Results 131 to 140 of about 33,386 (301)

Engineering narrowband biphotons

open access: yes, 2018
We describe quantum state engineering of narrowband biphotons in diverse degrees of freedom, including time frequency, polarization, and position momentum. These biphotons are produced from spontaneous four-wave mixing in atomic ensembles.
Du, Shengwang
core  

Hell's Itch: A Self‐Case Report

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT Hell's itch is a severely distressing dermatological condition characterized by the onset of incessant itching and intolerable pain 2–3 days post‐sunburn. It is underdiagnosed and underreported, and no definitive management framework has yet been developed.
Kai Peter Moors, Willem I. Visser
wiley   +1 more source

Resonantly enhanced thermal emitters based on nanophotonic structures

open access: yes, 2015
The manipulation of photons, especially the control of spontaneous emission, has become a core area of photonics research in the 21st century. One of the key challenges is the control of the broadband emission profile of thermal emitters.
O'Regan, Bryan J.
core  

Broadband and narrowband Internet in Nepal

open access: yes, 2017
This paper examines the relationship between asymmetric digital subscriber line (broadband) and dial-up (narrowband) Internet subscribers in Nepal. While the number of broadband subscribers is increasing, the number of narrowband subscribers has been ...
Jitendra Parajuli   +3 more
core   +1 more source

Successful Treatment of Refractory Lichen Amyloidosus With Dupilumab

open access: yesJEADV Clinical Practice, EarlyView.
ABSTRACT Lichen amyloidosis (LA) is a chronic, pruritic dermatosis with papillary dermal amyloid deposition. Standard therapies often fail, and most reports of dupilumab in LA involve patients with concomitant atopic dermatitis. We report a 32‐year‐old man with refractory, non‐atopic LA who had failed topical corticosteroids, tacrolimus, phototherapy ...
Sohrab Elahwiesy   +5 more
wiley   +1 more source

Wide-to-narrowband reconfigurable Vivaldi antenna using switched-feed technique

open access: yes, 2016
This paper presents research on a Vivaldi antenna with the ability to change its operating frequency between narrowband and wideband. In total, five different modes are supported: a wideband and four narrowband modes.
Kelly, J. R.   +3 more
core  

Size Matters: Barrier Heights and Widths in the Kinetics Of Tautomerisation and Rotamerisation of Thiotropolone and Its Five‐ and Three‐Membered Cyclic Analogues

open access: yesInternational Journal of Chemical Kinetics, EarlyView.
ABSTRACT Recent experiments by Nunes et al. have demonstrated that unprecedented control of chemical reactions is possible by narrowband infrared vibrational photo‐excitation at low temperatures in inert matrices. The generated higher energy level conformers may then undergo rotamerisation and tautomerisation reactions which provide extremely useful ...
Judith Wurmel, John M. Simmie
wiley   +1 more source

Switchable printed antenna for wideband-narrowband application

open access: yes, 2014
Recently, the multi-mode application that consists of wideband system or UWB wideband-narrowband configuration have been reported as an important device for future wireless communication system such as Cognitive Radio (CR).
Taat, Afifah
core  

Recent Advances in Photonic Bound States in the Continuum: From Fundamentals to Engineering and Implementation

open access: yesLaser &Photonics Reviews, EarlyView.
This review summarizes recent progress in meta‐photonics with a focus on bound states in the continuum (BICs) as a powerful platform for light confinement and control. It covers fundamental concepts, design strategies across optical regimes, symmetry breaking for practical quasi‐BICs, tunable and AI‐assisted BIC devices, and emerging applications in ...
Hafiz Saad Khaliq, Hak‐Rin Kim
wiley   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

open access: yesLaser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

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