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Банная, В. Ф.; Веселова, Л. И.; Гершензон, Е. М. |
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Title |
Особенности температурной зависимости холловской подвижности в легированных и некомпенсированных полупроводниках |
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Journal Article |
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Year |
1989 |
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Физика и техника полупроводников |
Abbreviated Journal |
Физика и техника полупроводников |
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23 |
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2 |
Pages |
338-345 |
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Keywords |
weakly compensated Si, Ge, doped, Hall mobility |
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Abstract |
На примере легированного и слабо компенсированного Si⟨B⟩ проведены исследования особенностей температурной зависимости подвижности при различных механизмах рассеяния. Уточнен метод определения концентрации компенсирующей примеси по μI(T). Полученные результаты обсуждаются и для Ge. |
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1758 |
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Voevodin, E. I.; Gershenzon, E. M.; Goltsman, G. N.; Ptitsina, N. G.; Chulkova, G. M. |
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Title |
Capture of free holes by charged acceptors in uniaxially deformed Ge |
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Journal Article |
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Year |
1988 |
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Fizika i Tekhnika Poluprovodnikov |
Abbreviated Journal |
Fizika i Tekhnika Poluprovodnikov |
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Volume |
22 |
Issue |
3 |
Pages |
540-543 |
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Ge, free holes, capture |
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Цель настоящей работы — исследование кинетики примесной фотопроводимости p-Ge при сильном одноосном сжатии в широком диапазоне изменения интенсивности примесного подсвета, создающего свободные дырки, и определение сечения каскадного захвата дырок на мелкие заряженные акцепторы в условиях преобладания электрон-фононного механизма потерь энергии. |
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Russian |
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Захват свободных дырок заряженными акцепторами в одноосно деформированном Ge |
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1698 |
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Gershenzon, E. M.; Orlov, L. A.; Ptitsina, N. G. |
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Absorption spectra in electron transitions between excited states of impurities in germanium |
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1975 |
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JETP Lett. |
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JETP Lett. |
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22 |
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4 |
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95-97 |
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Keywords |
Ge, impurities, excited states, absorption spectra |
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1773 |
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Kovalyuk, V.; Hartmann, W.; Kahl, O.; Kaurova, N.; Korneev, A.; Goltsman, G.; Pernice, W. H. P. |
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Absorption engineering of NbN nanowires deposited on silicon nitride nanophotonic circuits |
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2013 |
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Opt. Express |
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Opt. Express |
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21 |
Issue |
19 |
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22683-22692 |
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SSPD, SNSPD, NbN nanoeires, Si3N4 waveguides |
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Abstract |
We investigate the absorption properties of U-shaped niobium nitride (NbN) nanowires atop nanophotonic circuits. Nanowires as narrow as 20nm are realized in direct contact with Si3N4 waveguides and their absorption properties are extracted through balanced measurements. We perform a full characterization of the absorption coefficient in dependence of length, width and separation of the fabricated nanowires, as well as for waveguides with different cross-section and etch depth. Our results show excellent agreement with finite-element analysis simulations for all considered parameters. The experimental data thus allows for optimizing absorption properties of emerging single-photon detectors co-integrated with telecom wavelength optical circuits. |
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1094-4087 |
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PMID:24104155 |
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1213 |
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Iomdina, E. N.; Goltsman, G. N.; Seliverstov, S. V.; Sianosyan, A. A.; Teplyakova, K. O.; Rusova, A. A. |
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Study of transmittance and reflectance spectra of the cornea and the sclera in the THz frequency range |
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2016 |
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J. Biomed. Opt. |
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J. Biomed. Opt. |
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21 |
Issue |
9 |
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97002 (1 to 5) |
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BWO, IMPATT diode, Schottky diode, medicine, animals, cornea, physiology, humans, rabbits, sclera diagnostic imaging, physiology |
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Abstract |
An adequate water balance (hydration extent) is one of the basic factors of normal eye function, including its external shells: the cornea and the sclera. Adequate control of corneal and scleral hydration is very important for early diagnosis of a variety of eye diseases, stating indications for and contraindications against keratorefractive surgeries and the choice of contact lens correction solutions. THz systems of creating images in reflected beams are likely to become ideal instruments of noninvasive control of corneal and scleral hydration degrees. This paper reports on the results of a study involving transmittance and reflectance spectra for the cornea and the sclera of rabbit and human eyes, as well as those of the rabbit eye, in the frequency range of 0.13 to 0.32 THz. The dependence of the reflectance coefficient of these tissues on water mass percentage content was determined. The experiments were performed on three corneas, three rabbit scleras, two rabbit eyes, and three human scleras. The preliminary results demonstrate that the proposed technique, based on the use of a continuous THz radiation, may be utilized to create a device for noninvasive control of corneal and scleral hydration, which has clear potential of broad practical application. |
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Moscow State Pedagogical University, Department of Physics, 29 Malaya Pirogovskaya Street, Moscow 119435, Russia |
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English |
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1083-3668 |
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PMID:27626901 |
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1335 |
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