Records |
Author |
Dorenbos, S. N.; Reiger, E. M.; Perinetti, U.; Zwiller, V.; Zijlstra, T.; Klapwijk, T. M. |
Title |
Low noise superconducting single photon detectors on silicon |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
Year |
2008 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
93 |
Issue |
13 |
Pages |
131101 |
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0003-6951 |
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Call Number |
RPLAB @ s @ |
Serial |
436 |
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Author |
Floet, D. Wilms; Baselmans, J. J. A.; Klapwijk, T. M.; Gao, J. R. |
Title |
Resistive transition of niobium superconducting hot-electron bolometer mixers |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
Year |
1998 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
73 |
Issue |
19 |
Pages |
2826 |
Keywords |
HEB |
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0003-6951 |
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no |
Call Number |
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Serial |
543 |
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Author |
Kooi, J. W.; Baselmans, J. J. A.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; Dieleman, P.; Baryshev, A.; de Lange, G. |
Title |
IF impedance and mixer gain of NbN hot electron bolometers |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
Year |
2007 |
Publication |
J. Appl. Phys. |
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Volume |
101 |
Issue |
4 |
Pages |
044511 |
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ISSN |
0021-8979 |
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RPLAB @ s @ |
Serial |
445 |
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Author |
Baselmans, J. J. A.; Hajenius, M.; Gao, J. R.; Baryshev, A.; Kooi, J.; Klapwijk, T. M.; Voronov, B.; de Korte, P.; Gol'tsman, G. |
Title |
NbN hot electron bolometer mixers: sensitivity, LO power, direct detection and stability |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
Year |
2005 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
Volume |
15 |
Issue |
2 |
Pages |
484-489 |
Keywords |
HEB mixers, direct detection effect, stability, Allan variance |
Abstract |
We demonstrate that the performance of NbN lattice cooled hot electron bolometer mixers depends strongly on the interface quality between the bolometer and the contact structure. Both the receiver noise temperature and the gain bandwidth can be improved by a factor of 2 by cleaning the interface and adding an additional superconducting interlayer to the contact pad. Using this we obtain a double sideband receiver noise temperature of 950 K at 2.5 THz and 4.3 K, using a 0.4/spl times/4 /spl mu/m HEB mixer with a spiral antenna. At the same bias point, we obtain an IF gain bandwidth of 6 GHz. To comply with current demands on THz mixers for use in space based receivers we reduce the device size to 0.15/spl times/1 /spl mu/m and use a twin slot antenna. We report measurements of the noise temperature, LO power requirement, stability and the direct detection effect, using a mixer with a 1.6 THz twin slot antenna and a 1.462 THz solid state LO source with calibrated output power. |
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ISSN |
1051-8223 |
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no |
Call Number |
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Serial |
546 |
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Author |
Gao, J. R.; Hajenius, M.; Yang, Z. Q.; Baselmans, J. J. A.; Khosropanah, P.; Barends, R.; Klapwijk, T. M. |
Title |
Terahertz superconducting hot electron bolometer heterodyne receivers |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
Journal Article |
Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
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Volume |
17 |
Issue |
2 |
Pages |
252-258 |
Keywords |
HEB, mixer, direct detection effect |
Abstract |
We highlight the progress on NbN hot electron bolometer (HEB) mixers achieved through fruitful collaboration between SRON Netherlands Institute for Space Research and Delft University of Technology, the Netherlands. This includes the best receiver noise temperatures of 700 K at 1.63 THz using a twin-slot antenna mixer and 1050 K at 2.84 THz using a spiral antenna coupled HEB mixer. The mixers are based on thin NbN films on Si and fabricated with a new contact-process and-structure. By reducing their areas HEB mixers have shown an LO power requirement as low as 30 nW. Those small HEB mixers have demonstrated equivalent sensitivity as those with large areas provided the direct detection effect due to broadband radiation is removed. To manifest that a HEB based heterodyne receiver can in practice be used at arbitrary frequencies above 2 THz, we demonstrate a 2.8 THz receiver using a THz quantum cascade laser (QCL) as local oscillator. |
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1051-8223 |
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no |
Call Number |
RPLAB @ asmirn @ |
Serial |
557 |
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