| Records |
| Author |
Karasik, B. S.; Milostnaya, I. I.; Zorin, M. A.; Elantev, A. I.; Gol'tsman, G. N.; Gershenzon, E. M. |
| Title |
High speed current switching of homogeneous YBaCuO film between superconducting and resistive states |
Type |
Journal Article |
| Year |
1995 |
Publication |
IEEE Trans. Appl. Supercond. |
Abbreviated Journal |
IEEE Trans. Appl. Supercond. |
| Volume |
5 |
Issue |
2 |
Pages |
3042-3045 |
Keywords  |
YBCO HTS HEB switches |
| Abstract |
Transitions of thin structured YBaCuO films from superconducting (S) to normal (N) state and back induced by a supercritical current pulse has been studied. A subnanosecond stage in the film resistance dynamic has been observed. A more gradual (nanosecond) ramp in the time dependence of the resistance follows the fast stage. The fraction of the film resistance which is attained during the fast S-N stage rises with the current amplitude. Subnanosecond N-S switching is more pronounced for smaller amplitudes of driving current and for shorter pulses. The phenomena observed are viewed within the framework of an electron heating model. The expected switching time and repetition rate of an optimized current controlling device are estimated to be 1-2 ps and 80 GHz respectively. |
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| ISSN |
1051-8223 |
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1620 |
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| Author |
Cherednichenko, S.; Rönnung, F.; Gol'tsman, G.; Kollberg, E.; Winkler, D. |
| Title |
YBa2Cu3O7−δ hot-electron bolometer mixer |
Type |
Journal Article |
| Year |
2000 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
| Volume |
341-348 |
Issue |
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Pages |
2653-2654 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
We present an investigation of hot-electron bolometric mixer based on YBa2Cu3O7−δ (YBCO) superconducting thin film. Mixer conversion loss, absorbed local oscillator power and intermediate frequency bandwidth was measured at the local oscillator frequency 600 GHz. The fabrication technique for nanoscale YBCO hot-electron bolometer (HEB) mixer integrated into planar antenna structure is described. |
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| ISSN |
0921-4534 |
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1552 |
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| Author |
Cherednichenko, S.; Rönnung, F.; Gol’tsman, G.; Kollberg, E.; Winkler, D. |
| Title |
YBa2Cu3O7-δ hot-electron bolometer mixer at 0.6 THz |
Type |
Conference Article |
| Year |
2000 |
Publication |
Proc. 11th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 11th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
517-522 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
We present an investigation of hot-electron bolometric mixer based on a YBa 2 Cu 3 O 7-δ (YBCO) superconducting thin film. Mixer conversion loss of –46 dB, absorbed local oscillator power and intermediate frequency bandwidth were measured at the local oscillator frequency 0.6 THz. The fabrication technique for nanoscale YBCO hot-electron bolometer (HEB) mixer integrated with a planar antenna structure is described. |
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Serial |
1556 |
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| Author |
Rönnung, F.; Cherednichenko, S.; Winkler, D.; Gol'tsman, G. N. |
| Title |
A nanoscale YBCO mixer optically coupled with a bow tie antenna |
Type |
Journal Article |
| Year |
1999 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
| Volume |
12 |
Issue |
11 |
Pages |
853-855 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
The bolometric response of YBa2Cu3O7-δ(YBCO) hot-electron bolometers (HEBs) to near-infrared radiation was studied. Devices were fabricated from a 50 nm thick film and had in-plane areas of 10 × 10 µm2, 2 × 0.2 µm2, 1 × 0.2µm2 and 0.5 × 0.2 µm2. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one. |
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Edition |
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| ISSN |
0953-2048 |
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no |
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Serial |
1563 |
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| Author |
Cherednichenko, S.; Ronnung, F.; Gol'tsman, G.; Gershenzon, E.; Winkler, D. |
| Title |
YBa2Cu3O7-δ hot-electron bolometer with submicron dimensions |
Type |
Conference Article |
| Year |
1999 |
Publication |
Proc. 10th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 10th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
181-189 |
| Keywords |
YBCO HTS HEB mixers |
| Abstract |
Photoresponse of YBa2Cu3O7-δ hot-electron bolometers to modulated near-infrared radiation was studied at a modulation .frequenc y var y ing from 0.2 MHz to 2 GHz. Bolometers were _fabricated from a 50 12 M thick film and had in-plane areas of 10x10 , um 2 . 2x0.2 s um', 1x0.2 p.m', and 0.5x0.2 jim. We found that nonequilibrium phonons cool down more effectively for the bolometers with smaller area. For the smallest bolometer the bolometric component in the response is 10 dB less than for the largest one. |
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no |
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1572 |
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