Results 11 to 20 of about 61,179 (219)

General theory and observation of Cherenkov radiation induced by multimode solitons

open access: yesCommunications Physics, 2021
The multifaceted nature of nonlinear multimode optical fibers has provided a fertile ground for observing novel physical effects otherwise impossible in single-mode setting.
M. A. Eftekhar   +4 more
doaj   +1 more source

Autocompensating high-dimensional quantum cryptography by phase conjugation in optical fibers [PDF]

open access: yesEPJ Web of Conferences, 2020
We present a system based on phase conjugation in optical fibers for autocompensating highdimensional quantum cryptohraphy. Phase changes and coupling effects are auto-compensated by a single loop between Alice and Bob.
Liñares-Beiras Jesús   +3 more
doaj   +1 more source

Autocompensating Measurement-Device-Independent quantum cryptography in few-mode optical fibers [PDF]

open access: yesEPJ Web of Conferences, 2020
We present an autocompensating quantum cryptography technique for Measurement-Device-Independent quantum cryptography devices with different kind of optical fiber modes.
Liñares-Beiras Jesús   +3 more
doaj   +1 more source

Functionalized silver nanoparticles as an effective medium towards trace determination of arsenic (III) in aqueous solution

open access: yesResults in Physics, 2019
Arsenic is well known for its toxicity and various health effects. In this work, we report a simple, environment friendly and cost effective colorimetric approach for selective detection of arsenic (III) in aqueous medium.
Bijoy Sankar Boruah   +2 more
doaj   +1 more source

Rapid fabrication of CuMoO4 nanocomposites via electric field assisted pulsed-laser ablation in liquids for electrochemical hydrogen generation

open access: yesApplied Surface Science Advances, 2023
Transition–metal-doped electrocatalysts are considered as low-cost alternatives of Pt and RuO2 electrocatalysts for large scale electrochemical generations of hydrogen and oxygen, respectively.
Chaudry Sajed Saraj   +5 more
doaj   +1 more source

Bright, high-repetition-rate water window soft X-ray source enabled by nonlinear pulse self-compression in an antiresonant hollow-core fibre

open access: yesLight: Science & Applications, 2021
Bright, coherent soft X-ray radiation is essential to a variety of applications in fundamental research and life sciences. To date, a high photon flux in this spectral region can only be delivered by synchrotrons, free-electron lasers or high-order ...
M. Gebhardt   +12 more
doaj   +1 more source

Nonlinear Optical Studies of Gold Nanoparticle Films

open access: yesNanomaterials, 2019
Gold films are widely used for different applications. We present the results of third- and high-order nonlinear optical studies of the thin films fabricated from Au nanoparticle solutions by spin-coating methods.
Anuradha Rout   +7 more
doaj   +1 more source

Stochastic antireflection structures on silicon fabricated by reactive ion etching [PDF]

open access: yesEPJ Web of Conferences, 2023
Stochastic Si nanostructures for antireflection (AR) fabricated by reactive ion etching (RIE) are presented for use in different spectral ranges. The lithography-free fabrication enables its application on highly curved surfaces. ALD-coatings of Al2O3 of
Schmelz David   +2 more
doaj   +1 more source

Low- and high-order nonlinear optical properties of Ag2S quantum dot thin films

open access: yesNanophotonics, 2019
Thin films containing small-sized quantum dots (QDs) and nanoparticles have shown strong optical nonlinearities caused by the confinement effect. Here, we report the study of third-order optical nonlinearities of silver sulfide (Ag2S) QD thin films using
Fu Yue   +7 more
doaj   +1 more source

35 Core Polarization-Maintaining Multi-core Fiber for High Power Operation [PDF]

open access: yesEPJ Web of Conferences
This work presents a novel rod-type 35 core multi-core fiber design that is capable of overcoming the inherent lack of polarization maintenance in such structures. A polarization extinction ratio of 10.5dB is achieved.
Khalil Yahia   +8 more
doaj   +1 more source

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