Results 31 to 40 of about 2,848,759 (416)

Photons, neutrinos, and the optical activity [PDF]

open access: yesPhysical Review D, 2001
We compute the one-loop helicity amplitudes for low-energy $ \to $ scattering and its crossed channels in the standard model with massless neutrinos. In the center of mass, with $\sqrt{s} = 2 \ll 2m_e$, the cross sections for these $2\to 2$ channels grow roughly as $ ^6$. The scattered photons in the elastic channel are circularly polarized and
Wayne W. Repko, Ali Abbasabadi
openaire   +3 more sources

High-operating-temperature mid-infrared photodetectors via quantum dot gradient homojunction

open access: yesLight: Science & Applications, 2023
Colloidal quantum dot gradient homojunction would effectively improve the detectivity of mid-infrared photodetector at high-operating temperatures, motivating interest in low-cost, solution-processed and high-performance mid-infrared photodetection.
Xiaomeng Xue   +5 more
doaj   +1 more source

Graphene Oxide for Integrated Photonics and Flat Optics [PDF]

open access: yesAdvances in Materials, 2020
With superior optical properties, high flexibility in engineering its material properties, and strong capability for large‐scale on‐chip integration, graphene oxide (GO) is an attractive solution for on‐chip integration of 2D materials to implement ...
Jiayang Wu   +5 more
semanticscholar   +1 more source

Optobiology: live cells in optics and photonics

open access: yesJournal of Physics: Photonics, 2020
A new intriguing paradigm recently emerged in bio-photonics, in which a single biological element such as a simple cell can be used as an optical or photonic component having well-defined features.
L. Miccio   +4 more
semanticscholar   +1 more source

A reversible optical memory for twisted photons [PDF]

open access: yes2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013
We report on an experiment in which orbital angular momentum of light is mapped at the single-photon level into and out of a cold atomic ensemble. Based on the dynamic electromagnetically-induced transparency protocol, the demonstrated optical memory enables the reversible mapping of Laguerre-gaussian modes with preserved handedness of the helical ...
L. Veissier   +6 more
openaire   +8 more sources

Augmented reality and virtual reality displays: emerging technologies and future perspectives

open access: yesLight: Science & Applications, 2021
Emerging holographic optical elements and lithography-based devices are enhancing the performances of augmented reality and virtual reality displays with glasses-like form factor.
Jianghao Xiong   +4 more
doaj   +1 more source

Synthetic photonic lattices: new routes towards all-optical photonic devices [PDF]

open access: yesNature Communications 8, 16097 (2017), 2016
All-optical photonic devices are crucial for many important photonic technology and applications, ranging from optical communication to quantum information processing. Conventional design of all-optical devices is based on photon propagation and interference in real space, which may reply on large numbers of optical elements and are challenging for ...
arxiv   +1 more source

Nonlinear optics of photonic hyper-crystals: optical limiting and hyper-computing [PDF]

open access: yesJOSA B 36, 1629-1636 (2019), 2018
Photonic hyper-crystals combine the most interesting features of hyperbolic metamaterials and photonic crystals. Since the dispersion law of extraordinary photons in hyperbolic metamaterials does not exhibit the usual diffraction limit, photonic hyper-crystals exhibit light localization on deep subwavelength scales, leading to considerable enhancement ...
arxiv   +1 more source

Optimal photons for quantum information processing [PDF]

open access: yesPhys. Rev. A 72, 052332 (2005), 2005
Photonic quantum information processing schemes, such as linear optics quantum computing, and other experiments relying on single-photon interference, inherently require complete photon indistinguishability to enable the desired photonic interactions to take place.
arxiv   +1 more source

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