|
Records |
Links |
|
Author |
Zorin, M.; Milostnaya, I.; Gol'tsman, G. N.; Gershenzon, E. M. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
|
|
Title |
Fast NbN superconducting switch controlled by optical radiation |
Type |
Journal Article |
|
Year |
1997 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
|
|
Volume |
7 |
Issue |
2 |
Pages |
3734-3737 |
|
|
Keywords |
NbN superconducting switch |
|
|
Abstract |
The switching time and the optical control power of the NbN superconducting switch have been measured. The device is based on the ultrathin film 5-8 nm thick patterned as a structure of several narrow parallel strips (/spl sim/1 /spl mu/m wide) connected to wide current leads. The current-voltage characteristic of the switch at temperature 4.2 K demonstrated a hysteresis due to DC current self-heating. We studied the superconducting-to-resistive state transition induced by both optical and bias-current excitations. The optical pulse duration was /spl sim/20 ps and the rise time of the current step was determined to be less than 50 ps. The optical pulse was delivered to the switch by the semiconductor laser through an optical fiber. We found that the measured switching time is less than the duration of the optical excitation. The threshold optical power density does not exceed 3/spl middot/10/sup 3/ W/cm/sup 2/. The proposed device can be used in the fiber input of LTS rapid single flux quantum circuits. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1051-8223 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1596 |
|
Permanent link to this record |
|
|
|
|
Author |
Svechnikov, S.; Gol'tsman, G.; Voronov, B.; Yagoubov, P.; Cherednichenko, S.; Gershenzon, E.; Belitsky, V.; Ekstrom, H.; Kollberg, E.; Semenov, A.; Gousev, Y.; Renk, K. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
|
|
Title |
Spiral antenna NbN hot-electron bolometer mixer at submm frequencies |
Type |
Journal Article |
|
Year |
1997 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
|
|
Volume |
7 |
Issue |
2 |
Pages |
3395-3398 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We have studied the phonon-cooled hot-electron bolometer (HEB) as a quasioptical mixer based on a spiral antenna designed for the 0.3-1 THz frequency band and fabricated on sapphire and high resistivity silicon substrates. HEB devices were produced from superconducting 3.5-5 nm thick NbN films with a critical temperature 10-12 K and a critical current density of approximately 10/sup 7/ A/cm/sup 2/ at 4.2 K. For these devices we reached a DSB receiver noise temperature below 1500 K, a total conversion loss of L/sub t/=16 dB in the 500-700 GHz frequency range, an IF bandwidth of 3-4 GHz and an optimal LO absorbed power of /spl sime/4 /spl mu/W. We experimentally analyzed various contributions to the conversion loss and obtained an RF coupling factor of about 5 dB, internal mixer loss of 10 dB and IF mismatch of 1 dB. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1051-8223 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1597 |
|
Permanent link to this record |
|
|
|
|
Author |
Semenov, A. D.; Heusinger, M. A.; Renk, K. F.; Menschikov, E.; Sergeev, A. V.; Elant'ev, A. I.; Goghidze, I. G.; Gol'tsman, G. N. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
|
|
Title |
Influence of phonon trapping on the performance of NbN kinetic inductance detectors |
Type |
Journal Article |
|
Year |
1997 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
|
|
Volume |
7 |
Issue |
2 |
Pages |
3083-3086 |
|
|
Keywords |
NbN KID |
|
|
Abstract |
Voltage and microwave photoresponse of NbN thin films to modulated and pulsed optical radiation reveals, far below the superconducting transition, a response time consistent with the lifetime of nonequilibrium quasiparticles. We show that even in 5 nm thick films at 4.2 K the phonon trapping is significant resulting in a quasiparticle lifetime of a few nanoseconds that is an order of magnitude larger than the recombination time. Values and temperature dependence of the quasiparticle lifetime obey the Bardeen-Cooper-Schrieffer theory and are in quantitative agreement with the electron-phonon relaxation rate determined from the resistive response near the superconducting transition. We discuss a positive effect of the phonon trapping on the performance of kinetic inductance detectors. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1051-8223 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1598 |
|
Permanent link to this record |
|
|
|
|
Author |
Kawamura, J.; Blundell, R.; Tong, C.-yu E.; Gol’tsman, G.; Gershenzon, E.; Voronov, B.; Cherednichenko, S. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
|
|
Title |
Low noise NbN lattice-cooled superconducting hot-electron bolometric mixers at submillimeter wavelengths |
Type |
Journal Article |
|
Year |
1997 |
Publication |
Appl. Phys. Lett. |
Abbreviated Journal |
Appl. Phys. Lett. |
|
|
Volume |
70 |
Issue |
12 |
Pages |
1619-1621 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
Lattice-cooled superconducting hot-electron bolometric mixers are used in a submillimeter-wave waveguide heterodyne receiver. The mixer elements are niobium nitride film with 3.5 nm thickness and ∼10 μm2 area. The local oscillator power for optimal performance is estimated to be 0.5 μW, and the instantaneous bandwidth is 2.2 GHz. At an intermediate frequency centered at 1.4 GHz with 200 MHz bandwidth, the double sideband receiver noise temperature is 410 K at 430 GHz. The receiver has been used to detect molecular line emission in a laboratory gas cell. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0003-6951 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1599 |
|
Permanent link to this record |
|
|
|
|
Author |
Gerecht, E.; Musante, C. F.; Yngvesson, K. S.; Waldman, J.; Gol'tsman, G. N.; Yagoubov, P. A.; Voronov, B. M.; Gershenzon, E. M. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
|
|
Title |
Optical coupling and conversion gain for NbN HEB mixer at THz frequencies |
Type |
Conference Article |
|
Year |
1997 |
Publication |
Proc. 4-th Int. Semicond. Device Research Symp. |
Abbreviated Journal |
Proc. 4-th Int. Semicond. Device Research Symp. |
|
|
Volume |
|
Issue |
|
Pages |
47-50 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
|
|
|
Address |
Charlottesville, Virginia |
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1601 |
|
Permanent link to this record |
|
|
|
|
Author |
Verevkin, A. A.; Ptitsina, N. G.; Smirnov, K. V.; Gol'tsman, G. N.; Voronov, B. M.; Gershenzon, E. M.; Yngvesson, K. S. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
|
|
Title |
Hot electron bolometer detectors and mixers based on a superconducting-two-dimensional electron gas-superconductor structure |
Type |
Conference Article |
|
Year |
1997 |
Publication |
Proc. 4-th Int. Semicond. Device Research Symp. |
Abbreviated Journal |
Proc. 4-th Int. Semicond. Device Research Symp. |
|
|
Volume |
|
Issue |
|
Pages |
163-166 |
|
|
Keywords |
S-2DEG-S HEB mixers, detectors, AlGaAs/GaAs heterostructures, NbN |
|
|
Abstract |
|
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1603 |
|
Permanent link to this record |
|
|
|
|
Author |
Ekström, H.; Kollberg, E.; Yagoubov, P.; Gol'tsman, G.; Gershenzon, E.; Yngvesson, S. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
|
|
Title |
Phonon cooled ultra thin NbN hot electron bolometer mixers at 620 GHz |
Type |
Conference Article |
|
Year |
1997 |
Publication |
Proc. 8th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 8th Int. Symp. Space Terahertz Technol. |
|
|
Volume |
|
Issue |
|
Pages |
29-35 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We have measured the noise performance and gain bandwidth of 35 A thin NbN hot-electron mixers integrated with spiral antennas on silicon substrate lenses at 620 GHz. A double-sideband receiver noise temperature less than 1300 K has been obtained with a 3 dB bandwidth of GHz. The gain bandwidth is 3.2 GHz. A lower noise temperature of 1100 K has been achieved with an improved set-up. The mixer output noise dominated by thermal fluctuations is about 50-60 K, and the SSB receiver and intrinsic conversion gain is about -18 and -12 dB, respectively. Without mismatch losses and excluding the loss from the beamsplitter, we expect to achieve a receiver noise temperature of less than 700 K. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1604 |
|
Permanent link to this record |
|
|
|
|
Author |
Gerecht, E.; Musante, C. F.; Wang, Z.; Yngvesson, K. S.; Waldman, J.; Gol'tsman, G. N.; Yagoubov, P. A.; Svechnikov, S. I.; Voronov, B. M.; Cherednichenko, S. I.; Gershenzon, E. M. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
|
|
Title |
NbN hot electron bolometric mixer for 2.5 THz: the phonon cooled version |
Type |
Conference Article |
|
Year |
1997 |
Publication |
Proc. 8th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 8th Int. Symp. Space Terahertz Technol. |
|
|
Volume |
|
Issue |
|
Pages |
258-271 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We describe an investigation of a NbN HEB mixer for 2.5 THz. NbN HEBs are phonon-cooled de-. vices which are expected, according to theory, to achieve up to 10 GHz IF conversion gain bandwidth. We have developed an antenna coupled device using a log-periodic antenna and a silicon lens. We have demon- strated that sufficient LO power can be coupled to the device in order to bring it to the optimum mixer oper- ating point. The LO power required is less than 1 microwatts as measured directly at the device. We also describe the impedance characteristics of NbN devices and compare them with theory. The experimental results agree with theory except for the imaginary part of the impedance at very low frequencies as was demonstrated by other groups. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1605 |
|
Permanent link to this record |
|
|
|
|
Author |
Ekström, H.; Kroug, M.; Belitsky, V.; Kollberg, E.; Olsson, H.; Goltsman, G.; Gershenzon, E.; Yagoubov, P.; Voronov, B.; Yngvesson, S. |
![find record details (via OpenURL) openurl](https://db.rplab.ru/refbase/img/xref.gif)
|
|
Title |
Hot electron mixers for THz applications |
Type |
Conference Article |
|
Year |
1996 |
Publication |
Proc. 30th ESLAB |
Abbreviated Journal |
Proc. 30th ESLAB |
|
|
Volume |
|
Issue |
|
Pages |
207-210 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
We have measured the noise performance of 35 A thin NbN HEB devices integrated with spiral antennas on antireflection coated silicon substrate lenses at 620 GHz. From the noise measurements we have determined a total conversion gain of the receiver of—16 dB, and an intrinsic conversion of about-10 dB. The IF bandwidth of the 35 A thick NbN devices is at least 3 GHz. The DSB receiver noise temperature is less than 1450 K. Without mismatch losses, which is possible to obtain with a shorter device, and with reduced loss from the beamsplitter, we expect to achieve a DSB receiver noise temperature of less ‘than 700 K. |
|
|
Address |
Noordwijk, Netherlands |
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
Rolfe, E. J.; Pilbratt, G. |
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
Submillimetre and Far-Infrared Space Instrumentation |
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1606 |
|
Permanent link to this record |
|
|
|
|
Author |
Kawamura, J.; Blundell, R.; Tong, C.‐yu E.; Gol’tsman, G.; Gershenzon, E.; Voronov, B. |
![goto web page (via DOI) doi](https://db.rplab.ru/refbase/img/doi.gif)
|
|
Title |
Performance of NbN lattice‐cooled hot‐electron bolometric mixers |
Type |
Journal Article |
|
Year |
1996 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
J. Appl. Phys. |
|
|
Volume |
80 |
Issue |
7 |
Pages |
4232-4234 |
|
|
Keywords |
NbN HEB mixers |
|
|
Abstract |
The heterodyne performance of lattice‐cooled hot‐electron bolometric mixers is measured at 200 GHz. Superconducting thin‐film niobium nitride strips with ∼5 nm thickness are used as waveguide mixer elements. A double‐sideband receiver noise temperature of 750 K at 244 GHz is measured at an intermediate frequency centered at 1.5 GHz with 500 MHz bandwidth and with 4.2 K device temperature. The instantaneous bandwidth for this mixer is 1.6 GHz. The local oscillator power required by the mixer is about 0.5 μW. The mixer is linear to within 1 dB up to an input power level 6 dB below the local oscillator power. A receiver incorporating a hot‐electron bolometric mixer was used to detect molecular line emission in a laboratory gascell. This experiment unambiguously confirms that the receiver noise temperature determined from Y‐factor measurements reflects the true heterodyne sensitivity. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis ![sorted by Thesis field, descending order (down)](https://db.rplab.ru/refbase/img/sort_desc.gif) |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
0021-8979 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
|
Serial |
1607 |
|
Permanent link to this record |