International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference最新文献_第10页

Multimodality endoscopic imaging technology for visualization of layered architecture and vasculature 用于分层结构和血管系统可视化的多模态内镜成像技术

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2520537

Yan Li, Zhongping Chen

{"title":"Multimodality endoscopic imaging technology for visualization of layered architecture and vasculature","authors":"Yan Li, Zhongping Chen","doi":"10.1117/12.2520537","DOIUrl":"https://doi.org/10.1117/12.2520537","url":null,"abstract":"Endoscopic imaging technologies, such as endoscopic optical coherence tomography (OCT), near infrared (NIR) fluorescence, photoacoustic (PA), and ultrasound (US) have been used to investigate vascular and morphological changes as hallmarks of early cancer in the gastrointestinal (GI) tract. Here, we developed two multimodality imaging systems which are integrated PA/US and integrated OCT/NIR fluorescence which can obtain layered architecture and vasculature simultaneously. In vivo imaging of rectum wall from Sprague Dawley (SD) rats with these two imaging systems were demonstrated. Both imaging systems enable the use of one imaging probe for performing two different imaging, thereby improving prognosis by early detection and reducing costs. For integrated PA/US, the architectural morphology and vasculature of the rectum wall were visualized without the usage of contrast agent, but slow imaging speed and usage of match medium are the main limitations for clinical translation. With regard to the integrated OCT/NIR fluorescence, it is able to perform high speed imaging, however the addition of contrast agent and limited imaging depth are the main concern for clinical application.","PeriodicalId":370739,"journal":{"name":"International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115496095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation on mirror seeing for AIMS solar telescope AIMS太阳望远镜镜面观测性能评价

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2521781

Yongbo Xia, Yongjun Xie, Peng Wang, Xianglong Mao, Xuding Song, Songbo Xu

引用次数: 1

Angular micro-vibration test of an agile satellite high resolution camera based on liner accelerometer 基于线性加速度计的敏捷卫星高分辨率相机角微振动试验

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2521437

Kai Cui, Zhiqi Zheng, Xiong Gao, Yongqing Yang, Zhiguo Li, Shuxiu Li

{"title":"Angular micro-vibration test of an agile satellite high resolution camera based on liner accelerometer","authors":"Kai Cui, Zhiqi Zheng, Xiong Gao, Yongqing Yang, Zhiguo Li, Shuxiu Li","doi":"10.1117/12.2521437","DOIUrl":"https://doi.org/10.1117/12.2521437","url":null,"abstract":"The angular micro-vibration of a high resolution camera mounting on an agile satellite was achieved based on pairs of liner accelerometers alignment and numerical integration method. Three pairs of sensors were mounted at different portion of the satellite for studying the structure transfer character, including the Reaction Wheel (RW)interface, the camera interface and the camera tail. The results showed that the RW original micro-vibration standard deviation (STD) output acquired at the RW interference was 1.63μrad at RW 400rpm and increased to 2.43μrad when the RW speed up to 800rpm. When transferring from RW to the camera interface, the angular vibration response STD was attenuated to 0.31μrad@400rpm and 0.27μrad@800rpm, and finally to the camera tail the angular vibration response STD became 0.31μrad@400rpm and 0.30μrad@800rpm. We can see that the satellite-camera structure has a good attenuation effect on the micro-vibration, the output angular micro-vibration STD is about 0.31μrad with an input of 1.63μrad~2.43μrad. the stiffness of the camera is pretty good, ensuring that the micro-vibration STD difference between the camera flange and the camera tail is smaller 0.03μrad. In addition, we found that the FOGs useful bandwidth wasn’t insufficient when acquiring about 340Hz main frequency vibration signal in our case, even though a higher stiffness flange was recommended which connecting the FOG and camera.","PeriodicalId":370739,"journal":{"name":"International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127859814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

1.3μm InAs/InGaAs QD laser steady output power over 1.07 W 1.3μm InAs/InGaAs QD激光器稳定输出功率大于1.07 W

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2521947

Fu-Hui Shao, Yi Zhang, X. Su, H. Hao, Ying-qiang Xu, H. Ni, Yu Zhang, Z. Niu

引用次数: 0

Athermalization optical design of dual-wavelength infrared optical system with double-layer harmonic elements 双层谐波双波长红外光学系统的热化光学设计

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2521909

Fuzeng Kang, Yangyu Fan, Guoyun Lv, Yongsheng Gao, Hao Wang, Yichao Li

{"title":"Athermalization optical design of dual-wavelength infrared optical system with double-layer harmonic elements","authors":"Fuzeng Kang, Yangyu Fan, Guoyun Lv, Yongsheng Gao, Hao Wang, Yichao Li","doi":"10.1117/12.2521909","DOIUrl":"https://doi.org/10.1117/12.2521909","url":null,"abstract":"A mathematical model of the diffraction efficiency change with the ambient temperature for the double-layer harmonic diffractive elements (HDE) is presented, and its effects are analyzed in this paper. The double-layer HDE structure is investigated and the optimization procedure is based on the equation of diffraction efficiency of the double-layer HDEs. By selecting appropriate design wavelength, the average diffraction efficiency of the system is reaching 99% in working wavelength and working temperature, which improves the image contrast and the image quality significantly. A set of dual-wavelength infrared optical system is designed based on dual-wavelength 320x240 element cooled thermal IR focal plane arrays detector. By introducing double-layer HDEs and aspheric surfaces, the chromatic aberration and the off-axis aberration are well corrected and the system structure is simplified. The system working in the wave band of 3.7~4.8μm and 7.7~9.5μm and with the F number of 2 is consisted of 8 elements and has 100% cold shield efficiency. The image quality evaluating results show that the performance of the dual-wavelength infrared optical system is very well in temperature from -40C° to +60C°.","PeriodicalId":370739,"journal":{"name":"International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114070269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A spatial moving target recognition algorithm based on full information vector 一种基于全信息向量的空间运动目标识别算法

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2521938

Yun Du, Desheng Wen, Guizhong Liu, Hongwei Yi, Meiying Liu, Junli Fang

引用次数: 0

Sparse aperture masking technique on measurement of star diameter 稀疏孔径掩模技术在星径测量中的应用

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2522451

Yanqiang Wang, Chunmin Zhang, Yifan He

引用次数: 0

Fabrication of a high-fill-factor microlens array using different thermal reflow process 采用不同热回流工艺制备高填充系数微透镜阵列

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2522470

Biao Yang, Jinyun Zhou

引用次数: 1

Road meteorological condition sensor based on multi-wavelength light detection 基于多波长光检测的道路气象状况传感器

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2522311

C. Ruan, Yuntao Wang, Xinxue Ma, Heng Kang

引用次数: 4

Calculation and hue mapping of AoP in polarization imaging 偏振成像中AoP的计算与色相映射

International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference Pub Date : 2019-01-24 DOI: 10.1117/12.2523643

Bin Feng, Rongli Guo, Faqiang Zhang, F. Zhao, Yue Dong

引用次数: 1