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Design of optical surveillance system for balloon-base load cabin in near space 近空间气球载舱光学监控系统设计
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2551419
Zhanchao Wang, Min Huang, Lulu Qian, Baowei Zhao
{"title":"Design of optical surveillance system for balloon-base load cabin in near space","authors":"Zhanchao Wang, Min Huang, Lulu Qian, Baowei Zhao","doi":"10.1117/12.2551419","DOIUrl":"https://doi.org/10.1117/12.2551419","url":null,"abstract":"Near space usually refers to the earth space with a height of about 20-100 km. It is a highly interdisciplinary field involving atmospheric physics, space physics, plasma physics, photochemistry, solar and geosciences, Geosciences and life sciences. The development and utilization of near space is far less than that of traditional airspace and satellite orbital space. Near space usually corresponds to areas where traditional airplanes are difficult to fly and satellites are not easy to detect. Compared with the middle and lower atmosphere and higher ionosphere and outer space, there has been a lack of systematic and efficient observers in the near space for a long time. Objectively, near space has become a weak point of human's understanding of the whole earth's space.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124728711","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
Vibration measurement and mount design for cryocoolers on GMT and large telescopes 振动测量和安装在GMT和大型望远镜上的制冷机设计
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2539923
D. Adams, A. Vaccarella, W. Schofield, R. Sharp, J. Gilbert, G. Gausachs
{"title":"Vibration measurement and mount design for cryocoolers on GMT and large telescopes","authors":"D. Adams, A. Vaccarella, W. Schofield, R. Sharp, J. Gilbert, G. Gausachs","doi":"10.1117/12.2539923","DOIUrl":"https://doi.org/10.1117/12.2539923","url":null,"abstract":"Cryocoolers have long been demonstrated to be a dominant source of vibration that have caused significant problems with AO systems on large telescopes. Existing large telescopes have already imposed strict vibration requirements on instruments in response to existing problems, and have often struggled to achieve them. As the field moves into the next generation telescopes with GMT, TMT and eELT, vibration requirements continue to get ever tighter. Instrument teams must respond to these more demanding requirements by careful selection of cryocoolers and thoughtful design of cryocooler mounts that are matched closely with the specific requirements of the telescope. As we will demonstrate in this paper there is not a one-size-fits-all solution for every instrument and every telescope. In this paper we demonstrate a general method of deriving the required performance for an anti-vibration mounts for cryocoolers. First we characterize a linear Stirling-type cryocooler as a source of vibration, and determine what compliant mounts would be required to make them acceptable for use on the VLT, GMT and TMT. Measurements are taken of vibration from a Cryotel GT linear Stirling cooler (with active vibration cancellation enabled). By comparing the measured vibration against the requirements of each telescope, we are able to determine the required transfer function and therefore the required spring rate for compliant mounts. The results indicate that while some simple rubber mounts may be sufficient for use with the VLT and TMT, but a compliant mount with natural frequency below 14 Hz must be used for GMT.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123701233","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: 1
A prototype experiment of the adaptive deformable mirror based on voice coil and Eddy Current Sensor 基于音圈和涡流传感器的自适应变形镜原型实验
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2539774
Heng Zuo, Hao Li, Guohua Zhou, Guo-ping Li
{"title":"A prototype experiment of the adaptive deformable mirror based on voice coil and Eddy Current Sensor","authors":"Heng Zuo, Hao Li, Guohua Zhou, Guo-ping Li","doi":"10.1117/12.2539774","DOIUrl":"https://doi.org/10.1117/12.2539774","url":null,"abstract":"Large adaptive deformable mirror is becoming a trend for ground base telescope, at present almost all the large adaptive deformable mirrors in use are driven by voice coil, simultaneously the capacitive sensor is used as a feedback component. While the Eddy Current Sensor could have a lot of advantages over the capacitive one in large deformable mirror. In this research a prototype of 150mm deformable mirror is built, which is driven by 7 voice coil actuators, the ECSs are used in this prototype instead of capacitive ones. In the prototype experiment some standard low-order aberrations applied on the mirror could be corrected as expected, so it could be proved that the ECS could be used in large adaptive deformable mirror to take place of the capacitive one.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125149993","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
Research progress of 698nm narrow-linewidth lasers applied for Sr atom optical clocks at NTSC 698nm窄线宽激光器用于Sr原子光学钟的研究进展
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2547575
Long Chen, Linbo Zhang, Jun Liu, Guanjun Xu, Chenhui Jiang, Le Fan, Tao Liu, R. Dong, Shougang Zhang
{"title":"Research progress of 698nm narrow-linewidth lasers applied for Sr atom optical clocks at NTSC","authors":"Long Chen, Linbo Zhang, Jun Liu, Guanjun Xu, Chenhui Jiang, Le Fan, Tao Liu, R. Dong, Shougang Zhang","doi":"10.1117/12.2547575","DOIUrl":"https://doi.org/10.1117/12.2547575","url":null,"abstract":"Narrow linewidth frequency-stabilized lasers are crucial in the research of optical clocks, precision spectroscopy, and tests of fundamental physics. Narrow linewidth laser with the wavelength of 698nm is essential in the development of Sr atom optical clocks that will be used for the frequency standards in the future. Here we report the recent development of ultra-stable lasers at national time service center, Chinese academy of sciences (NTSC). In the experiment, the frequency of an extended cavity diode laser at the wavelength of 698nm is stabilized to a reference cavity with a finesse of ~130000 using the Pound-Drever-Hall methods. The optical heterodyne beat between two independent lasers shows that the linewidth of one diode laser reaches 0.88Hz. The fractional frequency stability removed linear frequency shift is better than 2×10-15.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126606176","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
Ultrafast laser inscription of astrophotonic integrated optical circuits 天体光子集成光学电路的超快激光刻录
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2549180
S. Gross, T. Gretzinger, A. Arriola, G. Douglass, A. Ross-Adams, T. Fernandez, M. Withford
{"title":"Ultrafast laser inscription of astrophotonic integrated optical circuits","authors":"S. Gross, T. Gretzinger, A. Arriola, G. Douglass, A. Ross-Adams, T. Fernandez, M. Withford","doi":"10.1117/12.2549180","DOIUrl":"https://doi.org/10.1117/12.2549180","url":null,"abstract":"Ultrafast laser inscription is a technique to create low-loss three dimensional optical circuits within bulk dielectrics that is compatible with a wide range of optical materials. Its unique capabilities and the ability to rapid prototype and quickly iterate through different designs has made it exceptionally attractive for astrophotonics. This paper will summarize the basic aspects of ultrafast laser inscription and review recent progress in its application to astrophotonics, such as stellar interferometry.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134157952","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
Steering Starbugs: routing autonomous fibre positioners for TAIPAN 引导星虫:为TAIPAN路由自主光纤定位器
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2541296
N. Fernando, C. Bacigalupo, T. Farrell, N. Lorente
{"title":"Steering Starbugs: routing autonomous fibre positioners for TAIPAN","authors":"N. Fernando, C. Bacigalupo, T. Farrell, N. Lorente","doi":"10.1117/12.2541296","DOIUrl":"https://doi.org/10.1117/12.2541296","url":null,"abstract":"The TAIAPAN instrument, being developed by the Australian Astronomical Optics (AAO) - Macquarie University, deploys 159 Starbug robots to position optical fibers on a 32 cm glass field plate on the focal plane of the 1.2 m UK-Schmidt telescope. The Starbug Routing algorithm created for the instrument allows the autonomous robots to reach accuracies of 0.5 arcsec of the assigned target. It employs a 3 stage tiered approach to find a collision-free path for Starbugs of increasing complexity and computational cost. For each Starbug a path is attempted using a direct simultaneous movement. If unsuccessful, subsequently more complex (and expensive) methods are tried until a valid path is found or the target is discarded. The system uses a MongoDB database to record and retrieve starbug locations and properties which allow in-situ re-routing to take place as well.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121297714","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
The impact of fiber fusion splicing on the focal ratio degradation and transmission of LAMOST fiber system 光纤熔接对LAMOST光纤系统焦比退化及传输的影响
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2549835
Jian Li, Guanru Lyu, Shuqing Wang, Yonghui Hou
{"title":"The impact of fiber fusion splicing on the focal ratio degradation and transmission of LAMOST fiber system","authors":"Jian Li, Guanru Lyu, Shuqing Wang, Yonghui Hou","doi":"10.1117/12.2549835","DOIUrl":"https://doi.org/10.1117/12.2549835","url":null,"abstract":"We report results of the impact of fiber fusion splicing on Focal Ratio Degradation (FRD) and transmission loss of Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) fiber system. We test at f/5 input f-ratio conditions, the influence of fiber fusion splicing on FRD and transmission respectively in the laboratory. A precision test system was designed to reduce the system error and human error. The measurement accuracy of the system reaches micron scale. The fiber end surface was prepared by large core fiber cutter, grinder and fusion splicing workstation. The fiber surface roughness is less than 1 micron and the surface angle is less than 0.5°. By optimize the cutting and polish process, adjusted the fusion parameters, a satisfactory results of optical fiber fusion obtained in the laboratory. The maximum transmission increase caused by the fiber fusion is less than 3%, average value is about 1%; while the maximum FRD increase is about 0.12°. We repaired 14 damaged optical fibers of LAMOST fiber system by use fiber fusion method, and the average peak light intensity of the repaired fiber reaches more than 90% of the peak light intensity of the normal use fiber in action. Our results indicate that fiber fusion technology can be adopted for repair failure optical fiber, replace the fiber clips and astronomical instrument construction.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"299 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121454725","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
MANIFEST metrology toolkit MANIFEST计量工具包
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2539897
M. Goodwin, S. E. Hong
{"title":"MANIFEST metrology toolkit","authors":"M. Goodwin, S. E. Hong","doi":"10.1117/12.2539897","DOIUrl":"https://doi.org/10.1117/12.2539897","url":null,"abstract":"The MANIFEST Metrology Toolkit for GMT is set of in-house software tools to assist in the concept development and demonstration of the MANIFEST Metrology System. The Metrology Toolkit forms part of the ongoing MANIFEST pre- Concept Design Study conducted throughout 2019. The Metrology System is an essential component to provide precise location measurements of Starbugs over the focal-plane and relay this information to the positioning system. The goal of the Metrology System is to provide a positional measurement better than 30 microns (0.03 arcsecs) over a field-plate diameter of 1.2 m. The Metrology Toolkit is intended to be flexible to verify different implementations of the Metrology System.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116184255","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 UV-visible prime focus camera for the Keck telescopes 用于凯克望远镜的紫外可见定焦相机
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2540717
P. Gillingham, J. Cooke, K. Glazebrook, J. Mould, Roger M. Smith, C. Steidel
{"title":"A UV-visible prime focus camera for the Keck telescopes","authors":"P. Gillingham, J. Cooke, K. Glazebrook, J. Mould, Roger M. Smith, C. Steidel","doi":"10.1117/12.2540717","DOIUrl":"https://doi.org/10.1117/12.2540717","url":null,"abstract":"Many areas of astronomical research rely on deep blue wide-field imaging. Mauna Kea enjoys the very best UV transparency from the ground and the Keck telescopes with 10 meter f/1.75 primaries are well suited to a prime focus camera with a large angular field. Swinburne University leads a proposal to provide a camera (KWFI, for Keck Wide Field Imager) that is optimized in the UV but works well to 1μm wavelength. Keck has interchangeable top end modules, of which one is now unused and easily capable of housing the required corrector lens and detector enclosure. This paper concentrates on details of the KWFI optical design.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114812223","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: 4
Space-situational awareness adaptive optics at Mount Stromlo: data analysis of the first results 斯特罗姆洛山空间态势感知自适应光学系统:第一批结果的数据分析
Micro + Nano Materials, Devices, and Applications Pub Date : 2020-01-03 DOI: 10.1117/12.2541330
V. Korkiakoski, M. Copeland, F. Bennet, M. Lingham, D. Grosse, Jesse Cranney, I. Price, F. Rigaut, C. d’Orgeville
{"title":"Space-situational awareness adaptive optics at Mount Stromlo: data analysis of the first results","authors":"V. Korkiakoski, M. Copeland, F. Bennet, M. Lingham, D. Grosse, Jesse Cranney, I. Price, F. Rigaut, C. d’Orgeville","doi":"10.1117/12.2541330","DOIUrl":"https://doi.org/10.1117/12.2541330","url":null,"abstract":"This paper presents a preliminary analysis of the first results we have obtained from the adaptive optics systems built for EOS 1.8 m telescope at Mount Stromlo. This presentation focuses on the single-camera stereo-SCIDAR for monitoring the atmospheric seeing. We briefly summarize the system, describe its on-sky performance during commissioning, compare results to numerical simulations and evaluate the remaining challenges going into the future.","PeriodicalId":131350,"journal":{"name":"Micro + Nano Materials, Devices, and Applications","volume":"11203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130878268","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
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