Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Gregory P. Le Sage"'
Publikováno v:
IEEE Access, Vol 10, Pp 59630-59639 (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 separat
Externí odkaz:
https://doaj.org/article/39f9c7d1c90646309d772bde1fa19ce2
Publikováno v:
IEEE Access, Vol 9, Pp 32969-32978 (2021)
Utilizing 3D printing to create custom microwave filters has promising aspects such as light weight and low cost, most importantly including the fact that complicated structures can be printed quickly and inexpensively. Some SLA resins have very high
Externí odkaz:
https://doaj.org/article/c602126e3a5546cd80c16a1c02366665
Publikováno v:
IEEE Access, Vol 7, Pp 61452-61460 (2019)
Dielectric flat plate lens antennas fabricated using 3D printing offer several attractive designs features including volumetric efficient geometries, beam-steering capabilities, and relative ease of fabrication. This paper seeks to synthesize and opt
Externí odkaz:
https://doaj.org/article/fe858b306919444099bfa1e6dffb2edc
Autor:
Gregory Peter Le Sage
Publikováno v:
IEEE Access, Vol 4, Pp 1258-1265 (2016)
Waveguide slot array antennas can have high gain, since the power distribution network (waveguide) has low loss, enabling a large aperture size. Rapid response to requirements for frequency, gain, and skew angle inspired a search for an alternative t
Externí odkaz:
https://doaj.org/article/de2b318a178541a28c7ef0b37dbe2829
Autor:
Gregory Peter Le Sage
Publikováno v:
Metals, Vol 10, Iss 5, p 580 (2020)
Fabrication of microwave slot array antennas and waveguide bandpass and notch filters using 3D printing has significant advantages in terms of speed and cost even for parts with high mechanical complexity. One disadvantage of Stereolithography (SLA)
Externí odkaz:
https://doaj.org/article/9534545cd5ea4c6c80b95da290231316
Autor:
Alan J Wootton, Jaroslav Kuba, David Gibson, John K. Crane, W. J. Brown, Christopher P. J. Barty, E. P. Hartouni, Gregory P. Le Sage, Aaron Tremaine, D. R. Slaughter, James Rosenzweig, David N. Fittinghoff, Rex Booth, Fred Hartemann, S. Anderson, P. T. Springer, Robert R. Cross, Shawn Betts
Publikováno v:
Physics of Plasmas. 11:2857-2864
The PLEIADES (Picosecond Laser-Electron Inter-Action for the Dynamical Evaluation of Structures) facility has produced first light at 70 keV. This milestone offers a new opportunity to develop laser-driven, compact, tunable x-ray sources for critical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1791d909befff3cf36a9474a6321b08
https://doi.org/10.1063/1.1646160
https://doi.org/10.1063/1.1646160
Autor:
Hyunchae Cynn, W. J. Brown, D. R. Slaughter, Christopher P. J. Barty, S. Anderson, Andy McMahan, James Rosenzweig, John A. Moriarty, Rex Booth, Robert R. Cross, Todd Ditmire, Frederic V. Hartemann, Jaroslav Kuba, David Gibson, Choong-Shik Yoo, John K. Crane, Gregory P. Le Sage, Frederick H. Streitz, Aaron Tremaine, P. T. Springer, David N. Fittinghoff
Publikováno v:
SPIE Proceedings.
The use of ultrafast laser pulses to generate very high brightness, ultrashort (10 -14 to 10 -12 s) pulses of x-rays is a topic of great interest to the x-ray user community. In principle, femtosecond-scale pump-probe experiments can be used to tempo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a494363d2fd3c3df382c33d24e982b57
https://doi.org/10.1117/12.478587
https://doi.org/10.1117/12.478587
Autor:
Frederic V. Hartemann, Tak S. Chu, Anthony L. Troha, J. R. Van Meter, Gregory P. Le Sage, Corey V. Bennett, Victor Dinh, Brian H. Kolner, Jonathan P. Heritage, Hector A. Baldis, Neville C. Luhmann, Jr.
Publikováno v:
ResearcherID
At ultrahigh intensities, where the normalized vector potential of the laser wave exceeds unity, the electron axial velocity modulation due to radiation pressure yields nonlinear Compton backscattered spectra. For applications requiring a narrow Dopp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b1309c1def9f144f31eb70859a52b33
https://doi.org/10.1117/12.274398
https://doi.org/10.1117/12.274398
Autor:
S. A. Rosenau, Gregory P. Le Sage, Scott N. Fochs, Neville C. Luhmann, Frederic V. Hartemann, L. L. Laurent, Helena X.C. Feng
Publikováno v:
SPIE Proceedings.
A compact, high repetition rate (2.142 GHz in burst mode), relativistic (5 MeV) photoinjector facility is currently under construction at the UC Davis Department of Applied Science, on the LLNL site. Photoelectron bunches are produced by irradiating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f9fb35ac67b8c66f817eb745fab4446
https://doi.org/10.1117/12.218558
https://doi.org/10.1117/12.218558