties has led to concepts such as fast and slow light. In a vacuum, the group velocity of light is equal to c, excluding a ...
Comprehensive optical monitoring of photopolymer curing for additive manufacturing of diffractive elements [0.03%]
用于衍射元件增材制造的光聚合固化综合光学检测方法研究
Sebastian Haegele,Manuel Rank,Roland A Terborg et al.
Sebastian Haegele et al.
Diffractive optical elements (DOE) offer a wide range of possibilities, from beam shaping to augmented reality and neural networks. Additive manufacturing using photopolymerization curing shows great potential for manufacturing customizable...
Large power dynamic range microwave electric field sensing in a vapor cell [0.03%]
基于蒸气电池的大功率动态范围微波电场传感
Meiyu Ma,Sandan Wang,Yang Yan et al.
Meiyu Ma et al.
Sensing of the microwave (MW) electric field with high accuracy and large power dynamic range has assisted in the implementation of metrology and communication. Here, an atom-based MW sensing system with a large linear power dynamic range f...
Mode-locking of anisotropic Tm,Ho:GdScO3 laser delivering 57-fs pulses at 2078 nm [0.03%]
模式锁定各向异性的Tm，Ho：GdScO3激光器，在2078nm处产生57fs脉冲
Ning Zhang,Heng Ding,Yinyin Wang et al.
Ning Zhang et al.
We report on a SESAM mode-locked bulk laser in the 2 µm spectral range employing a novel Tm,Ho-codoped orthorhombic perovskite crystal, which delivers sub-100 fs pulses with polarization along all three different crystallographic axes. Wit...
Mid-infrared hyperspectral single-pixel microscopy with a quantum cascade laser [0.03%]
基于量子级联激光器的中红外超光谱单像素显微镜
Augustin Zuljevic,Alexander Ebner,Paul Gattinger et al.
Augustin Zuljevic et al.
A hyperspectral mid-infrared (MIR) microscope utilizing single-pixel imaging (SPI) technology is demonstrated. The system integrates a tunable (8.3 µm - 11.1 µm) MIR quantum cascade laser (QCL) and a modified micro-opto-electro-mechanical...
Physical model and analysis of spectral beam combining system with dual-grating external cavity [0.03%]
双栅外腔光谱束合成系统物理模型及分析方法研究
Danni Li,Zhen Wu,Ling Liu et al.
Danni Li et al.
Spectral beam combining (SBC) has the potential to further increase the power irrespective of the limited power of single laser, and to maintain the near-diffraction-limited beam quality. However, the total power, the beam quality, and the ...
Generation and manipulation of high-order orbital angular momentum in helically twisted dual-core photonic crystal fiber based on filling polyglycerol [0.03%]
基于填充聚甘油的螺旋扭曲双核光子晶体光纤中高阶轨道角动量的产生与操控
Tiesheng Wu,Zhangpeng Feng,Xin Cheng et al.
Tiesheng Wu et al.
Orbital angular momentum (OAM) technology shows great potential to enhance communication capacity and spectrum utilization. We propose and numerically investigate a polyglycerol-filled dual-core helically twisted photonic crystal fiber (PFH...
Tunable microwave pulse generation based on active mode-locked optoelectronic oscillator [0.03%]
一种基于主动锁模的可调光载波射频脉冲产生方法
Chenyang Ma,Chen Tian,Shangyuan Li et al.
Chenyang Ma et al.
Recently, active mode-locked optoelectronic oscillators(AML-OEO) have attracted much attention and discussion due to the characteristics of their output signals. In this paper, a structure of AML-OEO is proposed, which has the advantages of...
Broadband planar electromagnetic hyperlens with uniform magnification in air [0.03%]
空气中等倍放大的宽带平面电磁超透镜
Ran Sun,Fei Sun,Hanchuan Chen et al.
Ran Sun et al.
A planar hyperlens, capable of creating sub-wavelength imaging for broadband electromagnetic waves, is designed based on an electromagnetic null medium. Subsequently, a scheme for the implementation of the proposed hyperlens is given by usi...
Xiaoyin Chen,Jiang Li,Lianghui Du et al.
Xiaoyin Chen et al.
In this work, we propose what we believe to be a novel reordered Hadamard basis method, namely frequency-domain modulus-correlation Hadamard (FMH), which ensures uniform increment of spatial frequencies in both two orthogonal directions. Bo...