Results 81 to 90 of about 17,183 (278)

Exploring de Sitter Space and Holography [PDF]

, 2002
We explore aspects of the physics of de Sitter (dS) space that are relevant to holography with a positive cosmological constant. First we display a nonlocal map that commutes with the de Sitter isometries, transforms the bulk-boundary propagator and ...
Allen, Allen, Bal, Balasubramanian, Balasubramanian, Balasubramanian, Balasubramanian, Balasubramanian, Balasubramanian, Balasubramanian, Banados, Bautier, Bekenstein, Berglund, Bos, Boschi-Filho, Bousso, Bousso, Bousso, Breitenlohner, Brown, Brown, Bunch, Burges, Cai, Candelas, Carlip, Chernikov, Coussaert, Danielsson, de Boer, de Haro, Deo, Deser, Djordje Minic, Dowker, Elitzur, Fefferman, Figari, Gaberdiel, Gates, Gates, Gelfand, Ghezelbash, Gibbons, Gibbons, Gibbons, Giddings, Govindarajan, Gubser, Gunaydin, Gunaydin, Gutperle, Hawking, Helgason, Henningson, Howe, Hull, Hull, Hull, Hull, Hull, Hull, Hull, Hull, Hull, Jan de Boer, Janik, Kallosh, Klemm, Kristjansson, Kruczenski, Laflamme, Lapedes, Larsen, Leblond, Lin, Liu, Lohya, Maldacena, Maldacena, Maldacena, Maximo Banados, Mazur, Mottola, Mottola, Mu-In Park, Naimark, Nicolai, Nojiri, Nojiri, Per Kraus, Pernici, Pilch, Ratra, Rooman, Schomblond, Schrodinger, Sen, Simon, Skenderis, Skenderis, Spradlin, Strominger, Strominger, Susskind, Tagirov, Teschner, Vijay Balasubramanian, Witten, Witten, Witten, Witten, ’tHooft   +113 more
core   +5 more sources

3D holographic head mounted display using holographic optical elements with astigmatism aberration compensation

Optics Express, 2015
We propose a bar-type three-dimensional holographic head mounted display using two holographic optical elements. Conventional stereoscopic head mounted displays may suffer from eye fatigue because the images presented to each eye are two-dimensional ones, which causes mismatch between the accommodation and vergence responses of the eye.
Yeom, Han-Ju, Kim, Hee-Jae, Kim, Seong-Bok, Zhang, HuiJun, Li, BoNi, Ji, Yeong-Min, Kim, Sang-Hoo, Park, Jae-Hyeung   +7 more
openaire   +3 more sources

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

Fast 3D Content Update for Wide-Angle Holographic Near-Eye Display

Applied Sciences, 2021
Near-eye holographic displays are the holy grail of wear-on 3D display devices because they are intended to project realistic wide-angle virtual scenes with parameters matching human vision.
Rafał Kukołowicz, Maksymilian Chlipala, Juan Martinez-Carranza, Moncy Sajeev Idicula, Tomasz Kozacki   +4 more
doaj   +1 more source

Phototunable Polarization Volume Gratings Driven by Chiral Hydrazone Switches

Advanced Optical Materials, EarlyView.
Chiral hydrazone photoswitches incorporated into polarization volume gratings enable light‐driven, reversible modulation of optical properties. UV and blue light irradiation reversibly alter the hydrazone isomer ratio, leading to tunable diffraction efficiency and spectral response across the visible spectrum.
Artem Boichuk, Lauri Uosukainen, Indu Bala, Ivan Aprahamian, Arri Priimagi   +4 more
wiley   +1 more source

Conversion of 2D picture to color 3D holography using end-to-end convolutional neural network

PhotoniX
In the field of holographic 3D display, generating a three-dimensional (3D) computer-generated hologram (CGH) from a single two-dimensional (2D) image has been a significant challenge due to the high-dimensionality of the problem.
Chenliang Chang, Chenzhou Zhao, Bo Dai, Qi Wang, Jun Xia, Songlin Zhuang, Dawei Zhang   +6 more
doaj   +1 more source

Holographic aberration correction: optimising the stiffness of an optical trap deep in the sample [PDF]

, 2011
We investigate the effects of 1st order spherical aberration and defocus upon the stiffness of an optical trap tens of μm into the sample. We control both these aberrations with a spatial light modulator. The key to maintain optimum trap stiffness over a
Bowman, Bowman, Cižmár, Curtis, Gibson, Graham Gibson, Huang, Jesacher, Ke, Maria Dienerowitz, Miles Padgett, Padgett, Reicherter, Reihani, Reihani, Richard Bowman, Rohrbach, Sheppard, Sheppard, Sinclair, Theofanidou, Vellekoop, Wulff   +22 more
core   +1 more source

Digital Holographic Capture and Optoelectronic Reconstruction for 3D Displays [PDF]

International Journal of Digital Multimedia Broadcasting, 2010
The application of digital holography as a viable solution to 3D capture and display technology is examined. A review of the current state of the field is presented in which some of the major challenges involved in a digital holographic solution are highlighted.
Kelly, Damien P., Monaghan, David S., Pandey, Nitesh, Kozacki, Tomasz, Michalkiewicz, Aneta, Finke, Grzegorz, Hennelly, Bryan M., Kujawinska, Malgorzata   +7 more
openaire   +3 more sources

Harnessing Ultrafast Optical Pulses for 3D Microfabrication by Selective Tweezing and Immobilization of Colloidal Particles in an Integrated System

Advanced Photonics Research, Volume 6, Issue 5, May 2025.
Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna, Jieliyue Sun, Wenyu Liu, Robert H. Hurt, Kimani C. Toussaint Jr.   +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