Optical Engineering + Applications最新文献_第2页

Thin-film PZT actuator performance in adjustable x-ray optic segments 可调x射线光学段薄膜PZT致动器性能

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2675949

Kenneth Buffo, C. DeRoo, P. Reid, V. Kradinov, Vanessa Marquez, S. Trolier-McKinstry, Nathan L. Bishop, T. N. Jackson, Quyen Tran, Hanyuan Liang, Tianning Liu, M. Tendulkar

{"title":"Thin-film PZT actuator performance in adjustable x-ray optic segments","authors":"Kenneth Buffo, C. DeRoo, P. Reid, V. Kradinov, Vanessa Marquez, S. Trolier-McKinstry, Nathan L. Bishop, T. N. Jackson, Quyen Tran, Hanyuan Liang, Tianning Liu, M. Tendulkar","doi":"10.1117/12.2675949","DOIUrl":"https://doi.org/10.1117/12.2675949","url":null,"abstract":"Many current outstanding questions in x-ray astronomy were addressed by Lynx, an observatory concept that concluded its study phase in 2019. High-effective area, high angular resolution x-ray missions like Lynx require thin (≤ 0.5 mm thick) mirrors with precise surface figures to maintain high angular resolution (≤ 0.5 arcsec). To study methods of meeting these requirements, adjustable x-ray optics have been fabricated with thin-film piezoelectric actuators to perform figure correction. These adjustable x-ray optics serve to correct low spatial frequency figure errors (⪆ 0.1 mm−1 ). The fabrication and actuator performance for an adjustable x-ray mirror that forms a conical approximation to a Wolter-I telescope are reported. This mirror has a BCB insulating layer with a top level of Ti traces to address its 288 actuator cells. The individual responses of cells are measured and on average they induce a figure change of 0.87 μm Peak-to-Valley (PV) with an associated Root Mean Square (RMS) of 0.10 μm. These measured cell responses are compared to predicted responses generated using a Finite-Element (FEA) analysis algorithm. On average the measured and predicted cell responses agree to within 0.06 μm RMS. The disagreement between predicted and measured cell responses is posited as being due to differences in radial constraints points between the FEA model and the as-built mirror mount.","PeriodicalId":434863,"journal":{"name":"Optical Engineering + Applications","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125152716","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

X-ray space technology transfer for improved mammography screening x射线空间技术转让以改进乳房x线摄影筛查

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2675991

Francesco Nardo, I. Kuvvetli, D. Ferreira, S. Massahi, F. Christensen

引用次数: 0

Advances in gas pixel detectors for x-ray polarimetry: development of the bake and fill system (BFS) x射线偏振测量用气体像素探测器的研究进展:烘烤填充系统(BFS)的发展

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2676673

L. Lucchesi, M. Minuti, A. Nuti, L. Orsini, M. Pinchera, C. Sgro’

{"title":"Advances in gas pixel detectors for x-ray polarimetry: development of the bake and fill system (BFS)","authors":"L. Lucchesi, M. Minuti, A. Nuti, L. Orsini, M. Pinchera, C. Sgro’","doi":"10.1117/12.2676673","DOIUrl":"https://doi.org/10.1117/12.2676673","url":null,"abstract":"Building on the successful launch and operation of the Imaging X-ray Polarimetry Explorer (IXPE) mission,1 the Italian National Institute for Nuclear Physics (INFN) has initiated an R&D program to develop the next generation of Gas Pixel Detectors (GPDs) for X-ray polarimetry.2 To support this effort, a Bake and Fill System (BFS) was designed, integrated, and tested. The complex BFS architecture consists of various subsystems, including gas distribution and purification, thermal control, vacuum generation, leak detection and residual gas analysis (RGA), high voltage supply, scientific data acquisition, and x-ray generation (both with passive and active sources). We also implemented remote monitoring and logging of the system status and relevant environmental data. The BFS facility was successfully used to test the detector’s sub-components, fill the GPDs with several gas mixtures at different fill pressures, and conduct functional and performance acceptance tests of the detectors even before their final sealing. The BFS’s successful implementation has demonstrated its potential to support extensive qualification campaigns of detector components, besides being a reliable production facility for flight, sealed GPDs for future space missions in X-ray polarimetry. The development and utilization of the BFS represent an important step towards the production of cutting-edge X-ray polarimeters, which have a wide range of applications in astronomy and astrophysics.","PeriodicalId":434863,"journal":{"name":"Optical Engineering + Applications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123692116","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

The arcus operations simulator: a general tool for observation planning 弧线操作模拟器:观测规划的通用工具

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2677809

A. Foster, Stephen M. Walker, Randall K. Smith

引用次数: 0

Characterization of the x-ray beam at PANTER PANTER x射线束的表征

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2677498

G. Hartner, V. Burwitz, T. Müller, S. Rukdee, T. Schmidt, A. Langmeier, K. Dennerl, N. Meidinger

{"title":"Characterization of the x-ray beam at PANTER","authors":"G. Hartner, V. Burwitz, T. Müller, S. Rukdee, T. Schmidt, A. Langmeier, K. Dennerl, N. Meidinger","doi":"10.1117/12.2677498","DOIUrl":"https://doi.org/10.1117/12.2677498","url":null,"abstract":"The PANTER x-ray test facility of Max Planck Institute for Extraterrestrial Physics is used for calibrating x-ray optics, detectors, and telescopes from Europe and around the world. The 130m x-ray beamline is composed of a long vacuum tube (Ø 1 meter) with a point-like x-ray source on one end and a large vacuum test chamber (12-meter-long, Ø 3.5 meter) on the other end. This work describes the characterization of the x-ray source's stability, including the beam's spectral, temporal, and spatial characteristics during long extensive campaigns, such as a flight module calibration. The beam’s energy spectrum and intensity are monitored continuously with a commercial Amptek Silicon-Drift-Detector (SDD) installed inside the vacuum tube at a distance of 35 meters from the x-ray source. The x-ray optic characterization is conducted by measurements with the TRoPIC pnCCD camera, a prototype of MPE’s eROSITA cameras which is located inside the large chamber. We compare the beam measured by the TRoPIC camera and SDD throughout a long observing time and discuss the correlation of the results and the method of how to derive the beam intensity at any given point in time as measured by TRoPIC. The beam characterization in terms of x-ray source stability and spectral characteristics is performed at relevant energies in the 0.1 to 11 keV range.","PeriodicalId":434863,"journal":{"name":"Optical Engineering + Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121323908","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

3D profile measurements using 2D fringe projections in the tele-centric system 在远程中心系统中使用二维条纹投影进行三维轮廓测量

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2677320

W. Su, Zhi-Hsiang Liu

引用次数: 0

Error-controlled decoding in phase unwrapping for phase-shifting projected fringe profilometry 相移投影条纹轮廓术相位展开中的误差控制解码

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2677314

W. Su, Pei-Chi Li, Sih-Yue Chen

引用次数: 0

Phase-shifting projected fringe profilometry using the pulsed phase-encoding algorithm 使用脉冲相位编码算法的相移投影条纹轮廓术

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2677321

Ching-Cherng Sun, Y. Yu, W. Su

引用次数: 0

Application of dispersion relations for prediction of frequency response of multilayer metallo-dielectric structures 色散关系在多层金属介电结构频率响应预测中的应用

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2685092

G. Chen, Hammid Al-Ghezi, P. Banerjee, M. Rumi, Lirong Sun, Peter R. Stevenson, J. Slagle

{"title":"Application of dispersion relations for prediction of frequency response of multilayer metallo-dielectric structures","authors":"G. Chen, Hammid Al-Ghezi, P. Banerjee, M. Rumi, Lirong Sun, Peter R. Stevenson, J. Slagle","doi":"10.1117/12.2685092","DOIUrl":"https://doi.org/10.1117/12.2685092","url":null,"abstract":"We show applications of our analytical approach to predict the performance of multilayer metallo-dielectric bandpass filters, which also enables estimation of their effective permittivity without relying on homogenization techniques. The approach is based on the one-dimensional dispersion relation for an infinite metallo-dielectric structure that accounts for the complex nature of the permittivities for the metal and dielectric constituents. The dispersion relation clearly reveals the band structure (often comprising multiple passbands), directly provides transmittance characteristics such as center wavelengths and bandwidths and enables the calculation of effective propagation constant and effective attenuation. In this work, we evaluate the dispersion relations for metallo-dielectric structures with complex refractive index data for the metal, viz., Ag, acquired from different sources to show the differences in the center wavelength and the cutoff wavelengths. We verify the accuracy of our method numerically by comparing the transmittance spectrum of finite metallo-dielectric structures using the transfer matrix method. We also plot the dispersion relation using Al as the metal and show the differences in the dispersion relations of the infinite structure and the transmittances of the finite structures relative to Ag. Extension to determination of dispersion relations for other polarizations, viz., transverse magnetic, is discussed, along with corresponding transmittance spectra for oblique incidence.","PeriodicalId":434863,"journal":{"name":"Optical Engineering + Applications","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124661060","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

Expanded FOV in Maxwellian-view display based on volume holographic light-guide 基于体全息光导的麦克斯韦视图显示扩展视场

Optical Engineering + Applications Pub Date : 2023-10-05 DOI: 10.1117/12.2676733

W. Lin, Wei-Chia Su, S. Zhou, Yuan-Yan Liang, Ching-Cherng Sun

{"title":"Expanded FOV in Maxwellian-view display based on volume holographic light-guide","authors":"W. Lin, Wei-Chia Su, S. Zhou, Yuan-Yan Liang, Ching-Cherng Sun","doi":"10.1117/12.2676733","DOIUrl":"https://doi.org/10.1117/12.2676733","url":null,"abstract":"We proposed a Maxwellian-view display based on Volume Holographic Optical Element (VHOE) and light-guide for see-through Head-Mounted Display (HMD) system. The diffractive light-guide is advantageous because of compact construction that leads to smaller and lighter devices. Furthermore, the advantage of VHOEs lies in their potential to achieve reducing energy loss and increasing battery endurance, owing to the higher diffraction efficiency. The Maxwellian-view display is unique because the image quality is almost not affected by the observer's focus distance or the diopter of their pupils. The proposed system utilizes a VHOE with linear grating as the in-coupling device and a VHOE with convex lens function as the out-coupling. In order to achieve a high Field of View (FOV), a prefabricated holographic lens with a high Numerical Aperture (NA) was utilized to record the out-coupling. The proposed device achieved the diagonal FOV as 50°. In this study, the detailed fabrication method of the holographic light-guide based on VOHEs was presented. Furthermore, the design method in order to improve image quality was also proposed. The optical simulation for determining image quality and optimizing was achieved based on the ray tracing method. In this case, astigmatism aberration caused by the diffractive light-guide degraded the image quality. Therefore, a cylindrical lens is necessary if the compensation of astigmatism is desired.","PeriodicalId":434863,"journal":{"name":"Optical Engineering + Applications","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121170384","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