Results 81 to 90 of about 1,363,250 (192)

Question: Negative Group Delays and Action-at-a-Distance

, 1998
We comment on the paper by M. W. Mitchell and R. Y. Chiao, ``Causality and negative group delay in a simple bandpass amplifier", Am. J. Phys. 66 (1), 14-19 (1998).
Chubykalo, Andrew E., Dvoeglazov, Valeri V.   +1 more
openaire   +2 more sources

Tunable reflected group delay from the graphene/hBN heterostructure at infrared frequencies

Results in Physics, 2019
In this paper, we theoretically investigated the reflected group delay from the graphene/hexagonal boron nitride (hBN) heterostructure in the infrared band.
Zhiwei Zheng, Fangyuan Lu, Xiaoyu Dai
doaj   +1 more source

A simple predictor based on delay-induced negative group delay

, 2016
Changes to version 2: Corrections, extensions, new ...
openaire   +2 more sources

Enhanced Reflected Group Delay with Optical Tamm State via Graphene-Dielectric Bragg Mirror Configuration

Advances in Condensed Matter Physics, 2019
Group delay of the optical pulse reflected from the structure composed of graphene and one dimensional photonic crystal (1D PC) is studied. It is shown that the large negative group delay in this configuration can be realized due to the excitation of the
Jiao Tang, Jiao Xu, Hui Zhou, Zhiwei Zheng, Yuxiang Zhou, Rui Weng, Yueying Wei, Yue Liu, Qiwei Liu, Leyong Jiang, Shengyou Qian   +10 more
doaj   +1 more source

Tunable Group Delay of the Optical Pulse Reflection From Fabry–Perot Cavity With the Insertion of Graphene Sheets

IEEE Photonics Journal, 2014
We have theoretically investigated the group delay of the TE-polarized beam reflected from a Fabry-Perot cavity with the insertion of the graphene sheets in the near-infrared band.
Leyong Jiang, Xiaoyu Dai, Yuanjiang Xiang, Shuangchun Wen   +3 more
doaj   +1 more source

Impact of competition on microfinance beneficiaries: evidence from India [PDF]

, 2007
India has been implementing Microfinance programmes for the last three decades. The journey from Micro-Credit to Microfinance has been long. Presently formal financial institutions and government and non-government agencies are implementing microfinance ...
Guha, Samapti
core  

Impulsivity, Rejection Sensitivity, and Reactions to Stressors in Borderline Personality Disorder

, 2016
This research investigated baseline impulsivity, rejection sensitivity, and reactions to stressors in individuals with borderline personality disorder compared to healthy individuals and those with avoidant personality disorder .
Berenson, Kathy R., Downey, Geraldine, Glaser, Erin, Gregory, Wesley Ellen, Rafaeli, Eshkol, Romirowsky, Aliza, Yang, Xiao   +6 more
core   +1 more source

Enhanced Group Delay of the Pulse Reflection with Graphene Surface Plasmon via Modified Otto Configuration

Advances in Condensed Matter Physics, 2017
In this paper, the group delay of the transverse magnetic (TM) polarized wave reflected from a modified Otto configuration with graphene surface plasmon is investigated theoretically.
Guimei Li, Qiwei Liu, Yue Liu, Yueying Wei, Rui Weng, Yuxiang Zhou, Leyong Jiang   +6 more
doaj   +1 more source

Tunable and light-controllable bistable reflected group delay based on nonlinear surface plasmon resonance with graphene

Results in Physics, 2019
In this paper, we have shown that tunable nonlinear group delay of reflected light beam at terahertz frequencies can be achieved by a modified Otto configuration with the insertion of monolayer graphene and nonlinear substrate.
Jiao Xu, Jiao Tang, Yuxiang Peng, Zhiwei Zheng, Xiangliang Jin, Shengyou Qian, Jun Guo, Leyong Jiang, Yuanjiang Xiang   +8 more
doaj   +1 more source

Negative group delay active topologies respectively dedicated to microwave frequencies and baseband signals

, 2008
©Copyright 2008 European Microwave Association http://www.eumwa.org/en/publications/international-journal/journal.htmlInternational audienceThis paper proposes and describes in details the synthesis, design and implementation of two different active ...
Le Roy, Marc, Pérennec, André, Ravelo, Blaise,   +2 more
core   +1 more source