Results 71 to 80 of about 128,668 (300)

3D Printing Strategies for Bioengineering Human Cornea

Advanced Healthcare Materials, EarlyView.
This review highlights recent progress in 3D bioprinting strategies for engineering human corneas. Key aspects include the replication of corneal transparency, curvature, and biomechanical properties, alongside innovations in recent advancements in 3D printing methods, which benefit in overcoming current challenges.
Yunong Yuan, Khoon S. Lim, Gerard Sutton, Gordon G. Wallace, Jingjing You   +4 more
wiley   +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

Neutron optical beam splitter from holographically structured nanoparticle-polymer composites

, 2010
We report a breakthrough in the search for versatile diffractive elements for cold neutrons. Nanoparticles are spatially arranged by holographical means in a photopolymer. These grating structures show remarkably efficient diffraction of cold neutrons up
C. Pruner, C. V. Raman, H. Eckerlebe, H. Kogelnik, H. Lemmel, H. Rauch, H. Rauch, I. Drevenšek Olenik, J. Klepp, J. Kohlbrecher, M. A. Ellabban, M. Bichler, M. Fally, R. A. Rupp, R. Extermann, T. Nakamura, V. F. Sears, Y. Tomita   +17 more
core   +1 more source

Holographic Whole‐Object Photopolymerization Preserving Director Alignment in Liquid Crystalline Actuators

Advanced Materials, EarlyView.
Holographic microlithography enables the fabrication of fully connected 3D liquid crystalline structures in a single exposure. The process maintains precise control over the director orientation within the entire object, preventing local director distortions typically observed in sequential printing.
Lovish Gulati, Junhee Lee, Reza Norouzikudiani, Jianfeng Li, Carlos Sánchez Somolinos, Antonio DeSimone, Kai Melde, Alexander Song, Peer Fischer   +8 more
wiley   +1 more source

Introduction to Holographic Superconductors [PDF]

, 2010
These lectures give an introduction to the theory of holographic superconductors. These are superconductors that have a dual gravitational description using gauge/gravity duality.
C.C. Homes, C.P. Herzog, C.P. Herzog, C.P. Herzog, D.T. Son, E. D’Hoker, E. Witten, F. Denef, F. London, G. Koutsoumbas, G.T. Horowitz, G.T. Horowitz, I. Amado, I.R. Klebanov, J. Bardeen, J. Sonner, J.G. Bednorz, J.P. Gauntlett, K. Maeda, K. Maeda, K. Peeters, K.K. Gomes, M. Ammon, M. Ammon, M. Heusler, M. Montull, M. Tinkham, M.M. Roberts, P. Basu, P. Breitenlohner, R. Gregory, S. Kachru, S. Weinberg, S.A. Hartnoll, S.A. Hartnoll, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, S.S. Gubser, T. Albash, T. Albash, T. Hertog, T.Y. Chen, V. Vinokur, V.L. Ginzburg, Y. Kamihara, Y. Kim   +49 more
core   +1 more source

Visual-cryptographic image hiding with holographic optical elements.

Optics Express, 2018
In this paper, we propose a visual-cryptographic image hiding method based on visual cryptography (VC) and volume grating optics. The secret image is converted to the encrypted visual keys (VKs) according to the normal VC algorithm.
N. Yang, Qiankun Gao, Yishi Shi
semanticscholar   +1 more source

Recent Advances on Thermochromic Inks for Security Applications

Advanced Materials Technologies, EarlyView.
Thermochromic security inks have garnered interest in recent years as security elements for authentication, information encryption, and anti‐counterfeiting. This review outlines different types of thermochromic materials, how they have been developed as functional inks, and how advancements in property enhancement, sustainability, and printing ...
Duarte B. Oliveira, Andreia Araújo, Elvira Fortunato, Rodrigo Martins, Marta C. Corvo, Emanuel Carlos   +5 more
wiley   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

Sub-nanometer free electrons with topological charge

, 2011
The holographic mask technique is used to create freely moving electrons with quantized angular momentum. With electron optical elements they can be focused to vortices with diameters below the nanometer range.
Hell, J., Löffler, S., Schattschneider, P., Steiger-Thirsfeld, A., Stöger-Pollach, M., Verbeeck, J.   +5 more
core   +2 more sources

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