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Ожегов, Р.В.; Окунев, О.В.; Гольцман, Г.Н. |
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Title |
Флуктуационная чувствительность сверхпроводящего болометрического смесителя на эффекте разогрева электронного газа |
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Journal Article |
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2009 |
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Радиотехника |
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3 |
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120-124 |
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смеситель на горячих электронах; флуктуационная чувствительность; тепловизор терагерцевого диапазона частот; hot-electron bolometer mixer; Imaging system; Noise equivalent temperature difference; Heterodyne receiver; Terahertz range |
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Abstract |
Interest in research in the terahertz range is driven by a great number of various applications, where terahertz instruments may play a leading role. To name just a few, such applications include study of the cosmic microwave background radiation and the distribution of the dark matter, medicine, navigation, fire alarm, security systems and environmental monitoring. The paper discusses the possibility of using a receiver based on the hot-electron effect in superconducting films as an imaging system. We present the results of the noise equivalent temperature difference (NETD) measurements performed with a hot-electron bolometer mixer made from a thin superconducting film. The receiver with a noise temperature of ~ 3800 K at a local oscillator frequency of 300 GHz a bandwidth of 500 MHz and an integration time of 1 s has offered an NETD of 0.5 K. We have also developed a technique that enabled us to reduce the contribution of the mixer gain fluctuations to the overall system instability. As of this writing, the above value of the NETD is the lowest value offered for this type of receiver, which indicates the possibility to use such receivers in real-time imaging systems. The technique offered in the paper for achieving the limiting value of the NETD offers an alternative to the phase-locking scheme.
Представены результаты измерения флуктуационной чувствительности (NETD – noise equivalent temperature difference) болометрического смесителя на эффекте разогрева электронного газа в тонких сверхпроводящих пленках. Получено предельное значение NETD, равное 0,5 К, при шумовой температуре приемника 3800 К, ширине полосы преобразования 500 МГц, постоянной времени 1 с и частоте гетеродина 300 ГГц. Разработана методика достижения предельной флуктуационной чувствительности, позволяющая избежать влияния нестабильности коэффициента преобразования смесителя. |
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RPLAB @ gujma @ |
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728 |
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Гольцман, Г.Н.; Лудков, Д.Н. |
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Title |
Сверхпроводниковые смесители на горячих электронах терагерцового диапазона и их применение в радиоастрономии |
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2003 |
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Изв. высших учебных заведений. Радиофизика |
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46 |
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8/9 |
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HEB, mixers |
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russian |
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RPLAB @ s @ |
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473 |
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Каурова, Н. С.; Финкель, М. И.; Масленников, С. Н.; Вахтомин, Ю. Б.; Антипов, С. В.; Смирнов, К. В.; Воронов, Б. М.; Гольцман, Г. Н.; Ильин, К. С. |
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Смеситель субмиллиметрового диапазона длин волн на основе тонкой пленки YBa2Cu3O7-x |
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Conference Article |
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2004 |
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1-я международная конференция Фундаментальные проблемы высокотемпературной сверхпроводимости |
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291 |
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Москва-Звенигород |
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Москва-Звенигород |
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russian |
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RPLAB @ s @ htsmix_zvenigorod_2004_rus |
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356 |
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Финкель, М. И.; Масленников, С. Н.; Гольцман, Г. Н. |
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Title |
Концепция приёмного комплекса космического радиотелескопа «Миллиметрон» |
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2007 |
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Известия высших учебных заведений. Радиофизика |
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50 |
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10-11 |
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924-934 |
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RPLAB @ s @ mix_review_2007_rus |
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410 |
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Масленников, С. Н.; Вахтомин, Ю. Б.; Антипов, С. В.; Смирнов, К. В.; Каурова, Н. С.; Гришина, Е. В.; Воронов, Б. М.; Гольцман, Г. Н. |
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Смесители на основе электронного разогрева в тонких пленках NbN для частот 2.5 и 3.8 ТГц |
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Conference Article |
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2004 |
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Десятая всероссийская научная конференция студентов-физиков и молодых ученых (ВНКСФ-10) |
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russian |
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Duplicated as 349 |
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RPLAB @ s @ qoheb_vnksf10_2004_rus |
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350 |
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Ожегов, Р. В.; Масленников, С. Н.; Морозов, Д. В.; Окунев, О. В.; Смирнов, К. В.; Гольцман, Г. Н. |
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Тепловизор субмиллиметрового диапазона длин волн |
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Conference Article |
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2004 |
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Десятая всероссийская научная конференция студентов-физиков и молодых ученых (ВНКСФ-10) |
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Duplicated as 347 |
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RPLAB @ s @ thzimaging_vnksf10_2004_rus |
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348 |
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Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. |
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Сверхпроводящие однофотонные детекторы с разрешением числа фотонов |
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Conference Article |
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2009 |
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Науч. сессия МИФИ |
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Науч. сессия МИФИ |
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47-58 |
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PNR SSPD, SNSPD |
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978-5-7262-1042-1 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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RPLAB @ sasha @ елезов2009сверхпроводящие |
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1029 |
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Елезов, М. С.; Тархов, М. А.; Дивочий, А. В.; Вахтомин, Ю. Б.; Гольцман, Г. Н. |
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Title |
Система регистрации одиночных фотонов в видимом и ближнем инфракрасном диапазонах |
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2010 |
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Науч. сессия НИЯУ МИФИ |
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94-95 |
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SSPD |
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978-5-7262-1227-2 |
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RPLAB @ sasha @ елезов2010система |
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1032 |
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