Zobrazeno 1 - 10
of 91
pro vyhledávání: '"L.M. Earley"'
Autor:
David W. Reagor, L.M. Earley, Dennis R. Guidry, Steven J. Russell, H. M. Volz, Pallas A. Papin, Pin Yang, Quinn R. Marksteiner, Ching-Fong Chen, Dale Allen Dalmas
Publikováno v:
Journal of the American Ceramic Society. 94:3727-3732
A Ba0.75Sr0.25Ti0.95Zr0.05O3 ceramic was developed for use in nonlinear transmission line (NLTL) applications. The sol–gel process was used to synthesize Ba0.75Sr0.25Ti0.95Zr0.05O3 nanoparticles to achieve a uniform composition and a high surface a
Publikováno v:
IEEE Transactions on Plasma Science. 36:763-767
We have designed, fabricated, and tested with low power a novel W-band traveling-wave tube (TWT) structure based on a slow-wave cylindrically symmetric photonic band gap (PBG) structure, or an ldquoomniguide.rdquo The development of wideband millimet
Autor:
W.B. Haynes, Evgenya I. Smirnova, Frank L. Krawczyk, F.P. Romero, L.M. Earley, Zhi-Fu Wang, Bruce E. Carlsten, Steven J. Russell
Publikováno v:
IEEE Transactions on Plasma Science. 34:2393-2403
A gain experiment was performed at Los Alamos using a 120-keV 2-A cylindrical electron beam with a ridged waveguide slow-wave structure at 94 GHz, demonstrating 22 dB of amplification through a traveling-wave interaction. The structure was planar wit
Autor:
L.M. Earley, Steven J. Russell, Bruce E. Carlsten, James M. Potter, S. Humphries, Patrick Ferguson, Frank L. Krawczyk
Publikováno v:
IEEE Transactions on Plasma Science. 33:85-93
A sheet-beam traveling-wave amplifier has been proposed as a high-power generator of radio frequency (RF) from 95 to 300 GHz, using a microfabricated RF slow-wave structure (Carlsten, 2002). The planar geometry of microfabrication technologies matche
Publikováno v:
SPIE Proceedings.
The nonlinear electromagnetic response is one of the foundations of modern technology and it arises in natural materials at the atomic scale. We briefly present some of the fundamentals of nonlinearity in natural materials and then we present experim
Autor:
R. Renneke, L.M. Earley, Dale Allen Dalmas, Dmitry Yu. Shchegolkov, W.B. Haynes, Evgenya I. Simakov
Publikováno v:
2011 Abstracts IEEE International Conference on Plasma Science.
Compact, efficient, high-bandwidth and high-power mm-wave sources are essential for many applications in secure communications, environmental monitoring, imaging, spectroscopy for remote sensing in nonproliferation, and basic research such as radio a
Autor:
Evgenya I. Smirnova, Dmitry Yu. Shchegolkov, R. Renneke, L.M. Earley, W. Brian Haynes, Nikolai Yampolsky
Publikováno v:
2010 IEEE International Vacuum Electronics Conference (IVEC).
We have designed, fabricated and tested with low power a novel W-band TWT based on a slow-wave cylindrically-symmetric PBG dielectric structure, or an “omniguide”. PBG TWT structures have great potential for very large bandwidth and linear disper
Publikováno v:
2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves.
We have designed, fabricated and tested several novel passive mm-wave spectrometers based on Photonic Band Gap (PBG) structures. Our spectrometers were designed to operate in the frequency ranges of 90–130 and 220–300 GHz. We built and tested bot
Publikováno v:
2009 IEEE International Conference on Plasma Science - Abstracts.
Compact, efficient, high-bandwidth and high-power mm-wave sources are essential for many applications in secure communications, environmental monitoring, imaging, spectroscopy for remote sensing in nonproliferation, and basic research such as radio a
Publikováno v:
2008 33rd International Conference on Infrared, Millimeter and Terahertz Waves.
We have designed and are fabricating a novel passive mm-wave spectrometer based on a photonic band gap (PBG) channel-drop filter (CDF). There is a need for a compact, wide-band, versatile and configurable mm-wave spectrometer for applications in mm-w