Zobrazeno 1 - 10
of 18
pro vyhledávání: '"C. P. Vlahacos"'
Autor:
Z. Kim, C. P. Vlahacos, J. E. Hoffman, J. A. Grover, K. D. Voigt, B. K. Cooper, C. J. Ballard, B. S. Palmer, M. Hafezi, J. M. Taylor, J. R. Anderson, A. J. Dragt, C. J. Lobb, L. A. Orozco, S. L. Rolston, F. C. Wellstood
Publikováno v:
AIP Advances, Vol 1, Iss 4, Pp 042107-042107-6 (2011)
We describe a thin-film superconducting Nb microwave resonator, tunable to within 0.3 ppm of the hyperfine splitting of 87Rb at fRb = 6.834683 GHz. We coarsely tuned the resonator using electron-beam lithography, decreasing the resonance frequency fr
Externí odkaz:
https://doaj.org/article/ecbb131db6e046afb047d4512c651255
Publikováno v:
IEEE Transactions on Applied Superconductivity. 21:412-415
One important application of scanning SQUID microscopes is fault detection in integrated circuits and multi-chip modules. However, the present generation of computer processors operate at over 1 GHz, well above the bandwidth of the present generation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3c67a270a3ac8c0691eb6e4d272600f
https://doi.org/10.1109/tasc.2010.2087735
https://doi.org/10.1109/tasc.2010.2087735
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 15:688-691
We present preliminary results on the development of a 4.2 K scanning SQUID microscope with a bandwidth in the GHz range. We have overcome the bandwidth limitations of traditional scanning SQUID microscopes, which use a flux-locked loop, by using a h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21cfdaad36ad8726038521bfe2b12285
https://doi.org/10.1109/tasc.2005.850003
https://doi.org/10.1109/tasc.2005.850003
Autor:
Frederick C. Wellstood, Steven M. Anlage, Wensheng Hu, D. E. Steinhauer, B. J. Feenstra, Sudeep Dutta, Ashfaq S. Thanawalla, C. P. Vlahacos
Publikováno v:
Journal of Superconductivity. 12:353-362
This paper discusses some of the major experimental features of microwave nonlinearity in high temperature superconductors, both intrinsic and extrinsic. The case is made for solving the problem of extrinsic nonlinearity through the use of localized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65a10abd52069b6d2086cdb87a32ff29
https://doi.org/10.1023/a:1007753316152
https://doi.org/10.1023/a:1007753316152
Publikováno v:
The Journal of Physical Chemistry A. 102:361-367
We interpret the UV absorption and fluorescence of cysteine and cystine from ab initio calculations of the ground states and lowest excited singlet states of the two molecules. We derive the optimized energies and geometry parameters from HF/6-31G co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::274a936f09b2403dd40a4bcf530d8dbd
https://doi.org/10.1021/jp971631r
https://doi.org/10.1021/jp971631r
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:3686-3689
We have developed a scanning microwave microscope which can image features with 20 /spl mu/m spatial resolution. The microscope consists of a section of open-ended coaxial cable which is scanned over the surface of a planar sample. Images can be made
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::747a35d48d3b53e1d7396cce5b4ab84f
https://doi.org/10.1109/77.622218
https://doi.org/10.1109/77.622218
Autor:
J. E. Hoffman, Jeffrey Grover, Luis A. Orozco, Benjamin Palmer, Mohammad Hafezi, Alex J. Dragt, Steven L. Rolston, Jacob M. Taylor, C. P. Vlahacos, F. C. Wellstood, Z. Kim, K.D. Voigt, C.J. Ballard, C. J. Lobb, B. K. Cooper, J. R. Anderson
Publikováno v:
AIP Advances, Vol 1, Iss 4, Pp 042107-042107-6 (2011)
We describe a thin-film superconducting Nb microwave resonator, tunable to within 0.3 ppm of the hyperfine splitting of $^{87}$Rb at $f_{Rb}=6.834683$ GHz. We coarsely tuned the resonator using electron-beam lithography, decreasing the resonance freq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d365c446f3f11b88b75a4bd227e4febb
http://arxiv.org/abs/1109.5205
http://arxiv.org/abs/1109.5205
Autor:
J. E. Hoffman, Jacob M. Taylor, Mohammad Hafezi, Luis A. Orozco, A.K. Wood, C. P. Vlahacos, Steven L. Rolston, Frederick C. Wellstood, Z. Kim, Jeffrey Grover, J. R. Anderson, Christopher Lobb, A. J. Dragt
Publikováno v:
CLEO:2011 - Laser Applications to Photonic Applications.
We present a scheme and our advances to magnetically couple 87Rb atoms to a superconducting flux qubit by trapping the atoms in the evanescent wave outside an tapered optical fiber.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::556fd2bccf4545663c6c724f34730b10
https://doi.org/10.1364/qels.2011.qthj4
https://doi.org/10.1364/qels.2011.qthj4
Autor:
D. E. Steinhauer, B. J. Feenstra, C. P. Vlahacos, Steven M. Anlage, Frederick C. Wellstood, Sheng-Chiang Lee, Andrew R. Schwartz
Publikováno v:
Applied Physics Letters. 77:4404-4406
We describe a scanning near-field microwave microscope which uses a loop probe to measure local magnetic properties of metallic samples on a length scale of 200 μm. We demonstrate imaging at 6 GHz through spatiallyresolved ferromagnetic resonance ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::654e0b55455aeb333ef893fe773b09e8
https://doi.org/10.1063/1.1332978
https://doi.org/10.1063/1.1332978
Autor:
C. P. Vlahacos, Robert B. Hammond, Frederick C. Wellstood, B. J. Feenstra, D. E. Steinhauer, S. K. Dutta, Steven M. Anlage, Ashfaq S. Thanawalla
Publikováno v:
Applied Physics Letters. 73:2491-2493
We describe the use of a cryogenic near-field scanning microwave microscope to image microwave electric fields from superconducting and normal-metal microstrip resonators. The microscope employs an open-ended coaxial probe and operates from 77 to 300
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44905bc047b40fcf0cfdba0dffab7f98
https://doi.org/10.1063/1.122492
https://doi.org/10.1063/1.122492