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International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT)最新文献

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Zoom lens with large aperture and long focal length in the integration system of detection and recognition 在检测识别集成系统中采用大光圈长焦距变焦镜头
Rui Yao, Xu-yang Li, Zixuan Ma, Zhi-guang Ren, Nanqing Chu
This paper designs an integrated optical system for detection and recognition. The system combines the R-C (Ritchey-Chretien optics) system and the zoom structure. The R-C mirror design of the initial structure of the system is completed by calculation of theory. Then, use the zoom theory to complete the design of the two zoom positions. The two zoom positions respectively realize the detection and identification of space debris. The F numbers are 5.86 and 11. The field of view angles are 2.83°and 0.6°. It works in band of 400-750nm. The system has an entrance pupil diameter of 300mm. The detection position can detect space debris with a brightness of 13 magnitude stars, with focal length of 1760mm; the recognition position’s modulation transfer function is greater than 0.6 at the Nyquist frequency of 33.33lp/mm, with the focal length of 3300mm. The zoom theory is well applied in the integrated detection and recognition system.
本文设计了一种用于检测和识别的综合光学系统。该系统结合了R-C(里奇-克雷蒂安光学)系统和变焦结构。通过理论计算完成了系统初始结构的R-C反射镜设计。然后,运用变焦理论完成了两个变焦位置的设计。这两个变焦位置分别实现了空间碎片的检测与识别。F值是5.86和11。视场角度分别为2.83°和0.6°。它工作在400-750nm波段。该系统的入口瞳孔直径为300毫米。探测位置可探测亮度为13等恒星的空间碎片,焦距为1760mm;在奈奎斯特频率为33.33lp/mm时,识别位置的调制传递函数大于0.6,焦距为3300mm。变焦理论在综合检测识别系统中得到了很好的应用。
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引用次数: 0
Design of a line-scanning dispersive objective lens for chromatic confocal displacement sensor 彩色共焦位移传感器用线扫描色散物镜的设计
Tingting Huang, Jie Yang, Tao Ma
An efficient optimal designing method for a quantitative dispersive objective lens used in line-scanning chromatic confocal displacement sensor was discussed. A multi-configuration optical system consisted of paraxial and diffractive surfaces was proposed to realize the quantitative inverse linear dispersion distance in the wide FOV. The ideal optical model was used as the objective FOV for the design of dispersive lens in the inverse optical path. The multi-configuration with the axial quantitative dispersion was implicit in the single configuration optical path, so that the image plane becomes a unified reference plane for image quality evaluation. With this method, a dispersive objective lens of 580nm-780nm working wavelength band and 0.37 mm axial dispersion distance was designed, which the line-scanning width is 16 mm and the dispersive linearity is better than 0.9997.
讨论了用于线扫描色散共焦位移传感器的定量色散物镜的优化设计方法。提出了一种由近轴面和衍射面组成的多构型光学系统,实现了宽视场下定量逆线性色散距离。利用理想光学模型作为物镜视场,设计了反光路色散透镜。将具有轴向定量色散的多构型隐含在单构型光路中,使成像平面成为评价成像质量的统一参考平面。利用该方法设计了工作波长为580nm ~ 780nm,轴向色散距离为0.37 mm的色散物镜,其线扫描宽度为16 mm,色散线性度优于0.9997。
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引用次数: 0
A new optical polarizing prism extinction ratio measurement method based on heterodyne-detecting 一种基于外差检测的偏振棱镜消光比测量新方法
Zhen-dong Shi, Hua Ma, Lin Zhang, Jinxi Bai, Yi Yang, Huan Ren, Liqun Chai
We present a method for measuring the polarization extinction ratio of a prism with the heterodyne-detecting. The key of this method is converting the intensity difference of more than one million times between vertical and parallel polarized transmitted light to almost equal level, so as to overcome the difficulty of measuring the intensity of both vertical and parallel components in the linear response range of a normal photodetector without attenuation. Using this method, we have realized the measurement of a polarizing Glan-Taylor prism with extinction ratio of 60.4dB.
提出了一种用外差测量棱镜偏振消光比的方法。该方法的关键是将垂直偏振光与平行偏振光之间超过一百万倍的光强差转换到几乎相等的水平,从而克服了普通光电探测器在线性响应范围内同时测量垂直分量和平行分量强度而不衰减的困难。利用该方法,我们实现了消光比为60.4dB的偏振Glan-Taylor棱镜的测量。
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引用次数: 0
The research on optical free-form metrology technologies 光学自由曲面计量技术的研究
Xinxue Ma, Jianli Wang, Bin Wang, Xinyue Liu, Hongwen Li
With the rapid development of national defense, aerospace and other fields, the demand for high precision and high quality photoelectric products is increasing day by day, and these photoelectric products are gradually developing toward miniaturization. If the optical elements use a free-form, the imaging quality of the optical imaging system can be greatly improved, and the illumination uniformity of the optical illumination system and the transmission efficiency of the information transmission system can also be remarkably improved. With free-form optics becoming the leading representative technology of advanced optical engineering, optical metrology technologies for free-form optics has become the hotspot research of current science-technology development. In this paper, the development of optical metrology technologies, the present situation and the advantages and disadvantages of various metrology technologies are described in detail, which will be of guiding significance for future research on optical metrology technologies for free-form optics.
随着国防、航空航天等领域的快速发展,对高精度、高质量光电产品的需求日益增加,这些光电产品逐渐向小型化方向发展。如果光学元件采用自由形式,可以大大提高光学成像系统的成像质量,也可以显著提高光学照明系统的照度均匀性和信息传输系统的传输效率。随着自由曲面光学成为先进光学工程的主导代表技术,自由曲面光学的光学计量技术已成为当前科技发展的研究热点。本文详细介绍了光学计量技术的发展、现状以及各种计量技术的优缺点,对今后自由曲面光学光学计量技术的研究具有指导意义。
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引用次数: 1
Conjugated polymer film fabricated by in situ electro-chemical polymerization as effective interface modification material in organic solar cells 原位电化学聚合法制备共轭聚合物薄膜作为有机太阳能电池的有效界面改性材料
R. Wang, Dayong Zhang, Genjie Yang, Junsheng Yu
Electro-chemical polymerization has identified to be a facile and useful method for the preparation of electroactive and conducting polymer films, and capability of precise control of the film properties. With this strategy, a large number of conjugated polymers were developed as specific interface modification layers to meet the requirements from various electronic equipment. Here we report the synthesis of conjugated polymer film prepared by in situ electro-chemical polymerization as effective interface modification layer between ITO and ZnO in organic solar cells. By optimizing the polymerization potential to control accurately the thickness of conjugated polymer layer, the resulting devices show significantly enhancement of short-circuit current, with an optimized power conversion efficiency (PCE) of 14.9%. As a result, the reasonable interface modification strategy via electro-chemical polymerization seems to be able to bring a new design perspective for the development of high-performance organic solar cells.
电化学聚合是制备具有电活性和导电性的聚合物薄膜的一种简便而有效的方法,并且能够精确地控制薄膜的性质。利用这一策略,开发了大量的共轭聚合物作为特定的界面修饰层,以满足各种电子设备的要求。本文报道了用原位电化学聚合法制备的共轭聚合物薄膜作为有机太阳能电池中ITO和ZnO之间有效的界面修饰层的合成。通过优化聚合电位来精确控制共轭聚合物层的厚度,得到的器件短路电流显著增强,优化后的功率转换效率(PCE)为14.9%。因此,合理的电化学聚合界面修饰策略似乎可以为高性能有机太阳能电池的发展带来新的设计视角。
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引用次数: 0
Surface passivation of active layer by introducing sodium alginate for high-performance perovskite photodetectors 引入海藻酸钠对高性能钙钛矿光电探测器活性层的表面钝化
Genjie Yang, Dayong Zhang, Jiawen Li, Junsheng Yu
Recently, organic metal halide perovskites have attracted wide attention in the field of photovoltaic devices due to series of excellent photoelectric properties. However, the device performance is limited by a large number of surface defects in the perovskite film. Finding an effective method for defect passivation of perovskite film is considered to be a preferred strategy to further improve the performance of perovskite photovoltaic devices. Here, we use an organic metal salt, sodium alginate (SA), to passivate the surface defects of perovskite films to prepare high-performance perovskite photodetectors (PePDs). We find that the introduction of SA can improve the quality of perovskite active layer and passivate the surface defects effectively, which reduce the carrier recombination probability to increase the photocurrent and reduce the dark current of the PePDs. And the detectivity (D*) at 600 nm reaches 3.6×1012 Jones, three times that of the controlled devices. Meanwhile, the PePDs doped with sodium alginate have better stability and device life, which remains 82% of the original performance after being placed in the atmosphere for 7 days. These results indicate that it is an effective strategy to passivate perovskite film with organic metal salt to prepare high-performance PePDs.
近年来,有机金属卤化物钙钛矿因其一系列优异的光电性能在光伏器件领域引起了广泛的关注。然而,由于钙钛矿薄膜表面存在大量缺陷,限制了器件的性能。寻找一种有效的钙钛矿薄膜缺陷钝化方法被认为是进一步提高钙钛矿光伏器件性能的首选策略。在这里,我们使用有机金属盐海藻酸钠(SA)钝化钙钛矿薄膜表面缺陷,以制备高性能钙钛矿光电探测器(pepd)。我们发现SA的引入可以提高钙钛矿活性层的质量,有效地钝化表面缺陷,从而降低载流子复合概率,增加光电流,降低pepd的暗电流。在600 nm处的探测率(D*)达到3.6×1012 Jones,是被控器件的3倍。同时,掺入海藻酸钠的pepd具有更好的稳定性和器件寿命,在大气中放置7天后仍保持82%的原始性能。这些结果表明,用有机金属盐钝化钙钛矿膜是制备高性能聚乳酸磷酸酯的有效策略。
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引用次数: 0
Design of broadband and monolayer terahertz metasurface absorber with genetic algorithm optimization 基于遗传算法优化的宽带单层太赫兹超表面吸收器设计
Ming Zhang, Qian Cheng, Yinjin Wu, Dongfang Chen, Ze Ma, Congwu Li
Terahertz (THz) absorbers have drawn great attention due to their potential applications in high-resolution imaging systems, sensing, and imaging. In particular, metasurface-based THz absorbers have exhibited the exotic advantage in high efficiency and broad bandwidth benefitted from the excellent abilities of metasurface in flexible modulating electromagnetic (EM) waves. However, the interactions between metasurface and EM waves are complex, and the metasurface-based absorbers have many structural parameters to optimize for high performance. Therefore, the absorbers are constrained by the manual design process with limited geometry complexity and tedious parameters sweeping. In this paper, the genetic algorithm (GA) is employed to the design of THz metasurface absorber. The EM responses of metasurface device is calculated by a simple yet powerful analytic method derived from catenary field. The employment of GA can achieve the automatic design process and demand-oriented reverse design for high performance and decreasing time consumption. As a proof-of-concept, the broadband and monolayer metasurface terahertz absorber with absorbance exceeding 80% in the frequency range from 1 to 4 THz is designed by the proposed strategy based on five typical types of metasurface. The investigations of this article present important guidance and a promising approach to design and optimize metasurface-based devices for their practical applications.
太赫兹(THz)吸收器由于其在高分辨率成像系统、传感和成像方面的潜在应用而引起了人们的极大关注。特别是基于超表面的太赫兹吸波器,由于超表面具有灵活调制电磁波的能力,在高效率和宽带宽方面表现出了独特的优势。然而,超表面与电磁波之间的相互作用是复杂的,并且基于超表面的吸收器有许多结构参数需要优化以获得高性能。因此,吸波器受手工设计过程的限制,几何复杂性有限,参数扫描繁琐。本文将遗传算法应用于太赫兹超表面吸收器的设计。采用一种简单而强大的接触网场解析方法计算了超表面器件的电磁响应。采用遗传算法可以实现设计过程的自动化和需求导向的逆向设计,从而提高了设计的性能,降低了设计的耗时。作为概念验证,基于五种典型的超表面,设计了在1 ~ 4太赫兹频率范围内吸光度超过80%的宽带单层超表面太赫兹吸收体。本文的研究为设计和优化基于超表面的器件的实际应用提供了重要的指导和有前途的方法。
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引用次数: 0
Lithographic exposure latitude aware source and mask optimization 平版曝光纬度感知源和掩模优化
Lulu Zou, Lihui Liu, Yiyu Sun, Pengzhi Wei, Miao Yuan, Zhaoxuan Li, Yaning Li, Yanqiu Li
Source and mask optimization (SMO) technology is an increasingly important resolution enhancement technology (RET) that can optimize the source and mask. Various SMO methods have made great progress in terms of computational efficiency and pattern fidelity. Besides, process window (PW) is also an important indicator to evaluate the performance of lithography imaging. PW consists of exposure latitude (EL) and depth of focus (DOF). However, currently, there are few SMO methods that can directly improve EL. In this paper, we propose an EL aware SMO (ELASMO) method by innovating a new penalty function for improving the exposure latitude. Compared to the conventional SMO, the proposed ELASMO can significantly enhance aerial image contrast and enlarge the exposure latitude from 5% to 11% under the premise of ensuring imaging fidelity. ELASMO achieves high-fidelity lithography in a larger process window.
源与掩模优化(SMO)技术是一种日益重要的分辨率增强技术(RET),它可以优化源与掩模。各种SMO方法在计算效率和模式保真度方面都取得了很大的进步。此外,过程窗口(PW)也是评价光刻成像性能的重要指标。PW由曝光纬度(EL)和焦距(DOF)组成。然而,目前能够直接改善EL的SMO方法很少。在本文中,我们通过创新一个新的惩罚函数来提高曝光纬度,提出了一种EL感知SMO (ELASMO)方法。与传统的SMO相比,在保证成像保真度的前提下,本文提出的ELASMO可以显著提高航空图像对比度,并将曝光纬度从5%扩大到11%。ELASMO在更大的工艺窗口中实现高保真光刻。
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引用次数: 1
In-situ measurement technology of robotic polishing system 机器人抛光系统的原位测量技术
Wen Wang
With vigorous development of modern optical manufacturing in the direction of intelligence and precision, coupled with the continuous increase in the diameter of optical components and continuous improvement of precision requirements, industrial robot polishing technology has a wide range of application scenarios and broad development space in the field of optical manufacturing. The integration of processing and measurement is a key technology to improve the reliability and intelligence of precision manufacturing. Therefore, the research and development of in-situ measurement technology has become an important trend in the field of optical manufacturing. A measurement method based on deflectometry is a type of surface gradient measurement method that has been proposed and developed in recent years. Due to the advantages of superior simplicity, stability, and high dynamic range, it is promising for the in-situ measurement of optical surfaces. Based on monoscopic deflectometry, this paper develops an in-situ measurement device for industrial robot polishing system. The key problems of phase decoupling and optical path correction of transparent components are being researched, and high-precision double-surface measurement of transparent optical elements is realized, which is of great significance to the intelligent manufacturing of key optical elements.
随着现代光学制造向智能化、精密化方向的大力发展,再加上光学元件直径的不断增大和精度要求的不断提高,工业机器人抛光技术在光学制造领域有着广泛的应用场景和广阔的发展空间。加工与测量一体化是提高精密制造可靠性和智能化的关键技术。因此,原位测量技术的研究和开发已成为光学制造领域的一个重要趋势。基于偏转法的测量方法是近年来提出并发展起来的一种表面梯度测量方法。该方法具有简单、稳定、动态范围大等优点,在光学表面的原位测量中具有广阔的应用前景。基于单镜偏转测量技术,研制了一种用于工业机器人抛光系统的原位测量装置。研究了透明光学元件的相位解耦和光路校正等关键问题,实现了透明光学元件的高精度双面测量,对关键光学元件的智能制造具有重要意义。
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引用次数: 0
Position prediction of the oyster adductor muscle based on YOLOv3 algorithm 基于YOLOv3算法的牡蛎内收肌位置预测
Chao Ma, K. Cheng, Jun Liu, Shu-Wei Xu, J. Han
Oyster is one of the largest cultured shellfish in the world, though it remains a challenge to shuck oysters automatically by mechanical systems, which has attracted interests of research for a long time. We design a low-cost high-temperature steam beam to heat the adductor muscle attachment area with high precision to shuck the oysters. This approach, compared to the overall heating processes, causes much less damage to the quality and physiological structure of the oysters. The key issue of our method lies in locating the adductor muscle outside of the shells as there is no obvious feature of judgment due to the irregular shapes and variant sizes of the oysters. To this end, we proposed a deep learning method for predicting the position of the adductor muscle based on the YOLOv3 algorithm. In this paper, we establish an image dataset containing 520 oyster pictures, 120 of which are labeled pictures. These images are trained in the deployment environment of GTX 1060. Experiments show that the accuracy of the model is up to 99.5%, the prediction accuracy of the adductor muscle position reaches 79.17%, and the average time to detect one single image is around 0.03s.
牡蛎是世界上养殖的最大的贝类之一,但利用机械系统自动脱壳仍然是一个挑战,长期以来一直吸引着人们的研究兴趣。我们设计了一种低成本的高温蒸汽束,对内收肌附着区域进行高精度加热,实现牡蛎的脱壳。与整个加热过程相比,这种方法对牡蛎的质量和生理结构造成的损害要小得多。我们方法的关键问题在于定位壳外的内收肌,因为牡蛎的形状不规则,大小不一,没有明显的判断特征。为此,我们提出了一种基于YOLOv3算法的内收肌位置预测的深度学习方法。在本文中,我们建立了一个包含520张牡蛎图片的图像数据集,其中120张是标记图片。这些图像是在GTX 1060的部署环境中训练的。实验表明,该模型的准确率高达99.5%,内收肌位置的预测准确率达到79.17%,检测单幅图像的平均时间在0.03s左右。
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引用次数: 0
期刊
International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT)
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