| Records |
| Author |
Maas, S. |
| Title |
SIS mixers |
Type  |
Conference Article |
| Year |
1993 |
Publication |
Artech House |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
338-340 |
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Place of Publication |
Boston, MA |
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no |
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Serial |
249 |
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| Author |
Tonguz, O.K.; Hwang, B. |
| Title |
Noise performance of AFC loops in optical heterodyne receivers |
Type |
Conference Article |
| Year |
1993 |
Publication |
Proc. Lasers and Electro-Optics Society Annual Meeting |
Abbreviated Journal |
Proc. LEOS |
| Volume |
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Issue |
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Pages |
361-362 |
| Keywords |
optical mixing |
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Place of Publication |
San Jose, CA, USA |
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Approved |
no |
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Serial |
510 |
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| Author |
Ekstrom, H.; Karasik, B.; Weikle, R.; Yngvesson, K. S.; Gol’tsman, G.; Kollberg, E.; Gershenzon, E. |
| Title |
Mixers using superconducting Nb films in the resistive state |
Type |
Conference Article |
| Year |
1993 |
Publication |
23rd European Microwave Conf. |
Abbreviated Journal |
23rd European Microwave Conf. |
| Volume |
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Issue |
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Pages |
787-789 |
| Keywords |
Nb HEB mixers |
| Abstract |
The mixing of 20 GHz radiation in a Nb superconducting film in the resistive state was studied. The experiment gave evidence of electron-heating to be the origin of the non-linear phenomenon. The requirements on the operation mode and on the film parameters in order to obtain small conversion losses or even gain are determined. Our measurements indicate a conversion loss of about 6-8 dB. The hot-electron bolometer is considered to be very promising for use in heterodyne receivers in a wide frequency range from microwaves to terahertz frequencies. |
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no |
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Serial |
1651 |
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| Author |
Gol’tsman, G. N.; Gershenzon, E. M. |
| Title |
High speed hot-electron superconducting bolometer |
Type |
Conference Article |
| Year |
1993 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
2104 |
Issue |
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Pages |
181-182 |
| Keywords |
NbN HEb, Nb, Al |
| Abstract |
Physical limitation of response time of a superconducting bolometer as well as the nature of non-equilibrium detection of radiation have been investigated for Al, Nb and NbN thin films in spectral range from submillimeter to near-infraredwavelengths [1,2]. In the case of ideal heat removal from the film with the f_‘. 100A thickness the detection mechanism is an electron heating effect that is not selective to radiation wavelength in a very broad range. The response time ofan electron heating bolometer is determined by an electron-phonon interaction time. This time is of about 10 ns, 0.5 ns and 20 ps for Al, Nb, and NbN correspondingly near the critical temperature of the superconducting film. Thesensitive area of the bolometer consists of a number of narrow strips (with awidth of 1µm) connected in parallel to contact pads; these pads together witha sapphire substrate and a ground plate represent the microstrip transmissionline with an impedance of 50 Q. |
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SPIE |
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Editor |
Birch, J.R.; Parker, T.J. |
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Conference |
18th International Conference on Infrared and Millimeter Waves |
| Notes |
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Approved |
no |
| Call Number |
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Serial |
1652 |
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| Author |
Danerud, M.; Winkler, D.; Zorin, M.; Trifonov, V.; Karasik, B.; Gershenzon, E. M.; Gol'tsman, G. N.; Lindgren, M. |
| Title |
Picosecond detection of infrared radiation with YBa2Cu3O7-δ thin films |
Type |
Conference Article |
| Year |
1993 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
2104 |
Issue |
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Pages |
183-184 |
| Keywords |
YBCO HTS HEB detectors |
| Abstract |
Picosecond nonequilibrium and slow bolometric responses from a patterned high-Tc superconducting (HTS) film due toinfrared radiation were investigated using both modulation and pulse techniques. Measurements at A, = 0.85 [tm andA, = 10.6 lim have shown a similar behaviour of the response vs modulation frequency f. The responsivity of the HTS filmbased detector at f ..- 0.6-1 GHz is estimated to be 10-2 – 10-1 V/W. |
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Thesis |
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| Publisher |
Spie |
Place of Publication |
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Editor |
Birch, J.R.; Parker, T.J. |
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Conference |
18th International Conference on Infrared and Millimeter Waves |
| Notes |
https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=25034664 |
Approved |
no |
| Call Number |
10.1117/12.2298489 |
Serial |
1653 |
| Permanent link to this record |
