Results 51 to 60 of about 25,797 (249)
Applied Sciences, 2023 Diffraction gratings are becoming a preferred option for waveguide head-mounted in–out coupling devices due to their flexible optical properties and small size and light weight.
Mianhui Weng +3 more
doaj +1 more source
Optical memory disks in optical information processing [PDF]
, 1990 We describe the use of optical memory disks as elements in optical information processing architectures. The optical disk is an optical memory devicew ith a storage capacity approaching 1010b its which is naturally suited to parallel access.
Kobayashi, Seiji +3 more
core
Measurement of Quantum Fluctuations in Geometry
, 2008 A particular form for the quantum indeterminacy of relative spacetime position of events is derived from the limits of measurement possible with Planck wavelength radiation.
Craig J. Hogan +3 more
core +1 more source
Shifting perspectives: holography and the emergence of technical communities [PDF]
, 2005 Holography, the technology of three-dimensional imaging, has repeatedly been reconceptualised by new communities. Conceived in 1947 as a means of improving electron microscopy, holography was revitalized in the early 1960s by engineer-scientists at ...
Johnston, S.F.
core +2 more sources
Advanced Materials, EarlyView.We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena +6 more
wiley +1 more source
Hybrid refractive holographic single vision spectacle lenses
Journal of the European Optical Society-Rapid Publications, 2019 In this contribution, we investigate hybrid single vision spectacle lenses (SVSLs) consisting of holographic optical elements (HOEs) embedded into a refractive lens.
Jannik M. Trapp +4 more
doaj +1 more source
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 +6 more
doaj +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 +4 more
wiley +1 more source
Techniques for writing and reading data on an optical disk which include formation of holographic optical gratings in plural locations on the optical disk [PDF]
, 2005 An optical memory for storing and/or reading data on an optical disk. The optical disk incorporates a material in which holographic gratings can be created, and subsequently detected, at plural locations within the disk by an electro-optical head ...
Liu, Tsuen-Hsi +3 more
core +1 more source
Real-time optical micro-manipulation using optimized holograms generated on the GPU
, 2010 Holographic optical tweezers allow the three dimensional, dynamic, multipoint manipulation of micron sized dielectric objects. Exploiting the massive parallel architecture of modern GPUs we can generate highly optimized holograms at video frame rate ...
Ahrenberg +22 more
core +1 more source