[其它] Ghost imaging for an axially moving target with an unknown constant speed

说明：The influence of the axial relative motion between the target and the source on ghost imaging (GI) is investigated. Both the analytical and experimental results show that the transverse resolution of GI is reduced as the deviation of the target’s cen
<weixin_38562026> 上传 | 大小：546kb

[其它] Laser-induced controllable chirped-pitch circular surface-relief diffraction gratings on AZO glass

说明：Chirped-pitch nanoscale circular surface-relief diffraction gratings were photoinscribed on thin films of a Disperse Red 1 functionalized material using a holographic technique. A truncated conical mirror splits and redirects a converging or divergin
<weixin_38625184> 上传 | 大小：886kb

[其它] Canonical logic units using bidirectional four-wave mixing in highly nonlinear fiber

说明：All-optical canonical logic units at 40 Gb/s using bidirectional four-wave mixing (FWM) in highly nonlinear fiber are proposed and experimentally demonstrated. Clear temporal waveforms and correct pattern streams are successfully observed in the expe
<weixin_38609732> 上传 | 大小：810kb

[其它] Enhanced Kerr electro-optic nonlinearity and its application in controlling second-harmonic generation

说明：We proposed a new scheme of controlling second-harmonic generation by enhanced Kerr electro-optic nonlinearity. We designed a structure that can implement the cascaded Pockels effect and second-harmonic generation simultaneously. The energy coupling
<weixin_38723513> 上传 | 大小：974kb

[其它] 速度感测中自混合散斑信号的分形分析

说明：提出了一种基于分形理论的速度分析方法。 自混合斑点信号的波形被处理为分形的图案。 分形盒被定义为用于划分分形图案的一组网格，并且引入了盒计数（BC）来表征散斑信号的统计特性。 通过计算与物体不同速度相对应的BC，分析了一组模拟的斑点信号。 获得散斑信号的BC与速度之间的线性相关性，其结果通过分析从实验中获得的一组信号来验证。 分形分析的性能与以前的分析方法进行了比较。 显示了更好的线性度和更高的分形分析测量灵敏度。 实验结果表明，分形方法可以作为速度感测中自混合散斑信号的有效分析工具。
<weixin_38674569> 上传 | 大小：191kb

[其它] Cross-talk-free integral imaging three-dimensional display based on a pyramid pinhole array

说明：We propose a cross-talk-free integral imaging 3D display based on a pyramid pinhole array. The pyramid pinhole array is used to provide a point light source array. Since the generated point light source array is behind a transmission-type display pan
<weixin_38570202> 上传 | 大小：457kb

[其它] Tunable bandwidth optical rotator

说明：We propose and experimentally demonstrate a novel type of polarization rotator that is capable of rotating the polarization plane of a linearly polarized light at any desired angle in either broad or narrow spectral bandwidth. The rotator comprises a
<weixin_38528086> 上传 | 大小：226kb

[其它] Modification of wettability of stainless steel by picosecond laser surface microstructuring

说明：We report on the modification of the wettability of stainless steel by picosecond laser surface microstructuring in this paper. Compared with traditional methods, picosecond laser-induced surface modification provides a fast and facile method for sur
<weixin_38746018> 上传 | 大小：594kb

[其它] Effect of packing density and packing geometry on light extraction of III-nitride light-emitting diodes with microsphere

说明：The finite-difference time-domain method was employed to calculate light extraction efficiency of thin-film flip-chip InGaN/GaN quantum well light-emitting diodes (LEDs) with TiO2 microsphere arrays. The extraction efficiency for LEDs with microspher
<weixin_38534683> 上传 | 大小：1mb

[其它] Sensitivity of on-line wavelength during retrieval of atmospheric CO

说明：Accurately measuring the differential molecular absorption cross section is the key to obtaining a high-precision concentration of atmospheric trace gases in a differential absorption lidar (DIAL) system. However, the CO
<weixin_38686153> 上传 | 大小：487kb

[其它] 一种新的低照度彩色图像降噪算法

说明：针对低照度监控图像存在大量噪声的情况,按照视觉心理感知特性选择HSV颜色空间,在此空间提出了一种新的低照度彩色图像降噪的算法,保持色调不变,针对饱和度和亮度分量的不同特征,分别采用了中值滤波和基于边缘提取的降噪方法。实验结果表明该算法在保持了色调和边缘不变的同时,提高了图像信噪比,降噪效果明显。
<weixin_38639747> 上传 | 大小：317kb

[其它] 1.3 kW monolithic linearly polarized single-mode master oscillator power amplifier and strategies for mitigating mode in

说明：We report on the high-power amplification of a 1064 nm linearly polarized laser in an all-fiber polarizationmaintained master oscillator power amplifier, which can operate at an output power level of 1.3 kW. The beam quality (M
<weixin_38693753> 上传 | 大小：846kb