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Lang, P. T.; Knott, W. J.; Leipold, I.; Renk, K. F.; Semenov, A. D.; Gol'tsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Generation and detection of tunable ultrashort infrared and far-infrared radiation pulses of high intensity |
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Journal Article |
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Year |
1992 |
Publication |
Int. J. of Infrared and Millimeter Waves |
Abbreviated Journal |
Int. J. of Infrared and Millimeter Waves |
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13 |
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3 |
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373-380 |
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CO2 IR lasers, FIR |
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We report on generation and detection of intense pulsed radiation with frequency tunability in the infrared and far-infrared spectral regions. Infrared radiation is generated with a transversally electrically excited high pressure CO2 laser. A laser pulse of a total duration of about 300 ns consisted, due to self mode locking, of a series of single pulses, some with pulse durations of less than 450 ps and peak powers larger than 20 MW. Using these pulses for optical with durations less than 400 ps were obtained. For detection a new ultrafast superconducting detector was used. |
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0195-9271 |
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1671 |
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Zubkova, E.; Golikov, A.; An, P.; Kovalyuk, V.; Korneev, A.; Ferrari, S.; Pernice, W.; Goltsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
CWDM demultiplexer using anti-reflection, contra-directional couplers based on silicon nitride rib waveguide |
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Conference Article |
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2019 |
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J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
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1410 |
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012179 |
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coarse wavelength-division multiplexing, Si3N4 rib waveguide |
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We report on the development and fabrication of a 9-channel coarse wavelength-division multiplexing for telecommunication wavelengths (1550 nm) using anti-reflection contra-directional couplers, based on silicon nitride (Si3N4) rib waveguide. The transmitted and reflected spectrum in each channel of the demultiplexer were measured. The average full width at half maximum of the transmitted (reflected) spectra is about 3 nm. |
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1742-6588 |
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1183 |
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Гершензон, Е. М.; Литвак-Горская, Л. Б.; Рабинович, Р. И. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Отрицательное магнитосопротивление в случае проводимости по верхней зоне Хаббарда |
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1983 |
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Физика и техника полупроводников |
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Физика и техника полупроводников |
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17 |
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10 |
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1873-1876 |
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compensated n-InSb, Hubbard upper zone conductivity, negative magnetoresistance |
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1763 |
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Гальперин, Ю. М.; Гершензон, Е. М.; Дричко, И. Л.; Литвак-Горская, Л. Б. |
![find record details (via OpenURL) openurl](img/xref.gif)
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Title |
Кинетические явления в компенсированном n-InSb при низких температурах |
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1990 |
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Физика и техника полупроводников |
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Физика и техника полупроводников |
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24 |
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1 |
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3-24 |
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compensated n-InSb, impurities |
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Представлен обзор результатов цикла исследований природы электропроводности предельно очищенных образцов антимонида индия n-типа. Рассмотрены способы определения концентрации доноров и степени компенсации в этом материале, обсуждается роль свободных и локализованных на донорах электронов в электропроводности при гелиевых температурах. Обсуждение основано на анализе результатов исследования гальваномагнитных явлений, поглощения СВЧ излучения миллиметрового и субмиллиметрового диапазонов и ультразвука. Рассмотрены способы определения характеристик материала на основе комплекса результатов, полученных с помощью указанных методов. Обсуждается также фотопроводимость по примесям в n-InSb. |
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Russian |
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1756 |
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Tikhonov, V. V.; Boyarskii, D. A.; Polyakova, O. N.; Dzardanov, A. L.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Radiophysical and dielectric properties of ore minerals in 12--145 GHz frequency range |
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Journal Article |
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2010 |
Publication |
PIER B |
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PIER B |
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25 |
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349-367 |
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complex permittivity, ore minerals |
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The paper discusses a retrieval technique of complex permittivity of ore minerals in frequency ranges of 12--38 GHz and 77--145 GHz. The method is based on measuring frequency dependencies of transmissivity and reflectivity of plate-parallel mineral samples. In the 12--38 GHz range, the measurements were conducted using a panoramic standing wave ratio and attenuation meter. In the 77--145 GHz range, frequency dependencies of transmissivity and reflectivity were obtained using millimeter-band spectrometer with backward-wave oscillators. The real and imaginary parts of complex permittivity of a mineral were determined solving an equation system for frequency dependencies of transmissivity and reflectivity of an absorbing layer located between two dielectric media. In the course of the work, minerals that are primary ores in iron, zinc, copper and titanium mining were investigated: magnetite, hematite, sphalerite, chalcopyrite, pyrite, and ilmenite. |
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RPLAB @ gujma @ |
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639 |
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