Records |
Author |
Jackson, B. D.; Baryshev, A. M.; de Lange, G.; Gao, J. R.; Shitov, S. V.; Iosad, N. N.; Klapwijk, T. M. |
Title |
Low-noise 1 THz superconductor-insulator-superconductor mixer incorporating a NbTiN/SiO2/Al tuning circuit |
Type |
Journal Article |
Year |
2001 |
Publication |
Appl. Phys. Lett. |
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Volume |
79 |
Issue |
3 |
Pages |
436 |
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RPLAB @ s @ sis_Jackson_2001 |
Serial |
314 |
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Gao, G. R.; Hovenier, J. N.; Yang, Z. Q.; Baselmans, J. J. A.; Baryshev, A.; Hajenius, M.; Klapwijk, T. M.; Adam, A. J. L.; Klaassen, T. O.; Williams, B. S.; Kumar, S.; Hu, Q.; Reno, J. L. |
Title |
A novel terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer |
Type |
Conference Article |
Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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Pages |
19-23 |
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Göteborg, Sweden |
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RPLAB @ s @ qc_lasers_gao_isstt16 |
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367 |
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Author |
Gao, J. R.; Hovenier, J. N.; Yang, Z. Q.; Baselmans, J. J. A.; Baryshev, A.; Hajenius, M.; Klapwijk, T. M.; Adam, A. J. L.; Klaassen, T. O.; Williams, B. S.; Kumar, S.; Hu, Q.; Reno, J. L. |
Title |
Terahertz heterodyne receiver based on a quantum cascade laser and a superconducting bolometer |
Type |
Journal Article |
Year |
2005 |
Publication |
Appl. Phys. Lett. |
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Volume |
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Issue |
86 |
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art.num. 244104 |
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RPLAB @ s @ qc_lasers_gao |
Serial |
368 |
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Author |
Baryshev, A.; Lauria, E.; Hesper, R.; Zijlstra, T.; Wild, W. |
Title |
Fixed-tuned waveguide 0.6 THz SIS mixer with wide band IF |
Type |
Conference Article |
Year |
2002 |
Publication |
Proc. 13th Int. Symp. Space Terahertz Technol. |
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1-9 |
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Cambridge, MA, USA |
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Harward University |
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RPLAB @ s @ nt_SIS_136at0p65THz |
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328 |
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Wild, W.; de Graauw, Th.; Baryshev, A.; Bos, A.; Gao, J. R.; Gunst, A.; Helmich, F.; ter Horst, R.; Jackson, B.; Maat, P.; Noordam, J.; Roelfsema, P.; Venema, L.; Whyborn, N.; Yagoubov, P. |
Title |
Terahertz technology for ESPRIT – a far-infrared space interferometer |
Type |
Conference Article |
Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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Göteborg, Sweden |
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no |
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RPLAB @ s @ ESPRIT_interferom_Wild |
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365 |
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Author |
Hajenius, M.; Baselmans, J. J. A.; Baryshev, A.; Gao, J. R.; Klapwijk, T. M.; Kooi, J. W.; Jellema, W.; Yang, Z. Q. |
Title |
Full characterization and analysis of a terahertz heterodyne receiver based on a NbN hot electron bolometer |
Type |
Journal Article |
Year |
2006 |
Publication |
J. Appl. Phys. |
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Volume |
100 |
Issue |
7 |
Pages |
074507 |
Keywords |
HEB |
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0021-8979 |
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no |
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RPLAB @ s @ |
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385 |
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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 |
Journal Article |
Year |
2007 |
Publication |
J. Appl. Phys. |
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Volume |
101 |
Issue |
4 |
Pages |
044511 |
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0021-8979 |
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no |
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RPLAB @ s @ |
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445 |
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Author |
Yates, S. J. C.; Baryshev, A. M.; Baselmans, J. J. A.; Klein, B.; Güsten, R. |
Title |
Fast Fourier transform spectrometer readout for large arrays of microwave kinetic inductance detectors |
Type |
Journal Article |
Year |
2009 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
95 |
Issue |
4 |
Pages |
3 |
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Abstract |
Microwave kinetic inductance detectors have great potential for large, very sensitive detector arrays for use in, for example, submillimeter imaging. Being intrinsically readout in the frequency domain, they are particularly suited for frequency domain multiplexing allowing ~1000 s of devices to be readout with one pair of coaxial cables. However, this moves the complexity of the detector from the cryogenics to the warm electronics. We present here the concept and experimental demonstration of the use of fast Fourier transform spectrometer readout, showing no deterioration of the noise performance compared to the low noise analog mixing while allowing high multiplexing ratios. |
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RPLAB @ gujma @ |
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697 |
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Author |
Baselmans, J.; Kooi, J.; Baryshev, A.; Yang, Z. Q.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; Voronov, B.; Gol’tsman, G. |
Title |
Full characterization of small volume NbN HEB mixers for space applications |
Type |
Conference Article |
Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Volume |
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Issue |
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Pages |
457-462 |
Keywords |
NbN HEB mixers |
Abstract |
NbN phonon cooled HEB’s are one of the most promising bolometer mixer technologies for (near) future (space) applications. Their performance is usually quantified by mea- suring the receiver noise temperature at a given IF frequency, usually around 1 – 2 GHz. However, for any real applications it is vital that one fully knows all the relevant properties of the mixer, including LO power, stability, direct detection, gain bandwidth and noise bandwidth, not only the noise temperature at low IF frequencies. To this aim we have measured all these parameters at the optimal operating point of one single, small volume quasioptical NbN HEB mixer. We find a minimum noise temperature of 900 K at 1.46 THz. We observe a direct detection effect indicated by a change in bias current when changing from a 300 K hot load to a 77 K cold load. Due to this effect we overestimate the noise temperature by about 22% using a 300 K hot load and a 77 K cold load. The LO power needed to reach the optimal operating point is 80 nW at the receiver lens front, 59 nW inside the NbN bridge. However, using the isothermal technique we find a power absorbed in the NbN bridge of 25 nW, a difference of about a factor 2. We obtain a gain bandwidth of 2.3 GHz and a noise bandwidth of 4 GHz. The system Allan time is about 1 sec. in a 50 MHz spectral bandwidth and a deviation from white noise integration (governed by the radiometer equation) occurs at 0.2 sec., which implies a maximum integration time of a few seconds in a 1 MHz bandwidth spectrometer. |
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Göteborg, Sweden |
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363 |
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Author |
Baselmans, J. J. A.; Baryshev, A.; Reker, S. F.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.; Vahtomin, Yu.; Maslennikov, S.; Antipov, S.; Voronov, B.; Gol'tsman, G. |
Title |
Direct detection effect in small volume hot electron bolometer mixers |
Type |
Journal Article |
Year |
2005 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
86 |
Issue |
16 |
Pages |
163503 (1 to 3) |
Keywords |
HEB, mixer, direct detection effect |
Abstract |
We measure the direct detection effect in a small volume (0.15μm×1μm×3.5nm)(0.15μm×1μm×3.5nm) quasioptical NbN phonon cooled hot electronbolometermixer at 1.6THz1.6THz. We find that the small signal sensitivity of the receiver is underestimated by 35% due to the direct detection effect and that the optimal operating point is shifted to higher bias voltages when using calibration loads of 300K300K and 77K77K. Using a 200GHz200GHzbandpass filter at 4.2K4.2K the direct detection effect virtually disappears. This has important implications for the calibration procedure of these receivers in real telescope systems. |
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377 |
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