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Kuzin, A.; Kovalyuk, V.; Golikov, A.; Prokhodtsov, A.; Marakhin, A.; Ferrari, S.; Pernice, W.; Gippius, N.; Goltsman, G. |
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Title |
Efficiency of focusing grating couplers versus taper length and angle |
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Conference Article |
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2019 |
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J. Phys.: Conf. Ser. |
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J. Phys.: Conf. Ser. |
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1410 |
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012181 |
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focusing grating coupler |
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Abstract |
Here we experimentally studied dependence of a focusing grating coupler efficiency versus taper length and angle on silicon nitride platform. As a result, we obtained a dependence for the efficiency of a focusing grating coupler on the parameters of the taper length and angle. |
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1742-6588 |
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1184 |
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Loudkov, D.; Tong, C.-Y. E.; Marrone, D. P.; Ryabchun, S.; Paine, S. N.; Blundell, R. |
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Title |
Transmission measurements of infrared filters for low-noise terahertz receiver applications |
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Conference Article |
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2005 |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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Proc. 16th Int. Symp. Space Terahertz Technol. |
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354-357 |
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FTS, Zitex, alkali halide, crystalline quartz, Parylene, polyethylene, IR filters, transmission, THz applications |
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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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1473 |
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Goltsman, G. N.; Maliavkin, A. V.; Ptitsina, N. G.; Selevko, A. G. |
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Title |
Magnetic exciton spectroscopy in uniaxially compressed Ge at submillimeter waves |
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Conference Article |
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Year |
1986 |
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Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
Abbreviated Journal |
Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
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50 |
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280-281 |
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Ge, axial compression loads, excitons, germanium, magnetic spectroscopy, submillimeter waves, Zeeman effect |
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Russian |
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0367-6755 |
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3rd Vsesoiuznyi Seminar po Opticheskomu Detektirovaniiu Magnitnykh Rezonansov v Tverdykh Telakh, Kiev, Ukrainian SSR, May 1985 |
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1708 |
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Gershenzon, E. M.; Goltsman, G. N.; Orlov, L. |
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Title |
Investigation of population and ionization of donor excited states in Ge |
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1976 |
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Physics of Semiconductors |
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Physics of Semiconductors |
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631-634 |
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Ge, donor excited states |
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Amsterdam |
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North-Holland Publishing Co. |
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1732 |
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Gershenzon, E.; Goltsman, G.; Orlov, L.; Ptitsina, N. |
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Population of excited-states of small admixtures in germanium |
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1978 |
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Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
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Izv. Akad. Nauk SSSR, Seriya Fizicheskaya |
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42 |
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6 |
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1154-1159 |
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Ge, excited states, admixtures |
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Mezhdunarodnaya Kniga 39 Dimitrova Ul., 113095 Moscow, Russia |
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