منابع مشابه
Measurement Method for Determining the Equivalent Reflection Coefficient of Directional Couplers and Power Splitters
A measurement method presented by John R. Juroshek (NIST) in conjunction with the Vector Network Analyzers R&S ZVM or R&S ZVK from Rohde & Schwarz allows fast and accurate determination of the equivalent reflection coefficient of power splitters or directional couplers. If the magnitude and phase of reflection coefficients of source (e.g. power splitter) and sink (e.g. power meter) are known, a...
متن کاملCotorsion Theories and Splitters
Let R be a subring of the rationals. We want to investigate self splitting R-modules G that is ExtR(G,G) = 0 holds and follow Schultz [22] to call such modules splitters. Free modules and torsion-free cotorsion modules are classical examples for splitters. Are there others? Answering an open problem by Schultz [22] we will show that there are more splitters, in fact we are able to prescribe the...
متن کاملNanoplasmonic near-field synthesis
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. The temporal response of resonances in nanoplasmonic structures typically converts an incoming few-cycle field into...
متن کاملAlmost Free Splitters
Let R be a subring of the rationals. We want to investigate self splitting R-modules G that is ExtR(G,G) = 0 holds. For simplicity we will call such modules splitters, see [16]. Also other names like stones are used, see a dictionary in Ringel’s paper [14]. Our investigation continues [10]. In [10] we answered an open problem by constructing a large class of splitters. Classical splitters are f...
متن کاملAttosecond nanoplasmonic-field microscope
MARK I. STOCKMAN*, MATTHIAS F. KLING, ULF KLEINEBERG AND FERENC KRAUSZ* Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, D-85748 Garching, Germany Ludwig-Maximilians-Universität München, Department für Physik, Am Coulombwall 1, D-85748 Garching, Germany *e-mail: [email protected]; ferenc.kr...
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ژورنال
عنوان ژورنال: Optics Express
سال: 2009
ISSN: 1094-4087
DOI: 10.1364/oe.17.019033