Results 1 to 10 of about 1,007,462 (290)

Roles of Potential Gradient and Electrode Bandwidth on Negative Differential Resistance in One-Dimensional Band Insulator

open access: yes, 2014
A negative differential resistance (NDR) in a one-dimensional band insulator attached to electrodes is investigated. We systematically examine the effects of an electrode bandwidth and a potential distribution inside the insulator on current-voltage ...
Tanaka, Yasuhiro, Yonemitsu, Kenji
core   +1 more source

Effective photons in weakly absorptive dielectric media and the Beer–Lambert–Bouguer law

open access: yesNew Journal of Physics, 2014
We derive effective photon modes that facilitate an intuitive and convenient picture of photon dynamics in a structured Kramers–Kronig dielectric in the limit of weak absorption.
A C Judge   +5 more
doaj   +1 more source

TWO ELEMENT MICROSTRIP ANTENNA ARRAY USING STAR SLOT ELECTROMAGNETIC BAND GAP STRUCTURE [PDF]

open access: yesJournal of Engineering Science (Chişinău), 2019
This paper deals with the performance of two element antenna array without and with electromagnetic band gap structures. The antenna arrays are using Mentor Graphics IE3D software and measurements have been taken using vector network analyzer.
Rao, K. Prahlada   +2 more
doaj   +1 more source

Broadband, High Efficiency OMT in E-Band

open access: yesIEEE Access, 2022
A high-performance, broadband E-Band orthomode transducer (OMT) was designed and fabricated for a dedicated frequency converter. Cross-polarized signals between 71 and 86 GHz, received in a TE11 mode circular waveguide needed to be split into separate ...
Gregory Peter Le Sage   +1 more
doaj   +1 more source

Bandwidth Borrowing Schemes for Instantaneous Video-on-Demand Systems [PDF]

open access: yes, 2004
A controlled multicast scheme provides instantaneous service, but limited server bandwidth causes some user requests to be either delayed or rejected when insufficient free bandwidth is available.
Azad, S., Dooley, L. S., Murshed, M.
core  

Optimal Bandwidth Choice for Robust Bias Corrected Inference in Regression Discontinuity Designs

open access: yes, 2020
Modern empirical work in Regression Discontinuity (RD) designs often employs local polynomial estimation and inference with a mean square error (MSE) optimal bandwidth choice.
Calonico, Sebastian   +2 more
core   +1 more source

Active temporal multiplexing of indistinguishable heralded single photons

open access: yesNature Communications, 2016
Deterministically generated single photons are useful for quantum communications, but the processes that create such light are often non-deterministic.
C. Xiong   +10 more
doaj   +1 more source

Dynamic Bit Allocation for Object Tracking in Bandwidth Limited Sensor Networks

open access: yes, 2011
In this paper, we study the target tracking problem in wireless sensor networks (WSNs) using quantized sensor measurements under limited bandwidth availability. At each time step of tracking, the available bandwidth $R$ needs to be distributed among the $
Masazade, Engin   +2 more
core   +1 more source

Temporal characterization of a multi-wavelength Brillouin–erbium fiber laser

open access: yesNew Journal of Physics, 2016
This paper provides the first detailed temporal characterization of a multi-wavelength-Brillouin–erbium fiber laser (MWBEFL) by measuring the optical intensity of the individual frequency channels with high temporal resolution. It is found that the power
Victor Lambin Iezzi   +6 more
doaj   +1 more source

Sub-60-fs Timing Jitter of a SESAM Modelocked VECSEL

open access: yesIEEE Photonics Journal, 2013
We present noise measurements of a pulse train emitted from an actively stabilized semiconductor-saturable-absorber-mirror (SESAM) modelocked vertical external cavity surface emitting laser (VECSEL).
V. J. Wittwer   +6 more
doaj   +1 more source

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