Results 81 to 90 of about 32,600 (191)

Radial canonical AdS3 gravity and T T ¯ $$ T\overline{T} $$

Journal of High Energy Physics
We employ an ADM deparametrization strategy to discuss the radial canonical formalism of asymptotically AdS3 gravity. It leads to the identification of a radial ‘time’ before quantization, which is the volume time, canonically conjugate to York time ...
Matthew J. Blacker, Nele Callebaut, Blanca Hergueta, Sirui Ning   +3 more
doaj   +1 more source

HoloCam: A subsea holographic camera for recording marine organisms and particles [PDF]

, 2000
The HoloCam system is a major component of a multi-national multi-discipline project known as HoloMar (funded by the European Commission under the MAST III initiative).
Alexander, S, Anderson, S, Craig, G, Hendry, DC, Hobson, PR, Lampitt, RS, Lucas-Leclin, B, Nareid, H, Nebrensky, JJ, Player, MA, Saw, K, Tipping, K, Watson, J   +12 more
core  

Quantum complexity of T T ¯ $$ T\overline{T} $$ -deformation and its implications

Journal of High Energy Physics
We employ holography to calculate the quantum complexity of T T ¯ $$ T\overline{T} $$ -deformation, utilizing the complexity equals volume (CV) and the complexity equals action (CA) proposals within the bulk spacetime with a finite radius cutoff. We find
Amin Faraji Astaneh
doaj   +1 more source

Characterization of Volume Gratings Based on Distributed Dielectric Constant Model Using Mueller Matrix Ellipsometry

Applied Sciences, 2019
Volume grating is a key optical component due to its comprehensive applications. Other than the common grating structures, volume grating is essentially a predesigned refractive index distribution recorded in materials, which raises the challenges of ...
Hao Jiang, Zhao Ma, Honggang Gu, Xiuguo Chen, Shiyuan Liu   +4 more
doaj   +1 more source

The development and sea trials of a subsea holographic camera for large volume in-situ recording of marine organisms [PDF]

, 2002
We describe the development, construction and sea testing of an underwater holographic camera (HoloCam) for in situ recording of marine organisms and particles in large volumes of sea water. HoloCam comprises a laser, power supply, holographic recording
Alexander, S, Craig, G, Hendry, DC, Hobson, PR, Lampitt, RS, Marteau, JM, Nareid, H, Nebrensky, JJ, Player, MA, Saw, K, Tipping, K, Watson, J   +11 more
core  

Full-volume aberration-space holography

Simultaneous, diffraction-limited control of multiple optical beams is crucial for applications ranging from lithography to optogenetics, deep tissue imaging, and tweezer-based manipulation of cells, particles, or atoms. Despite the desire to address wider fields of view, deeper volumes, and increasingly-disordered media, spatially-varying aberrations ...
Christen, Ian, Panuski, Christopher, Propson, Thomas, Englund, Dirk   +3 more
openaire   +2 more sources

Wavefront-based holographic lens optical power model for augmented reality applications

Results in Physics
The use of holographic optical elements (HOEs) has grown significantly in recent years, particularly in augmented reality (AR) and see-through display systems. Among them, holographic lenses (HLs) have attracted special interest due to their versatility,
Tomás Lloret, Marta Morales-Vidal, José Carlos García-Vázquez, Belén Nieto-Rodríguez, Inmaculada Pascual   +4 more
doaj   +1 more source

Contact lens holographic projection display based on curved volume-holographic optical element

ETRI Journal
Wearable devices for augmented reality (AR) have gained considerable atten-tion but research on contact lenses remains scarce. This study introduces an AR display that utilizes a contact lens integrated with a holographic projection display and a curved ...
Jin Su Lee
doaj   +1 more source

Wedge holographic complexity in Karch-Randall braneworld

Journal of High Energy Physics
We investigate holographic complexities in the context of wedge holography, focusing specifically on black string geometry in AdS3. The wedge spacetime is bounded by two end-of-the-world (EOW) branes with intrinsic Dvali-Gabadadze-Porrati (DGP) gravity ...
Yichao Fu, Keun-Young Kim
doaj   +1 more source

Imaging Photonic Resonances within an All‐Dielectric Metasurface via Photoelectron Emission Microscopy

Advanced Photonics Research
Dielectric metasurfaces, through volume‐type photonic resonances, enable precise control of light‐matter interactions for applications including imaging, holography, and sensing. The application space of dielectric metasurfaces has extended from infrared
Andrew R. Kim, Chloe F. Doiron, Fernando J. Vega, Jaeyeon Yu, Alex M. Boehm, Joseph P. Klesko, Igal Brener, Raktim Sarma, Alexander Cerjan, Taisuke Ohta   +9 more
doaj   +1 more source