Results 51 to 60 of about 5,837,988 (197)

See-through display based on commercial photopolymer: Optimization and shrinkage effects

Heliyon, 2023
Nowadays augmented reality, 3D Image, mixed reality and see-through applications are very attractive technologies due to their great potential. Holographic optical elements can provide interesting solutions for injection and extraction of the image in ...
Joan Josep Sirvent-Verdú, Juan Carlos Bravo, Jaume Colomina-Martínez, Cristian Neipp, Daniel Puerto, Andrés Márquez, Sergi Gallego   +6 more
doaj   +1 more source

Electrically Tunable Graphene‐Metal Hybrid Metasurfaces for High‐Efficiency, Broadband Mid‐Infrared Transmission Modulation

Advanced Science, EarlyView.
A graphene‐metal hybrid transmissive metasurface enables electrically tunable mid‐infrared transmission modulation through ionic gel top gating. By combining graphene with a metallic slit metasurface, high modulation efficiency and broadband operation are achieved simultaneously, demonstrating efficient electrical control of mid‐infrared transmission ...
Heonhak Ha, Jinseok Kong, Junhyung Kim, Jiwon Kang, Min Seok Jang   +4 more
wiley   +1 more source

Quantitative label-free cell imaging by means of digital holographic miscroscopy: a roadmap for a complete characterization of biological samples [PDF]

, 2011
The research activity, performed at the institute for Microelectronic and Microsystems, has been devoted to the study and the development of non-destructive optical techniques for morphological analysis of biological samples.
Di Caprio, Giuseppe
core   +1 more source

Sequential and non-sequential simulation of volume holographic gratings

Journal of the European Optical Society-Rapid Publications, 2018
Background In the development process of holographic displays like holographic Head-Mounted Displays (hHMD) the simulation of the complete optical system is strongly required.
Moritz Kick, Reinhold Fieß, Wilhelm Stork   +2 more
doaj   +1 more source

Passive Metasurface Tweezers for Multi‐Scale Orbital Transport and Trapping on Elastic Plates

Advanced Science, EarlyView.
Passive labyrinthine phase encoding converts single‐channel excitation into localized flexural‐wave vortices with programmable orbital angular momentum. The resulting vortex fields enable cross‐scale particle manipulation, including orbital transport, central confinement, and rotational actuation.
Zeyang Bi, Zhiqiang Li, Yunkang Ren, Yugui Peng, Xuefeng Zhu, Liuxian Zhao, Jun Yang, Chuanxing Bi   +7 more
wiley   +1 more source

Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton

Advanced Science, EarlyView.
Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Yuxing Li, Yanmin Zhu, Jingyan Chen, Rongzhou Chen, Yuen‐Wa Ho, Chutian Wang, James Kar‐Hei Fang, Kevin K. Tsia, Edmund Y. Lam   +8 more
wiley   +1 more source

Aberration‐Corrected Holographic Optical Elements Based on Consistent Shapes of Printed Hogels

Advanced Photonics Research
Herein, a holographic optical element (HOE) printing technique which maintains shapes and sizes of hogels across diverse focal positions, and aberration‐corrected HOEs which are fabricated by it are proposed. The proposed HOE printer employs nonpixelated
Jiwoon Yeom, Jung Beom Choi, Geun Seop Choi, Kwang‐Soon Choi, Jisoo Hong   +4 more
doaj   +1 more source

Orbital Angular Momentum generation in infrared with Holographic Optical Elements [PDF]

EPJ Web of Conferences
Optical vortices are of interest in the infrared range for applications in the fields of optical fiber communications and femtosecond laser pulses. Among the current techniques used to generate optical vortices, the use of a Spatial Light Modulator (SLM)
Marín-Sáez Julia, Sevilla Marina, Paredes Álvaro, Collados Victoria, Atencia Jesús   +4 more
doaj   +1 more source

Holographic Optical Elements Based on Edge-lit Holograms [PDF]

, 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  

Recent Advances in High‐Entropy Nanozymes: From Fabrication to Applications

Advanced Science, EarlyView.
To highlight key achievements and clarify the current landscape of high‐entropy nanozymes (HEAzymes), this review summarizes state‐of‐the‐art developments ranging from thermodynamically and kinetically controlled synthetic strategies; enzyme‐like catalytic types, catalytic characteristics, and underlying mechanisms; to their antioxidative, therapeutic,
Yongjian Ai, Weibo Zhang, Pengjie Wang, Wentao Xu, Huiyuan Guo, Hong‐bin Sun, Meng‐Qi He, Fazheng Ren, Qionglin Liang   +8 more
wiley   +1 more source