Results 21 to 30 of about 963 (185)

Operando monitoring transition dynamics of responsive polymer using optofluidic microcavities

open access: yesLight: Science & Applications, 2021
Operando monitoring transition dynamics of responsive polymer via a self-referencing optofluidic microcavity is demonstrated. The refractive index and temperature information of the analyte during the phase-transition process are precisely decoupled.
Da-Quan Yang   +6 more
doaj   +1 more source

Steerable and Modular Stripline Series-Fed Patch Antenna (SSFPA) for GEO Satellite Links

open access: yesIEEE Access
This work presents the design and fabrication of a modular stripline series-fed patch antenna (SSFPA) for Ku-band GEO communication in mobility applications.
Aqeela Saghir   +4 more
doaj   +1 more source

Focusing Light with Curved Guided-Mode Resonance Reflectors

open access: yesMicromachines, 2011
Employing numerical simulations, we investigate the possibility of using curved guided-mode resonance (GMR) elements to focus light in reflection. We treat GMR reflectors with a parabolic shape and show that they are capable of focusing light effectively
Robert Magnusson   +2 more
doaj   +1 more source

Electromagnetism with magnetic charge and two photons [PDF]

open access: yesAmerican Journal of Physics, 1996
The Dirac approach to include magnetic charge in Maxwell’s equations places the magnetic charge at the end of a string on which the the fields of the theory develop a singularity. In this paper an alternative formulation of classical electromagnetism with magnetic and electric charge is given by introducing a second pseudo-four-vector potential, Cμ, in
openaire   +2 more sources

Flexible Design of Broadside-Radiating Linearly-Polarized Edge-Fed Metasurface Antennas

open access: yesIEEE Access
In this work, we design and fabricate broadside-radiating edge-fed metasurface antennas with linear polarization employing a spatially-varying isotropic reactance; in order to avoid losses, the antenna is not terminated on a matched load.
Lucia Teodorani   +4 more
doaj   +1 more source

Electromagnetic forces in photonic crystals [PDF]

open access: yesPhysical Review B, 1999
11 pages RevTex, 14 ...
Antonoyiannakis, M. I., Pendry, J. B.
openaire   +2 more sources

Novel Modulation and Detection Mechanisms in Silicon Nanophotonics [PDF]

open access: yes, 2006
A number of nanophotonic integrated circuits are presented, which take advantage of the unique properties that light has when guided in very small waveguides to achieve novel functionality.
Baehr-Jones, Tom Wetteland
core   +1 more source

42.13 gbit/s 16qam-OFDM photonics-wireless transmission in 75-110 GHz band [PDF]

open access: yes, 2012
We present a simple architecture for realizing high capacity W-band (75-110 GHz) photonics-wireless system. 42.13 Gbit/s 16QAM-OFDM optical baseband signal is obtained in a seamless 15 GHz spectral bandwidth by using an optical frequency comb generator ...
Roberto Llorente   +17 more
core   +1 more source

Comparative Modeling of Infrared Fiber Lasers

open access: yesPhotonics, 2018
The modeling and design of fiber lasers facilitate the process of their practical realization. Of particular interest during the last few years is the development of lanthanide ion-doped fiber lasers that operate at wavelengths exceeding 2000 nm.
Slawomir Sujecki   +10 more
doaj   +1 more source

A Tool: Finding Optimum Base Station Location with S-UTD Model [PDF]

open access: yes, 2019
PhotonIcs and Electromagnetics Research Symposium - Spring (PIERS-Spring) -- JUN 17-20, 2019 -- Rome, ITALYPlacing of a TV broadcasting station to the best convenient location is vital to establish high QoS and reliable TV broadcasting systems.
M. B. Tabakcioglu   +3 more
core   +1 more source

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