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Author Feresten, Nancy Laties; Thornton, Jennifer A.; Emmett, Jennifer; Lamichhane, Priyanka; Epstein, Lori; Kiesow, Annette; Olesin, Kate; Hill, Grace (eds) openurl 
  Title Everything: Rocks and Minerals Type Book Whole
  Year 2011 Publication Nat. Geogr. Partners Abbreviated Journal  
  Volume Issue Pages (up) 1-64  
  Keywords children  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor Feresten, Nancy Laties; Thornton, Jennifer A.; Emmett, Jennifer; Lamichhane, Priyanka; Epstein, Lori; Kiesow, Annette; Olesin, Kate; Hill, Grace  
  Language Summary Language Original Title  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1146  
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Author Pentin, I. V.; Smirnov, A. V.; Ryabchun, S. A.; Gol’tsman, G. N.; Vaks, V. L.; Pripolzin, S. I.; Paveliev, D. G. url  doi
openurl 
  Title Heterodyne source of THz range based on semiconductor superlattice multiplier Type Conference Article
  Year 2011 Publication IRMMW-THz Abbreviated Journal IRMMW-THz  
  Volume Issue Pages (up) 1-2  
  Keywords NbN HEB mixer, superlattice  
  Abstract We present the results of our studies of the possibility of developing a heterodyne receiver incorporating a hot-electron bolometer mixer as the detector and a semiconductor superlattice multiplier driven by a reference synthesizer as the local oscillator. We observe that such a local oscillator offers enough power in the terahertz range to pump the HEB into the operating state.  
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  Notes Approved no  
  Call Number 6105209 Serial 1384  
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Author Baek, Burm; Lita, Adriana E.; Verma, Varun; Nam, Sae Woo openurl 
  Title Superconducting a-WxSi1–x nanowire single-photon detector with saturated internal quantum efficiency from visible to 1850 nm Type Journal Article
  Year 2011 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 98 Issue 25 Pages (up) 3  
  Keywords SNSPD  
  Abstract We have developed a single-photon detector based on superconducting amorphous tungsten–silicon alloy (a-WxSi1–x) nanowire. Our device made from a uniform a-WxSi1–x nanowire covers a practical detection area (16 μm×16 μm) and shows high sensitivity featuring a plateau of the internal quantum efficiencies, i.e., efficiencies of generating an electrical pulse per absorbed photon, over a broad wavelength and bias range. This material system for superconducting nanowire detector technology could overcome the limitations of the prevalent nanowire devices based on NbN and lead to more practical, ideal single-photon detectors having high efficiency, low noise, and high count rates.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 665  
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Author Marsili, Francesco; Najafi, Faraz; Herder, Charles; Berggren, Karl K. openurl 
  Title Electrothermal simulation of superconducting nanowire avalanche photodetectors Type Journal Article
  Year 2011 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 98 Issue 9 Pages (up) 3  
  Keywords SNAP  
  Abstract We developed an electrothermal model of NbN superconducting nanowire avalanche photodetectors (SNAPs) on sapphire substrates. SNAPs are single-photon detectors consisting of the parallel connection of N superconducting nanowires. We extrapolated the physical constants of the model from experimental data and we simulated the time evolution of the device resistance, temperature and current by solving two coupled electrical and thermal differential equations describing the nanowires. The predictions of the model were in good quantitative agreement with the experimental results.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 658  
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Author Васильева, И. А.; Компанеец, В. В.; Красная, Ж. А.; Чижикова, З. А. openurl 
  Title Проявление внутримолекулярных вибронных взаимодействий в тонкоструктурных спектрах флуоресценции и возбуждения флуоресценции полиеновых δ-диметиламинокетонов Type Journal Article
  Year 2011 Publication Оптический журнал Abbreviated Journal Опт. ж.  
  Volume 78 Issue 5 Pages (up) 3-8  
  Keywords спектры флуоресценции; вибрационный анализ; адиабатическое гармоническое приближение; бесфононная линия; фононное крыло  
  Abstract Проведен вибрационный анализ спектров флуоресценции и возбуждения флуоресценции, полученных методом Шпольского при 4,2 K. Рассчитаны параметры внутримолекулярных взаимодействий двух δ-диметиламинокетонов. Для определения интегральных интенсивностей вибронных полос в спектрах с тонкой структурой на интенсивном сплошном фоне выполнено моделирование спектров путем представления полосы каждого из вибронных переходов бесфононной линией и фононным крылом с определенными параметрами (полуширинами, фактором Дебая–Валлера). Показано, что нарушение зеркальной симметрии в сопряженных спектрах флуоресценции и возбуждения флуоресценции этих двух соединений может быть обÑŠяснено интерференцией франк-кондоновского и герцберг-теллеровского взаимодействий.  
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  Call Number RPLAB @ gujma @ Serial 721  
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Author Beck, M.; Klammer, M.; Lang, S.; Leiderer, P.; Kabanov, V. V.; Gol'tsman, G. N.; Demsar, J. doi  openurl
  Title Energy-gap dynamics of superconducting NbN thin films studied by time-resolved terahertz spectroscopy Type Journal Article
  Year 2011 Publication Phys. Rev. Lett. Abbreviated Journal Phys. Rev. Lett.  
  Volume 107 Issue 17 Pages (up) 4  
  Keywords NbN thin film, energy gap dynamics  
  Abstract Using time-domain terahertz spectroscopy we performed direct studies of the photoinduced suppression and recovery of the superconducting gap in a conventional BCS superconductor NbN. Both processes are found to be strongly temperature and excitation density dependent. The analysis of the data with the established phenomenological Rothwarf-Taylor model enabled us to determine the bare quasiparticle recombination rate, the Cooper pair-breaking rate and the electron-phonon coupling constant, λ=1.1±0.1, which is in excellent agreement with theoretical estimates.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 641  
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Author Семенов, А. В.; Девятов, И. А.; Третьяков, И. В.; Лобанов, Ю. В.; Ожегов, Р. В.; Петренко, Д. В.; Селиверстов, С. В.; Финкель, М. И. openurl 
  Title Вывод уравнения типа уравнения гинзбурга-ландау для нанопроволоки вблизи критического магнитного поля Type Journal Article
  Year 2011 Publication Журнал радиоэлектроники Abbreviated Journal Ж. радиоэлектроники  
  Volume 11 Issue Pages (up) 4  
  Keywords superconductivity; nanowire; Ginzburg-Landau equation  
  Abstract Nonlinear Ginzburg-Landau equation for dirty supercondicting 1D wire is derived in the limit of high magnetic field.

В пределе больших магнитных полей выведено нелинейное уравнение Гинзбурга-Ландау, описывающее состояние одномерной «грязной» нанопроволоки.		  
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  Call Number RPLAB @ gujma @ Serial 714  
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Author Ikuta, Rikizo; Kusaka, Yoshiaki; Kitano, suyoshi; Kato, Hiroshi; Yamamoto, Takashi; Koashi, Masato; Imoto, Nobuyuki openurl 
  Title Wide-band quantum interface for visible-totelecommunication wavelength conversion Type Journal Article
  Year 2011 Publication Nature Communications Abbreviated Journal Nat. Comm.  
  Volume 2 Issue Pages (up) 5  
  Keywords fromIPMRAS  
  Abstract Although near-infrared photons in telecommunication bands are required for long-distance quantum communication, various quantum information tasks have been performed by using visible photons for the past two decades. Recently, such visible photons from diverse media including atomic quantum memories have also been studied. Optical frequency down-conversion from visible to telecommunication bands while keeping the quantum states is thus required for bridging such wavelength gaps. Here we report demonstration of a quantum interface of frequency down-conversion from visible to telecommunication bands by using a nonlinear crystal, which has a potential to work over wide bandwidths, leading to a high-speed interface of frequency conversion. We achieved the conversion of a picosecond visible photon at 780 nm to a 1,522-nm photon, and observed that the conversion process retained entanglement between the down-converted photon and another photon.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 764  
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Author Kono, Junichiro openurl 
  Title Coherent terahertz control Type Journal Article
  Year 2011 Publication Nature Photonics Abbreviated Journal Nat. Photon.  
  Volume 5 Issue Pages (up) 5-6  
  Keywords fromIPMRAS  
  Abstract Spin and charge terahertz excitations in solids are promising for implementing future technologies such as spintronics and quantum computation, but coherently controlling them has been a significant challenge. Researchers have now manipulated coherent spin waves in an antiferromagnet using the intense magnetic field of ultrashort terahertz pulses.  
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  Call Number RPLAB @ gujma @ Serial 773  
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Author Buchanan, Mark openurl 
  Title Nothing's impossible Type Manuscript
  Year 2011 Publication Nature Physics Abbreviated Journal Nat. Phys.  
  Volume 7 Issue Pages (up) 5  
  Keywords fromIPMRAS  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 839  
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