Journal ArticleDOI
Video-rate full-Stokes imaging polarimeter using two polarization cameras
TLDR
In this paper, the authors construct and calibrate a full-Stokes imaging polarimeter system by combining the video data from two separate polarization cameras with a nonpolarizing beamsplitter and a waveplate.Abstract:
We show how to construct and calibrate a full-Stokes imaging polarimeter system by combining the video data from two separate polarization cameras with a nonpolarizing beamsplitter and a waveplate. As a result, this system can capture the full Stokes vector at each pixel for 3 megapixel images at up to 60 Hz. To demonstrate some of the advantages of measuring the s 3 Stokes vector component that is normally not measured in polarization cameras, we show three experiments: viewing three-dimensional glasses, detecting a scarab beetle in a natural environment via the circular dichroism of its shell, and mixing an optically active liquid with a neutral liquid.read more
Citations
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Small-sized long wavelength infrared absorber with perfect ultra-broadband absorptivity.
Yu Zhou,Zhongzhu Liang,Zheng Qin,Enzhu Hou,Xiaoyan Shi,Yuhao Zhang,Ying Xiong,Yinhui Tang,Yandong Fan,Fuming Yang,Jingqiu Liang,Changhong Chen,Jianjun Lai +12 more
TL;DR: Two types of ultra-broadband long wavelength infrared (LWIR) absorbers with small period and super thin thickness are designed and the proposed absorber is polarization-independent and possesses a good tolerance of incident angle.
Journal ArticleDOI
Survey on research and development of on-orbit active debris removal methods
TL;DR: The latest research results are classified and summarized in detail from two aspects of space debris capture and removal, using a cobweb evaluation model based on six indicators.
Journal ArticleDOI
SuperCam Calibration Targets: Design and Development.
Jose Antonio Manrique,Guillermo Lopez-Reyes,Agnes Cousin,Fernando Rull,Sylvestre Maurice,Roger C. Wiens,Morten Madsen,Juan Manuel Madariaga,Olivier Gasnault,J. Aramendia,Gorka Arana,Pierre Beck,Sylvain Bernard,P. Bernardi,M. H. Bernt,Alicia Berrocal,Olivier Beyssac,Ph. Cais,C. Castro,Kepa Castro,Samuel M. Clegg,Edward A. Cloutis,Gilles Dromart,C. Drouet,Bruno Dubois,David Escribano,Cécile Fabre,A. Fernandez,Olivier Forni,V. Garcia-Baonza,I. Gontijo,Jeffrey R. Johnson,J. Javier Laserna,Jérémie Lasue,Soren N. Madsen,Eva Mateo-Martí,Jesús Medina,P.-Y. Meslin,G. Montagnac,Andoni Moral,J. Moros,Ann Ollila,C. Ortega,Olga Prieto-Ballesteros,J. M. Reess,S. Robinson,Jose A. Rodriguez,Jesus Saiz,J. A. Sanz-Arranz,I. Sard,V. Sautter,Pablo Sobron,M. Toplis,Marco Veneranda +53 more
TL;DR: The design, development, integration, verification and functional testing of the SuperCam Calibration Target (SCCT), a co-aligned combination of Laser-Induced Breakdown Spectroscopy, Time-Resolved Raman and Luminescence, Visible and Infrared Spectroscope, together with sound recording and high-magnification imaging techniques, is summarized.
Journal ArticleDOI
Laser Interference Lithography for Fabrication of Planar Scale Gratings for Optical Metrology
TL;DR: In this article, the concept of patterning of the two-dimensional orthogonal pattern structure at a single exposure has been extended to the non-orthogonal two-axis Lloyd's mirror interferometer, which has been optimized for the fabrication of a large-area scale grating.
Journal ArticleDOI
Bessel terahertz imaging with enhanced contrast realized by silicon multi-phase diffractive optics.
Linas Minkevičius,Domas Jokubauskis,Irmantas Kašalynas,Sergej Orlov,Antanas Urbas,Gintaras Valušis +5 more
TL;DR: A proposed Bessel zone plate (BZP) design - discrete axicon containing 4 phase quantization levels - based on high-resistivity silicon and produced by laser ablation technology allowed to extend the focal depth up to 20 mm with minimal optical losses and refuse employment of bulky parabolic mirrors in the imaging setup.
References
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Efficient subpixel image registration algorithms
TL;DR: Three new algorithms for 2D translation image registration to within a small fraction of a pixel that use nonlinear optimization and matrix-multiply discrete Fourier transforms are compared to evaluate a translation-invariant error metric.
Journal ArticleDOI
CCD polarization imaging sensor with aluminum nanowire optical filters
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LXI. On metallic colouring in birds and insects
TL;DR: The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science: Vol. 21, No. 124, pp. 554-567 as discussed by the authors was the first publication of the LXI.
Journal ArticleDOI
Experimental demonstration of parallel two-step phase-shifting digital holography.
Tatsuki Tahara,Kenichi Ito,Motofumi Fujii,Takashi Kakue,Yuki Shimozato,Yasuhiro Awatsuji,Kenzo Nishio,Shogo Ura,Toshihiro Kubota,Osamu Matoba +9 more
TL;DR: In the experiment, the unwanted images, the zero-order diffraction wave and the conjugate image, are removed from the reconstructed image of objects by the system, while the images superimpose on the image of Objects reconstructed by Fresnel transform alone.
Journal ArticleDOI
Dynamic quantitative phase imaging for biological objects using a pixelated phase mask
TL;DR: Research in developing a dynamic quantitative phase imaging microscope providing instantaneous measurements of dynamic motions within and among live cells without labels or contrast agents is described.