Results 51 to 60 of about 2,006,423 (241)

New Creation Algorithm for Digitally Synthesized Holograms in Surface Model by Diffraction from Tilted Planes [PDF]

, 2002
Novel method for synthesizing light waves from objects expressed in surface model is presented for fast creation of digitally synthetic holograms. This method has a feature of coordinates rotation in Fourier domain, in which only twice FFTs and an ...
Frank Wyrowski, Hagen Schimmel, Matsushima Kyoji, 松島 恭治   +3 more
core   +2 more sources

Three-dimensional imaging using computer-generated holograms synthesized from 3-D Fourier spectra [PDF]

Journal of Physics: Conference Series, 2008
Computer-generated holograms(CGHs) synthesized from projection images of real existing objects are considered. A series of projection images are recorded both vertically and horizontally with an incoherent light source and a color CCD. According to the principles of computer tomography(CT), the 3-D Fourier spectrum is calculated from several projection
Toyohiko Yatagai, Ken-ichi Miura, Yusuke Sando, Masahide Itoh   +3 more
openaire   +1 more source

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

Advanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak, Changgyun Moon, Hyun‐Bin Yu, Sunkook Kim, Dong‐Hwan Kim   +4 more
wiley   +1 more source

Mixed‐Functionalized Acylgermanes Result in Wavelength‐Controlled Fragmentation

Angewandte Chemie, EarlyView.
Selective radical generation from PEG‐acylgermanes is achieved by controlling the used wavelength. Distinct aryl‐carbonyl units undergo wavelength‐dependent α‐cleavage, producing radicals with different reactivities. UV/Vis, TD‐DFT, and photo‐CIDNP spectroscopy confirm that small adjustments in light input directly dictate radical identity and ...
André Culum, Manfred Drusgala, Roland C. Fischer, Anne‐Marie Kelterer, Mario Leypold, Dmytro Neshchadin, Michael Haas   +6 more
wiley   +2 more sources

Rethinking Extracellular Vesicle Signaling

Advanced Materials, EarlyView.
Extracellular vesicles enable cell communication beyond intracellular cargo delivery. This perspective highlights two plausible surface‐based signaling modes: “bind‐and‐stay” and “bind‐and‐leave.” Transient binding to multiple cells challenges the one‐vesicle‐one‐cell model.
Wojciech Chrzanowski, Joy Wolfram
wiley   +1 more source

Improving resolution in two orthogonal orientations from a single-shot digital holographic microscopy

Results in Optics
We demonstrate a single-shot digital holographic microscopy technique to improve the diffraction-limited resolution in two orthogonal orientations simultaneously by dual-channel orthogonal polarization multiplexing approach.
Krishnendu Samanta, Anupriya Tiwari, Samsheerali P.T., Joby Joseph   +3 more
doaj   +1 more source

Multicascade-linked synthetic wavelength digital holography using an optical-comb-referenced frequency synthesizer [PDF]

, 2018
Digital holography (DH) is a promising method for non-contact surface topography because the reconstructed phase image can visualize the nanometer unevenness in a sample.
ABRAHAM, Emmanuel, IBRAHIM, Dahi Ghareab Abdelsalam, IWATA, Tetsuo, KAWAHITO, Yusuke, MINAMIKAWA, Takeo, MINOSHIMA, Kaoru, MIZUNO, Takahiko, MIZUTANI, Yasuhiro, OE, Ryo, OGAWA, Takayuki, SHIBUYA, Kyuki, TROVATO, Clément, YAMAGIWA, Masatomo, YAMAMOTO, Hirotsugu, YASUI, Takeshi   +14 more
core   +2 more sources

Vat Polymerization 3D Printing for Controlled Drug Release Applications

Advanced Materials Technologies, EarlyView.
ABSTRACT Vat polymerization (VP) 3D printing, a light‐based additive manufacturing technique, has emerged as a promising technique for fabricating complex drug delivery systems with high precision and spatial resolution. This layer‐by‐layer manufacturing process enables the creation of intricate geometries and customizable architectures, which are ...
Hafiz Busari, O. Thompson Mefford, M. Aaron Vaughn   +2 more
wiley   +1 more source

Using the Discrete Dipole Approximation and Holographic Microscopy to Measure Rotational Dynamics of Non-spherical Colloidal Particles

, 2015
We present a new, high-speed technique to track the three-dimensional translation and rotation of non-spherical colloidal particles. We capture digital holograms of micrometer-scale silica rods and sub-micrometer-scale Janus particles freely diffusing in
Chaudhary, Kundan, Dimiduk, Thomas G., Fung, Jerome, Kretzschmar, Ilona, Manoharan, Vinothan N., Razavi, Sepideh, Wang, Anna   +6 more
core   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

Advanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source