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Moore DP, Remedios JJ, Waterfall AM, Burgess A. Measuring halocarbons from the MIPAS instrument.; 2004.
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Koshelets VP, Shitov SV, Dmitriev PN Ermakov A. B., Filippenko LV, Koryukin OV, Sobolev AS, et al. Integrated submillimeter and terahertz receivers with superconducting local oscillator [abstract]. In: Presanted at 8th International Workshop “From Andreev Reflection to the International Space Station”.; 2004.
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Boogaard GR, Verbruggen AH, Belzig W, Klapwijk T.M. Resistance of superconducting nanowires connected to normal-metal leads. Phys Rev B. 2004;69:220503(R)(1–4).
Abstract: We study experimentally the low temperature resistance of superconducting nanowires connected to normal metal reservoirs. Wefind that a substantial fraction of the nanowires is resistive, down to the lowest tempera-ture measured, indicative of an intrinsic boundary resistance due to the Andreev-conversion of normal current to supercurrent. The results are successfully analyzed in terms of the kinetic equations for diffusive superconductors.
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Meledin D., Pantaleev M., Pavolotsky A., Risacher C., Robles V.A.P., Belitsky V., et al. Design of a balanced waveguide HEB mixer for APEX 1.32 THz receiver. In: Proc. 15th Int. Symp. Space Terahertz Technol.; 2004. p. 211–7.
Abstract: The prototype of a waveguide balanced Hot Electron Bolometer (HEB) Terahertz mixer is designed as a part of development for the APEX Project of Band T2 receiver for 1250-1390 GHz. The proposed mixer employs balanced scheme with two identical HEB devices. These individual mixers would be placed on two separate crystalline quartz substrates with dimensions of 1000μm x67μm x17 μm each with integrated RF choke filters, DC-bias and IF circuitry. A 3 dB quadrature waveguide directional coupler is needed to provide local oscillator (LO) injection and RF signal distribution between the two HEB mixers. We have designed the coupler to achieve the required frequency band, low insertion loss and symmetrical division of the RF and LO power within the band of interest. Initial design of HEB mixer layout is developed based on a previous development for a 345 GHz sideband separation mixer. We present also results of development of microfabrication technology of the waveguide hybrid employing micromachining approach combined with electroplating technique.
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Martin슠Harwit. The Herschel mission. Advances in Space Research. 2004;34(3):568–72.
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