| Records |
| Author |
Karpov, A.; Miller, D.; Stern, J. A.; Bumble, B.; LeDuc, H. G.; Zmuidzinas, J. |
| Title |
Low noise NbTiN 1.25 THz SIS mixer for Herschel Space Observatory |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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| Volume |
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Issue |
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Pages |
450 |
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Place of Publication |
Göteborg, Sweden |
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no |
| Call Number |
RPLAB @ s @ nt_SIS_760at1p25THz |
Serial |
359 |
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| Author |
Marrone, Daniel P.; Raymond Blundell; Edward Tong; Paine, Scott. N.; Denis Loudkov; Jonathan Kawamura; Daniel Luhr; Claudio Barrientos |
| Title |
Observations in the 1.3 and 1.5 THz atmospheric windows with the Receiver Lab Telescope |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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| Volume |
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Issue |
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Pages |
64-67 |
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Place of Publication |
Göteborg, Sweden |
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no |
| Call Number |
RPLAB @ s @ RLT_observ |
Serial |
361 |
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| Author |
Meledin, D.; Pantaleev, M.; Pavolotsky, A.; Risacher, C.; Belitsky, V.; Drakinskiy, V.; Cherednichenko, S. |
| Title |
Balanced waveguide HEB mixer for APEX 1.3 THz receiver |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
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Place of Publication |
Göteborg, Sweden |
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no |
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RPLAB @ s @ wg_balanced |
Serial |
362 |
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| Author |
Hübers, H. W.; Pavlov, S. G.; Semenov, A. D.; Tredicucci, A.; Köhler, R.; Mahler, L.; Beere, H. E.; Linfield, E. H.; Ritchie, D. A. |
| Title |
Investigation of a 2.5 THz quantum cascade laser as local oscillator |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
18 |
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Place of Publication |
Göteborg, Sweden |
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RPLAB @ s @ qc_lasers_huebers |
Serial |
366 |
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| Author |
Mair, U.; Suttywong, N.; Hübers, H.-W.; Semenov, A. D.; Richter, H.; Wagner, G.; Birk, M. |
| Title |
Development of 1.8 THz receiver for the TELIS instrument |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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Issue |
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Pages |
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Place of Publication |
Göteborg, Sweden |
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no |
| Call Number |
RPLAB @ s @ qo_TELIS_1p8_THz |
Serial |
364 |
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| Author |
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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Pages |
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Place of Publication |
Göteborg, Sweden |
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no |
| Call Number |
RPLAB @ s @ ESPRIT_interferom_Wild |
Serial |
365 |
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| Author |
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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| Volume |
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Issue |
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Pages |
19-23 |
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Place of Publication |
Göteborg, Sweden |
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| Notes |
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Approved |
no |
| Call Number |
RPLAB @ s @ qc_lasers_gao_isstt16 |
Serial |
367 |
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| Author |
Loudkov, D.; Tong, C.-Y. E.; Marrone, D. P.; Ryabchun, S.; Paine, S. N.; Blundell, R. |
| Title |
Transmission measurements of infrared filters for low-noise terahertz receiver 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 |
354-357 |
| Keywords |
FTS, Zitex, alkali halide, crystalline quartz, Parylene, polyethylene, IR filters, transmission, THz applications |
| Abstract |
Infrared (IR) filters are very important to the efficient operation of cryogenic receivers. Usually, such filters are mounted on the radiation shield of the cryostat to reduce the heat load to the 4 K stage. Insufficient filtering may cause the temperature of the mixing element in a receiver to be excessively warm, leading to degradation in sensitivity. These filters should be effective in blocking the room temperature IR radiation from outside the cryostat, yet should be transparent across the desired signal frequency band. In the Terahertz frequency range, which is close to the infrared, it is difficult to find an inexpensive low- loss material that can provide the required IR blocking capacity. We present transmission measurements, made using a Fourier Transform Spectrometer (FTS), of a number of potential infrared filters between 0.4 and 1.6 THz. The filters tested include the widely-used, Teflon-based, Zitex-A and Zitex-G films, alkali halide based infrared filter, and crystalline quartz coated with Parylene, and polyethylene films. |
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Approved |
no |
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Serial |
1473 |
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| Author |
Cherednichenko, S.; Kollberg, E.; Angelov, I.; Drakinskiy, V.; Berg, T.; Merkel, H. |
| Title |
Effect of the direct detection effect on the HEB receiver sensitivity calibration |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proc. 16th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
235-239 |
| Keywords |
HEB, mixer, direct detection effect |
| Abstract |
We analyze the scale of the HEB receiver sensitivity calibration error caused by the so called “direct detection effect”. The effect comes from changing of the HEB parameters when whey face the calibration loads of different temperatures. We found that for HIFI Band 6 mixers (Herschel Space Observatory) the noise temperature error is of the order of 8% for 300K/77K loads (lab receiver) and 2.5% for 100K/10K loads (in HIFI). Using different approach we also predict that with an isolator between the mixer and the low noise amplifiers the error can be much smaller. |
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Place of Publication |
Göteborg, Sweden |
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Approved |
no |
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Serial |
360 |
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| Author |
Finkel, M. I.; Maslennikov, S. N.; Vachtomin, Yu. B.; Svechnikov, S. I.; Smirnov, K. V.; Seleznev, V. A.; Korotetskaya, Yu. P.; Kaurova, N. S.; Voronov, B. M.; Gol'tsman, G. N. |
| Title |
Hot electron bolometer mixer for 20 – 40 THz frequency range |
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 |
393-397 |
| Keywords |
IR NbN HEB mixers |
| Abstract |
The developed HEB mixer was based on a 5 nm thick NbN film deposited on a GaAs substrate. The active area of the film was patterned as a 30×20 μm 2 strip and coupled with a 50 Ohm coplanar line deposited in situ. An extended hemispherical germanium lens was used to focus the LO radiation on the mixer. The responsivity of the mixer was measured in a direct detection mode in the 25÷64 THz frequency range. The noise performance of the mixer and the directivity of the receiver were investigated in a heterodyne mode. A 10.6 μm wavelength CW CO 2 laser was utilized as a local oscillator. |
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Göteborg, Sweden |
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no |
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Serial |
369 |
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