Zobrazeno 1 - 10
of 10
pro vyhledávání: '"R. A. Panhuyzen"'
Autor:
R. A. Panhuyzen, M. W. M. de Graauw, H. van der Stadt, G. de Lange, T. M. Klapwijk, J. J. Kuipers
Publikováno v:
Journal of Applied Physics, 77(4), 1795-1804. AMER INST PHYSICS
The frequency response of three superconductive niobium resonating circuits, formed by a Nb microstrip and a Nb tunnel junction, is measured and analyzed at frequencies above the superconducting gap frequency. The circuits are placed in a waveguide s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdab9ae696af4231dca20ee77fa8e8d9
https://research.rug.nl/en/publications/a56a91fd-cfb3-48ab-9b55-bb22b90e8a7d
https://research.rug.nl/en/publications/a56a91fd-cfb3-48ab-9b55-bb22b90e8a7d
Autor:
A. Skalare, B. J. Feenstra, H. van der Stadt, R. A. Panhuyzen, M. M. T. M. Dierichs, C.E. Noningh, T. de Graauw, J. Wijnbergen
Publikováno v:
Ieee transactions on microwave theory and techniques, 41(4), 605-608
The resonances of integrated tuning stubs in combination with SIS (superconductor-insulator-superconductor) detectors are measured and calculated. The predicted resonances are compared with measurements of stubs integrated with Nb-Al/sub 2/O/sub 3/-N
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1576583e869b688d46e46356725abab
https://hdl.handle.net/11370/45f7a271-1580-4b3e-adbc-ffdb3f05d481
https://hdl.handle.net/11370/45f7a271-1580-4b3e-adbc-ffdb3f05d481
Autor:
R. A. Panhuyzen, M. W. M. de Graauw, M. M. T. M. Dierichs, H. Schaeffer, Cornelia E. Honingh, T. M. Klapwijk, G. de Lange, H. van de Stadt
Publikováno v:
IEEE Transactions on Applied Superconductivity, 3(1), 2613-2616. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The noise and gain of a heterodyne waveguide mixer using Nb/Al/sub 2/O/sub 3//Nb superconducting tunnel junctions were measured in the 400-500-GHz frequency range. Three different arrays of two junctions in series are analyzed. The minimum receiver n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39e1ded5fbc88049e8a6f936e03b149b
https://research.rug.nl/en/publications/a87d6d4c-d819-44eb-947c-721b4ed0e931
https://research.rug.nl/en/publications/a87d6d4c-d819-44eb-947c-721b4ed0e931
Publikováno v:
Microelectronic Engineering, 13(1-4), 463-467
A simple technique is described to fabricate submicron patterns in Nb films. Typical aspects are the use of a single layer PMMA mask and CF3Br as an etchant. Trenches with a width of less than 100 nm and very steep sidewalls have been obtained in a 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e53b55c58ea542220b6021571d5b8e41
https://hdl.handle.net/11370/c7742aa6-da15-4e9e-9a57-69acacfa61ca
https://hdl.handle.net/11370/c7742aa6-da15-4e9e-9a57-69acacfa61ca
Autor:
H. Schaeffer, R. A. Panhuyzen, J. J. Kuipers, T. M. Klapwijk, Cornelia E. Honingh, G. de Lange, M. W. M. de Graauw, H. van de Stadt
Publikováno v:
Applied Physics Letters, 64(22), 3039-3041
The noise and gain of a heterodyne waveguide mixer employing Nb/Al2O3/Nb superconducting tunnel junctions with an on-chip integrated tuning element are measured and analyzed at 680-750 GHz and at 840 GHz. The lowest receiver noise temperatures are 40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::791fa73530429cfb405aef8732ba94ba
https://hdl.handle.net/11370/4dd4b6a8-b05b-423f-aa0d-f4370b65895c
https://hdl.handle.net/11370/4dd4b6a8-b05b-423f-aa0d-f4370b65895c
Publikováno v:
Applied Physics Letters. 62:774-776
High‐current density, submicron‐sized superconductor‐insulator‐superconductor niobium junctions are made with optical lithography. With a novel process junctions as small as 0.8 μm2 are routinely made using a controlled under‐etch with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0375411e8e3010e9d112d411be8fcd4
https://doi.org/10.1063/1.108575
https://doi.org/10.1063/1.108575
Autor:
J. J. Kuipers, Susanne Crewell, J. Mees, H. van de Stadt, H. Nett, G. de Lange, R. A. Panhuyzen
Publikováno v:
Ieee transactions on microwave theory and techniques, 43(11), 2543-2548
A heterodyne receiver making use of a SIS waveguide mixer with integrated horn and single backshort tuner has been built. It has been used for a series of airborne measurements of atmospheric trace gases, such as HCl and ClO, above northern Europe du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d76d496b3759fa7d0d9bb0de5e1bfdb
https://research.rug.nl/en/publications/2cb99922-8135-4d42-bc24-623e293b9e92
https://research.rug.nl/en/publications/2cb99922-8135-4d42-bc24-623e293b9e92
Autor:
R. A. Panhuyzen, J. J. Kuipers, T. M. Klapwijk, M. W. M. de Graauw, H. van de Stadt, G. de Lange
Publikováno v:
Journal of Applied Physics, 76(12), 8016-8021. AMER INST PHYSICS
The rf‐power dependence of the ac‐Josephson steps is measured at 720 GHz, using small area Nb tunnel junctions. This frequency is well above the gap frequency of Nb. The junction is placed in a waveguide, and connected to a superconducting stripl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19dbe711be5008b24d75ca47cbe8bad9
https://research.rug.nl/en/publications/95822111-e4e2-43cb-a401-a86c695fd08d
https://research.rug.nl/en/publications/95822111-e4e2-43cb-a401-a86c695fd08d
Autor:
Th. De Graauw, J.E. Mooij, G.T. Horst, T. M. Klapwijk, H. Schaeffer, R. A. Panhuyzen, J. Kortland
Publikováno v:
IEEE Transactions on Magnetics, 23(2), 1259-1262. IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Planar Nb-Nb Josephson Junctions (JJ's) have been developed to be used in submillimeter heterodyne mixers. Experimental mixing results show a System Noise Temperature around 1000 K with a best result of 800 K at an operating temperature of 1.5 K. Pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::429e5359d4d303681b7094ae57dc9ae7
https://doi.org/10.1109/tmag.1987.1064913
https://doi.org/10.1109/tmag.1987.1064913
Autor:
R. A. Panhuyzen, J. Kortland, T. M. Klapwijk, Th. De Graauw, H. Schaeffer, G. ter Horst, Th. J. Helmerhorst
Publikováno v:
SPIE Proceedings.
Josephson junctions (JJ) mixers have been developped and in the millimeter (185-270 GHz) and in the sub-millimeter range (345 GHz, 1000 GHz). Pointcontact devices have shown the best noise temperatures (Tsys = 420 K at 230 GHz) but are unreliable for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55af3049a98bb3e05a1249eb223dd5d0
https://doi.org/10.1117/12.952317
https://doi.org/10.1117/12.952317