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Orientation dependence in high harmonics of ZnO with polarization corrections to counteract the birefringent effect

Chinese Physics B 2021年第7期30卷 269-273页

作者： Yin-Fu Zhang Teng-Fei Huang Jia-Peng Li Ke Yang Liang Li Xiao-Song Zhu Peng-Fei Lan Pei-Xiang Lu School of Physics and Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Hubei Key Laboratory of Optical Information and Pattern Recognition Wuhan Institute of TechnologyWuhan 430205China CAS Center for Excellence in Ultraintense Laser Science Shanghai 201800China

We investigate the influence of the birefringence on the high-order harmonics in an a-cut Zn O crystal with midinfrared laser *** high harmonics exhibit strong dependence on the alignment of the crystal with respect to the laser *** introduce the jones calculus to counteract the birefringent effect and obtain the harmonics with polarization corrections in Zn *** show that the birefringent effect plays an important role in the orientation dependence of HHG.

关键词： high-order harmonics birefringent effect jones calculus

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Geometric and physical configurations of meta-atoms for advanced metasurface holography

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InfoMat 2021年第7期3卷 739-754页

作者： Joohoon Kim Younghwan Yang Trevon Badloe Inki Kim Gwanho Yoon Junsuk Rho Department of Mechanical Engineering Pohang University of Science and TechnologyPohangSouth Korea Department of Manufacturing Systems and Design Engineering Seoul National University of Science and TechnologySeoulSouth Korea Department of Chemical Engineering Pohang University of Science and TechnologyPohangSouth Korea

Metasurfaces consisting of subwavelength structures,so-called meta-atoms,have steadily attracted considerable attention for advanced holography due to their advantages in terms of high-resolution holographic images,large field of view,and compact device *** contrast to conventional holographic displays using bulky conventional diffractive optical elements,metasurface holography enables arbitrary complex wavefront shaping with a much smaller *** this review,we classify metasurface holography according to the meta-atom design methodologies,which can further expand hologram *** describe light-matter interactions,particularly in metasurface systems,using the relevant the jones matrix to rigorously explain modulations of the amplitude,phase,and polarization of *** different types of metaatoms are presented,and the corresponding achievable wavefronts that form the holographic images in the far-field are also *** a simple classification will give a straightforward approach to design and further realize advanced metasurface holographic devices.

关键词： jones calculus meta-atom metahologram metamaterial metasurface

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Quantifying the refractive index dispersion of a pigmented biological tissue using Jamin–Lebedeff interference microscopy

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Light(Science & Applications) 2013年第1期2卷 58-63页

作者： Doekele G Stavenga Hein L Leertouwer Bodo D Wilts Computational Physics Zernike Institute for Advanced MaterialsUniversity of GroningenNL-9747 AG GroningenThe Netherlands

Jamin–Lebedeff polarizing interference microscopy is a classical method for determining the refractive index and thickness of transparent ***,we extend the application of this method to pigmented,absorbing biological tissues,based on a theoretical derivation using jones *** novel method is applied to the wings of the American Rubyspot damselfly,Hetaerina *** membranes in the red-colored parts of the damselfly’s wings,with a thickness of 2.5 μm,contain a pigment with maximal absorption at 490 nm and a peak absorbance coefficient of 0.7 μm^(-1).The high pigment density causes a considerable and anomalous dispersion of the refractive *** result can be quantitatively understood from the pigment absorbance spectrum by applying the Kramers–Kronig dispersion *** of the spectral dependence of the refractive index and the absorption are valuable for gaining quantitative insight into how the material properties of animal tissues influence coloration.

关键词： absorption chitin insect wings jones calculus Kramers–Kronig relations

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