Results 51 to 60 of about 27,513 (349)

Highly Anisotropic Quasi‐Direct Organic Metal Halide Hybrids: A Platform for Polarization‐Sensitive Optoelectronics

open access: yesAdvanced Materials Technologies, EarlyView.
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee   +7 more
wiley   +1 more source

Binary amplitude holograms for shaping complex light fields with digital micromirror devices

open access: yesJPhys Photonics
Digital micromirror devices are a popular type of spatial light modulators for wavefront shaping applications. While they offer several advantages when compared to liquid crystal modulators, such as polarization insensitivity and rapid-switching, they ...
R Gutiérrez-Cuevas, S M Popoff
doaj   +1 more source

Revealing the Transmission Hologram's Refractive Index Profile Stored in a Photohydrogel: A Structural Characterization

open access: yesAdvanced Optical Materials, EarlyView.
A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez   +4 more
wiley   +1 more source

Obtención de una placa fotosensible como material de registro holográfico

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2000
In this article was showed the procedure of obtaining and depositing of photosensitive dry films uses as holographic recording materials. We compare the thickness and the uniformity of plates obtained with two different depositing method, with a manual ...
García, C., Pascual, I., Fimia, A.
doaj  

Continuous Depth Control of Phase-Only Hologram With Depth Embedding Block

open access: yesIEEE Photonics Journal, 2022
Digital holography is a promising candidate for advanced display, although several obstacles remain, such as the problem of heavy time consumption in the generation of phase-only holograms.
Won Jong Ryu, Jin Su Lee, Yong Hyub Won
doaj   +1 more source

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

open access: yesAdvanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke   +11 more
wiley   +1 more source

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

open access: yesAdvanced 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   +4 more
wiley   +1 more source

Reconfigurable beams with arbitrary polarization and shape distributions at a given plane [PDF]

open access: yes, 2013
Methods for generating beams with arbitrary polarization based on the use of liquid crystal displays have recently attracted interest from a wide range of sources.
Carnicer González, Arturo   +3 more
core   +1 more source

Real‐Time Holographic Feedback via Mixed Reality Sensorized Laryngoscope Training System Enhances Pediatric Intubation Training

open access: yesAdvanced Robotics Research, EarlyView.
We proposed a Mixed Reality Sensorized Laryngoscope Training System to provide real‐time holographic torque feedback during pediatric endotracheal intubation simulation. Visualization formats are evaluated to reduce tracking error and visual demand.
Jiaqi Li   +5 more
wiley   +1 more source

From Humans to Androids to Holograms: the Persistence of Character in Star Trek: The Next Generation and Voyager

open access: yesE-REA
Over the years, posthuman, AI-based characters have become fairly common in the Star Trek franchise, and the very question of their ontological status and of their relationship with the various human, humanoid or alien crews they work with is explored ...
Isabelle ROBLIN
doaj   +1 more source

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