Results 71 to 80 of about 42,397 (299)

Design of a new method for detection of occupancy in the smart home using an FBG sensor [PDF]

open access: yes, 2020
This article introduces a new way of using a fibre Bragg grating (FBG) sensor for detecting the presence and number of occupants in the monitored space in a smart home (SH).
Fajkus, Marcel   +3 more
core   +1 more source

The Effect of Purcell Cavities on the Lifetime of Thermally Activated Delayed Fluorescent Emitters

open access: yesAdvanced Functional Materials, EarlyView.
A pressing challenge to OLED displays and lighting is to balance high efficiency and long operational lifetime in the deep blue spectrum. The Purcell effect can reduce the triplet density and hence the probability for destructive energy‐driven triplet annihilation events that limit the OLED lifetime. Here we study of the Purcell effect on two different
Sritoma Paul   +4 more
wiley   +1 more source

Gap solitons attached to a gapless layer

open access: yes, 2015
We consider linear and nonlinear modes pinned to a grating-free (gapless) layer placed between two symmetric or asymmetric semi-infinite Bragg gratings (BGs), with a possible phase shift between them, in a medium with the uniform Kerr nonlinearity.
Malomed, Boris A.   +1 more
core   +1 more source

Generalized Bloch wave analysis for fiber and waveguide gratings [PDF]

open access: yes, 1997
We have developed a generalized Bloch wave approach for the analysis of aperiodic gratings. This method yields both a macroscopic (i.e., reflection or transmission coefficient) as well as a microscopic (i.e., dispersion diagram and microstructure of the ...
Capmany, José, Peral, Eva
core   +1 more source

Fiber Bragg grating regeneration temperature in standard fibers [PDF]

open access: yesSPIE Proceedings, 2015
This work has been supported by the project TEC2013-47264-C2-1-R.
Rodríguez Cobo, Luis||   +3 more
openaire   +2 more sources

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Bio-Chemical Sensors Based on Excessively Tilted Fiber Grating

open access: yesPhotonic Sensors
Excessively tilted fiber gratings (ExTFGs) are a type of special optical fiber grating device different from traditional fiber Bragg gratings, long period fiber gratings, and tilted fiber Bragg gratings.
Fudan Chen   +3 more
doaj   +1 more source

Transmission Loss of Phase-Shifted Fiber Bragg Gratins in Lossy Materials: A Theoretical and Experimental Investigation [PDF]

open access: yes, 2007
Narrow linewidth transmission filters in lossy materials based phase-shifted fiber Bragg gratings have been investigated experimentally and analytically.
Lit, John W.Y., Liu, Yu, Wei, Li
core   +1 more source

Space-division multiplexing for fiber-wireless communications

open access: yes, 2018
We envision the application of optical Space-division Multiplexing (SDM) to the next generation fiber-wireless communications as a firm candidate to increase the end user capacity and provide adaptive radiofrequency-photonic interfaces.
Barrera, David   +4 more
core   +1 more source

Nearly chirp- and pedestal-free pulse compression in nonlinear fiber Bragg gratings [PDF]

open access: yes, 2009
Peer reviewedPublisher ...
Li, Qian   +3 more
core   +1 more source

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