Results 71 to 80 of about 5,929,903 (194)

Dual-mode varifocal Moiré metalens for quantitative phase and edge-enhanced imaging

Nanophotonics
Transport-of-intensity equation (TIE) as a noninterference method for quantitative phase imaging (QPI) has broad applications in micrographic imaging and optical metrology.
Lian Yi, Liu Yongqi, Cheng Dewen, Chi Cheng, Bao Yanjun, Wang Yongtian   +5 more
doaj   +1 more source

Optimized fringe removal algorithm for absorption images

, 2018
Optical absorption imaging is a basic detection technique for obtaining information from matter waves, in which the absorption signal can be obtained by comparing the recorded detection light field with the light field in the presence of absorption ...
Chen, Xuzong, Guo, Xinxin, Liu, W. M., Niu, Linxiao, Zhan, Yuan, Zhou, Xiaoji   +5 more
core   +1 more source

Space-time geometry of quantum dielectrics

, 2000
Light experiences dielectric matter as an effective gravitational field and matter experiences light as a form of gravity as well. Light and matter waves see each other as dual space-time metrics, thus establishing a unique model in field theory.
Leonhardt, Ulf
core   +2 more sources

Dynamic optical chirality based on liquid-crystal-embedded nano-cilia photonic structures

Nature Communications
Compared to natural chiral molecules, artificial chiral photonic structures offer stronger chiroptical responses. However, the remarkable optical properties of most chiral structures are fixed upon fabrication, limiting their applications in scenarios ...
Sufan Li, Yiheng Zhang, Yang Wang, Guiyuan Cao, Qinghua Liang, Xiaochen Zhang, Haozhe Sun, Yongyue Zhang, Zhiyu Wang, Xing Liu, Peng Chen, Han Lin, Baohua Jia, Yan-Qing Lu, Jiafang Li   +14 more
doaj   +1 more source

Emission Patterns and Light Curves of Gamma-Rays in the Pulsar Magnetosphere with a Current-Induced Magnetic Field

, 2011
We study the emission patterns and light curves of gamma-rays in the pulsar magnetosphere with a current-induced magnetic field perturbation. Based on the solution of a static dipole with the magnetic field induced by some currents (perturbation field ...
Abdo, Abdo, Bai, Bai, Cheng, Deutsch, Dyks, Dyks, Fang, Harding, Harding, Hirotani, L. Zhang, Li, Muslimov, Romani, Takata, Tang, Watters, X. Li, Zhang, Zhang, Zhang, Zhang   +23 more
core   +1 more source

On Possible Light-Torsion Mixing in Background Magnetic Field

, 2009
The interaction of the light with propagating axial torsion fields in the presence of an external magnetic field has been investigated. Axial torsion fields appearing in higher derivative quantum gravity possess two states, with spin one and zero, with ...
A.S. Belyaev, A.S. Belyaev, A.S. Belyaev, A.V. Minkevich, C. Lammerzahl, C.H. Oh, D. Colladay, F.W. Hehl, F.W. Hehl, G. Berredo-Peixoto de, G. German, G. Raffelt, I.L. Buchbinder, I.L. Shapiro, J. Polchinski, K.S. Stelle, L. Fabbri, L. Maiani, S. I. Kruglov, S.I. Kruglov, S.I. Kruglov, S.I. Kruglov, S.I. Kruglov, V. Mukhanov, V.A. Kostelecký   +24 more
core   +1 more source

Light field duality

Proceedings of the ACM symposium on Virtual reality software and technology - VRST '02, 2002
We propose to look at light fields from a dual space point of view. The advantage, in addition to revealing some new insights, is a framework that combines the benefits of many existing works. Using the well known two-plane-parameterization, we derive the duality between the 4-D light field and the 3-D world space.
Chen, George, Hofsetz, Christian, Liu, Yang, Max, Nelson, Ng, Kim, Hong, Li, McGuinness, Peter   +6 more
openaire   +2 more sources

Silicon nano-kirigami with controlled plastic, elastic and hysteretic deformations

Nature Communications
Nano-kirigami, inspired by the art of paper cutting and folding, offers a promising approach to three-dimensional (3D) nanomanufacturing by simply transforming two-dimensional (2D) precursors into complex 3D architectures. Here we report a profound study
Qinghua Liang, Zhiguang Liu, Yu Han, Shang Chen, Haozhe Sun, Yingying Chen, Yongyue Zhang, Meihua Niu, Chongrui Li, Yang Wang, Ke Jin, Yongtian Wang, Yugui Yao, Juan Liu, Jiafang Li   +14 more
doaj   +1 more source

Stretchable plasmonic metasurfaces for deformation monitoring

Nanophotonics
Metasurfaces have recently gained significant attention due to the strong capacity in light field manipulation. However, most traditional metasurfaces are fabricated on rigid substrates, which fix their functionality after fabrication and limit their ...
Li Peiyang, Gao Kaikai, Ma Ruize, Pan Kai, Li Dong, Liu Feng, Li Peng, Gan Xuetao, Zhao Jianlin, Wen Dandan   +9 more
doaj   +1 more source

Tip-enhanced Raman scattering of glucose molecules

Opto-Electronic Science
Glucose molecules are of great significance being one of the most important molecules in metabolic chain. However, due to the small Raman scattering cross-section and weak/non-adsorption on bare metals, accurately obtaining their "fingerprint information"
Zhonglin Xie, Chao Meng, Donghua Yue, Lei Xu, Ting Mei, Wending Zhang   +5 more
doaj   +1 more source