Results 141 to 150 of about 27,513 (349)

Responsive Phase Gradient Metasurface for Laser Stealth and Dynamic Thermal Camouflage

Laser &Photonics Reviews, EarlyView.
The graphical abstract depicts a phase‐gradient metasurface enabling directional scattering and emissivity‐controlled thermal radiation. The engineered phase profile redistributes the reflected optical momentum, suppressing specular reflection and generating non‐specular scattering.
Zhihao Yuan, Yanlei Liu, Kun Yu, Han Dai, Tianxu Jia, Zhiying Chen, Junsuk Rho, Yufang Liu   +7 more
wiley   +1 more source

Interpolation-Filtering Method for Image Improvement in Digital Holography

Applied Sciences
Digital holography is actively used for the characterization of objects and 3D-scenes, tracking changes in medium parameters, 3D shape reconstruction, detection of micro-object positions, etc.
Alexander V. Kozlov, Pavel A. Cheremkhin, Andrey S. Svistunov, Vladislav G. Rodin, Rostislav S. Starikov, Nikolay N. Evtikhiev   +5 more
doaj   +1 more source

Sympathetic quantisation - A new approach to hologram quantisation [PDF]

, 2020
Peter J. Christopher, Ralf Mouthaan, Amr Soliman, Timothy D. Wilkinson   +3 more
openalex   +1 more source

Holographic Optical Elements Based on Edge-lit Holograms

, 2014
[[abstract]]A holographic optical element (HOE) simultaneously accompanied with light guiding and beam shaping function is implemented with edge-lit holograms in this study.
Su, Wei-Chia; Tsai, Ming-Hsun; Lin, Hiu-Tzu
core  

Multiplexing holograms in LiNbO3 : Fe : Mn crystals [PDF]

Persistent holograms are recorded with red light in lithium niobate crystals doped with manganese and iron. Different erasure mechanisms are investigated, and a recording schedule for multiplexing holograms with equal diffraction efficiencies is proposed.
Psaltis, D., Adibi, A., Buse, K.
core   +1 more source

Wavelength and Full‐Polarization Encrypted Orbital Angular Momentum Meta‐Holography

Laser &Photonics Reviews, EarlyView.
By multiplexing three independent degrees of freedom of light, a single‐layer geometric‐phase metasurface encrypts 24 distinct holographic images across 3 wavelengths, 12 pairs of orthogonal polarizations, and 4 OAM channels, taking advantage of axial chromatic dispersion to reconstruct the color images at the same plane. ABSTRACT Multiplexing multiple
Yue Han, Mingna Xun, Yuqing He, Sheng Ye, Weiping Wan, Yan Li   +5 more
wiley   +1 more source

Diffraction engineering of multimode waveguides using computer-generated planar holograms

, 2009
Shuo‐Yen Tseng
openalex   +1 more source

Dark holograms and gravitational waves

, 2021
Francesco Bigazzi, Alessio Caddeo, Aldo L. Cotrone, Angel Paredes   +3 more
openalex   +1 more source

Crosstalk noise from multiple thick-phase holograms

, 1977
The crosstalk noise between holograms arising from multiple storage of holograms in the same volume is determined. The noise is measured to be oscillatory with a period greater than that predicted by the theory and to be intermediate in magnitude between
Sheng, Ping, W. J. Burke, Burke, W. J., Ping Sheng   +3 more
core   +1 more source

Metasurface‐Based Polarization‐Controlled Generation of 128‐Dimensional Vector Vortex Combs

Laser &Photonics Reviews, EarlyView.
The generation and continuous control of 128‐dimensional vector vortex combs using a single metasurface is reported. This work creates a class of structured light that uniquely integrates ultrahigh dimensionality with vector properties, and represents a crucial step toward on‐chip, reconfigurable generators for ultrahigh‐dimensional vector structured ...
Jiaqi Wang, Wenxi Wang, Wen Chen
wiley   +1 more source