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| Author | Тархов, Михаил Александрович | ||||
| Title | Разработка сверхпроводниковых однофотонных детекторов с повышенной спектральной чувствительностью и быстродействием | Type | Manuscript | ||
| Year | 2016 | Publication | М. НИЦ “Курчатовский институт” | Abbreviated Journal  |
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| Volume | Issue | Pages | 1-103 | ||
| Keywords | SSPD | ||||
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| Address | 123182, Россия, Москва, пл. Академика И. В. Курчатова, 1 | ||||
| Corporate Author | Thesis | Ph.D. thesis | |||
| Publisher | НИЦ "Курчатовский институт" | Place of Publication | Editor | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1064 | |||
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| Author | Тархов, Михаил Александрович | ||||
| Title | Разработка сверхпроводниковых однофотонных детекторов с повышенной спектральной чувствительностью и быстродействием. Автореферат | Type | Manuscript | ||
| Year | 2016 | Publication | М. НИЦ “Курчатовский институт” | Abbreviated Journal |
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| Volume | Issue | Pages | 1-30 | ||
| Keywords | SSPD | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1065 | |||
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| Author | Shcheslavskiy, V.; Morozov, P.; Divochiy, A.; Vakhtomin, Yu.; Smirnov, K.; Becker, W. | ||||
| Title | Ultrafast time measurements by time-correlated single photon counting coupled with superconducting single photon detector | Type | Journal Article | ||
| Year | 2016 | Publication | Rev. Sci. Instrum. | Abbreviated Journal |
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| Volume | 87 | Issue | Pages | 053117 (1 to 5) | |
| Keywords | SSPD, SNSPD, TCSPC, jitter | ||||
| Abstract | Time resolution is one of the main characteristics of the single photon detectors besides quantum efficiency and dark count rate. We demonstrate here an ultrafast time-correlated single photon counting (TCSPC) setup consisting of a newly developed single photon counting board SPC-150NX and a superconducting NbN single photon detector with a sensitive area of 7 × 7 μm. The combination delivers a record instrument response function with a full width at half maximum of 17.8 ps and system quantum efficiency ~5% at wavelength of 1560 nm. A calculation of the root mean square value of the timing jitter for channels with counts more than 1% of the peak value yielded about 7.6 ps. The setup has also good timing stability of the detector–TCSPC board. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1077 | |||
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| Author | Tret'yakov, I. V.; Kaurova, N. S.; Voronov, B. M.; Anfert'ev, V. A.; Revin, L. S.; Vaks, V. L.; Gol'tsman, G. N. | ||||
| Title | The influence of the diffusion cooling on the noise band of the superconductor NbN hot-electron bolometer operating in the terahertz range | Type | Journal Article | ||
| Year | 2016 | Publication | Tech. Phys. Lett. | Abbreviated Journal |
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| Volume | 42 | Issue | 6 | Pages | 563-566 |
| Keywords | HEB, noise bandwidth, conversion gain bandwidth, noise temperature, Andreev reflection | ||||
| Abstract | Results of an experimental study of the noise temperature (Tn) and noise bandwidth (NBW) of the superconductor NbN hot-electron bolometer (HEB) mixer as a function of its temperature (Tb) are presented. It was determined that the NBW of the mixer is significantly wider at temperatures close to the critical ones (Tc) than are values measured at 4.2 K. The NBW of the mixer measured at the heterodyne frequency of 2.5 THz at temperature Tb close to Tc was ~13 GHz, as compared with 6 GHz at Tb = 4.2 K. This experiment clearly demonstrates the limitation of the thermal flow from the NbN bridge at Tb â‰<aa> Tc for mixers manufactured by the in situ technique. This limitation is close in its nature to the Andreev reflection on the superconductor/ metal boundary. In this case, the noise temperature of the studied mixer increased from 1100 to 3800 K. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1106 | |||
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| Author | Shcherbatenko, M.; Tretyakov, I.; Lobanov, Yu.; Maslennikov, S. N.; Kaurova, N.; Finkel, M.; Voronov, B.; Goltsman, G.; Klapwijk, T. M. | ||||
| Title | Nonequilibrium interpretation of DC properties of NbN superconducting hot electron bolometers | Type | Journal Article | ||
| Year | 2016 | Publication | Appl. Phys. Lett. | Abbreviated Journal |
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| Volume | 109 | Issue | 13 | Pages | 132602 |
| Keywords | HEB mixer, contacts | ||||
| Abstract | We present a physically consistent interpretation of the dc electrical properties of niobiumnitride (NbN)-based superconducting hot-electron bolometer mixers, using concepts of nonequilibrium superconductivity. Through this, we clarify what physical information can be extracted from the resistive transition and the dc current-voltage characteristics, measured at suitably chosen temperatures, and relevant for device characterization and optimization. We point out that the intrinsic spatial variation of the electronic properties of disordered superconductors, such as NbN, leads to a variation from device to device. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1107 | |||
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| Author | Столяров, А. В. | ||||
| Title | Программирование. Введение в профессию. Том 1. Азы программирования | Type | Book Whole | ||
| Year | 2016 | Publication | МАКС Пресс | Abbreviated Journal |
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| Volume | Issue | Pages | |||
| Keywords | programming, computer science | ||||
| Abstract | Первый том серии «Программирование: введение в профессию» включает две основные части. В первую часть книги вошли избранные сведения из истории вычислительной техники, обсуждение некоторых областей математики, непосредственно используемых программистами (таких как алгебра логики, комбинаторика, позиционные системы счисления), математических основ программирования (теория вычислимости и теория алгоритмов), принципы построения и функционирования вычислительных систем, начальные сведения о работе с командной строкой ОС Unix. Вторая часть посвящена начальным навыкам составления компьютерных программ на примере Free Pascal под ОС Unix. Материал ориентирован на изучение в будущем языка Си, так что, в частности, много внимания уделено работе с адресами и указателями, построению списков и других динамических структур данных; в то же время многие возможности Паскаля из рассмотрения исключены. Даются сведения о правилах оформления текстов программ, о тестировании и отладке. | ||||
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| Publisher | Place of Publication | Москва | Editor | ||
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| ISSN | ISBN | 978-5-317-05222-5 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1133 | |||
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| Author | Столяров, А. В. | ||||
| Title | Программирование. Введение в профессию. Том 2. Низкоуровневое программирование | Type | Book Whole | ||
| Year | 2016 | Publication | МАКС Пресс | Abbreviated Journal |
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| Volume | Issue | Pages | |||
| Keywords | programming, computer science | ||||
| Abstract | Во второй том книги «Программирование: введение в профессию» вошли её третья и четвёртая части. Третья часть книги посвящена программированию на уровне машинных команд на примере ассемблера NASM. Рассматривается «юзерспейсовская» часть системы команд i386, конвенции системных вызовов Linux/i386 и FreeBSD/i386, изучается макропроцессор, раздельная трансляция и работа компоновщика, приведены сведения об арифметике с плавающей точкой. Четвёртая часть, посвящённая языку Си, включает, кроме собственно описания этого языка, также краткие сведения о библиотеке ncurses; рассказ о том, как использовать компилятор Си без его стандартной библиотеки; дополнительные сведения об инструментах сборки и отладки программ; наконец, в книге приводится краткое описание систем контроля версий CVS и git. | ||||
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| Publisher | Place of Publication | Москва | Editor | ||
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| ISSN | ISBN | 978-5-317-05301-7 | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1134 | |||
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| Author | Krause, S.; Mityashkin, V.; Antipov, S.; Gol'tsman, G.; Meledin, D.; Desmaris, V.; Belitsky, V.; Rudzinski, M. | ||||
| Title | Study of IF bandwidth of NbN hot electron bolometers on GaN buffer layer using a direct measurement method | Type | Conference Article | ||
| Year | 2016 | Publication | Proc. 27th Int. Symp. Space Terahertz Technol. | Abbreviated Journal |
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| Volume | Issue | Pages | 30-32 | ||
| Keywords | NbN HEB, GaN buffer layer | ||||
| Abstract | In this paper, we present a reliable measurement method to study the influence of the GaN buffer layer on phonon-escape time in comparison with commonly used Si substrates and, in consequence, on the IF bandwidth of HEBs. One of the key aspects is to operate the HEB mixer at elevated bath temperatures close to the critical temperature of the NbN ultra-thin film, where contributions from electron-phonon processes and self-heating effects are relatively small, therefore IF roll-off will be governed by the phonon-escape.Two independent experiments were performed at GARD and MSPU on a similar experimental setup at frequencies of approximately 180 and 140 GHz, respectively, and have shown reproducible and consistent results. The entire IF chain was characterized by S-parameter measurements. We compared the measurement results of epitaxial NbN grown onto GaN buffer-layer with Tc of 12.5 K (4.5nm) with high quality polycrystalline NbN films on Si substrate with Tc of 10.5K (5nm) and observed a strong indication of an enhancement of phonon escape to the substrate by a factor of two for the NbN/GaN material combination. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1202 | |||
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| Author | Arutyunov, K. Y.; Ramos-Álvarez, A.; Semenov, A. V.; Korneeva, Y. P.; An, P. P.; Korneev, A. A.; Murphy, A.; Bezryadin, A.; Gol’tsman, G. N. | ||||
| Title | Quasi-1-dimensional superconductivity in highly disordered NbN nanowires | Type | Miscellaneous | ||
| Year | 2016 | Publication | arXiv | Abbreviated Journal |
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| Volume | Issue | Pages | |||
| Keywords | narrow NbN nanowires, BCS | ||||
| Abstract | The topic of superconductivity in strongly disordered materials has attracted a significant attention. In particular vivid debates are related to the subject of intrinsic spatial inhomogeneity responsible for non-BCS relation between the superconducting gap and the pairing potential. Here we report experimental study of electron transport properties of narrow NbN nanowires with effective cross sections of the order of the debated inhomogeneity scales. We find that conventional models based on phase slip concept provide reasonable fits for the shape of the R(T) transition curve. Temperature dependence of the critical current follows the text-book Ginzburg-Landau prediction for quasi-one-dimensional superconducting channel Ic~(1-T/Tc)^3/2. Hence, one may conclude that the intrinsic electronic inhomogeneity either does not exist in our structures, or, if exist, does not affect their resistive state properties. | ||||
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| Notes | Duplicated as 1332 | Approved | no | ||
| Call Number | Serial | 1338 | |||
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| Author | Voss, Chris; Raz, Tahl | ||||
| Title | Never split the difference: negotiating as if your life depended on it | Type | Book Whole | ||
| Year | 2016 | Publication | Abbreviated Journal |
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| Volume | Issue | Pages | |||
| Keywords | business, negotiating, psychology, FBI | ||||
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| Publisher | HarperCollins | Place of Publication | Editor | ||
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| ISSN | ISBN | 978-0-06-240780-1 | Medium | ||
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| Notes | pdf, epub, mp3 (audio book) -- 85 MB in total | Approved | no | ||
| Call Number | Serial | 1838 | |||
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| Author | Pyatkov, Felix; Khasminskaya, Svetlana; Fütterling, Valentin; Fechner, Randy; Słowik, Karolina; Ferrari, Simone; Kahl1, Oliver; Kovalyuk, Vadim; Rath, Patrik; Vetter, Andreas; Flavel, Benjamin S.; Hennrich, Frank; Kappes, Manfred M.; Gol’tsman, Gregory N.; Korneev, Alexander; Rockstuhl, Carsten; Krupke, Ralph; Pernice, Wolfram H. P. | ||||
| Title | Carbon nanotubes as exceptional electrically driven on-chip light sources | Type | Miscellaneous | ||
| Year | 2016 | Publication | 2Physics | Abbreviated Journal |
2Physics |
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| Keywords | carbon nanotubes, CNT | ||||
| Abstract | Carbon nanotubes (CNTs) belong to the most exciting objects of the nanoworld. Typically, around 1 nm in diameter and several microns long, these cylindrically shaped carbon-based structures exhibit a number of exceptional mechanical, electrical and optical characteristics [1]. In particular, they are promising ultra-small light sources for the next generation of optoelectronic devices, where electrical components are interconnected with photonic circuits. Few years ago, we demonstrated that electically driven CNTs can serve as waveguide-integrated light sources [2]. Progress in the field of nanotube sorting, dielectrophoretical site-selective deposition and efficient light coupling into underlying substrate has made CNTs suitable for wafer-scale fabrication of active hybrid nanophotonic devices [2,3]. Recently we presented a nanotube-based waveguide integrated light emitters with tailored, exceptionally narrow emission-linewidths and short response times [4]. This allows conversion of electrical signals into well-defined optical signals directly within an optical waveguide, as required for future on-chip optical communication. Schematics and realization of this device is shown in Figure 1. The devices were manufactured by etching a photonic crystal waveguide into a dielectric layer following electron beam lithography. Photonic crystals are nanostructures that are also used by butterflies to give the impression of color on their wings. The same principle has been used in this study to select the color of light emitted by the CNT. The precise dimensions of the structure were numerically simulated to tailor the properties of the final device. Metallic contacts in the vicinity to the waveguide were fabricated to provide electrical access to CNT emitters. Finally, CNTs, sorted by structural and electronic properties, were deposited from a solution across the waveguide using dielectrophoresis, which is an electric-field-assisted deposition technique. |
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| ISSN | 2372-1782 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved | no | |||
| Call Number | Serial | 1219 | |||
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| Author | Finkel, M.; Thierschmann, H. R.; Galatro, L.; Katan, A. J.; Thoen, D. J.; de Visser, P. J.; Spirito, M.; Klapwijk, T. M. | ||||
| Title | Branchline and directional THz coupler based on PECVD SiNx-technology | Type | Conference Article | ||
| Year | 2016 | Publication | 41st IRMMW-THz | Abbreviated Journal |
41st IRMMW-THz |
| Volume | Issue | Pages | |||
| Keywords | microstrip, fixtures, coplanar waveguides, couplers, standards, probes, dielectrics | ||||
| Abstract | A fabrication technology to realize THz microstrip lines and passive circuit components is developed and tested making use of a plasma-enhanced chemical vapor deposition grown silicon nitride (PECVD SiNx) dielectric membrane. We use 2 μm thick SiNx and 300 nm thick gold layers on sapphire substrates. We fabricate a set of structures for thru-reflect-line (TRL) calibration, with the reflection standard implemented as a short through the via. We find losses of 9.5 dB/mm at 300 GHz for a 50 Ohm line. For a branchline coupler we measure 2.5 dB insertion loss, 1 dB amplitude imbalance and 21 dB isolation. Good control over the THz lines parameters is proven by similar performance of a set of 5 structures. The directional couplers show -14 dB transmission to the coupled port, -24 dB to the isolated port and -25 dB in reflection. The SiNx membrane, used as a dielectric, is compatible with atomic force microscopy (AFM) cantilevers allowing the application of this technology to the development of a THz near-field microscope. | ||||
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| ISSN | 2162-2035 | ISBN | 978-1-4673-8485-8 | Medium | |
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| Notes | Approved | no | |||
| Call Number | 7758586 | Serial | 1295 | ||
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| Author | Iomdina, E. N.; Seliverstov, S.; Sianosyan, A.; Teplyakova, K.; Rusova, A.; Goltsman, G. | ||||
| Title | The prospects of using the radiation for the assessment of corneal and scleral hydration | Type | Abstract | ||
| Year | 2016 | Publication | Acta Ophthalmol. | Abbreviated Journal |
Acta Ophthalmol. |
| Volume | 94 | Issue | Pages | ||
| Keywords | BWO, avalanche transit‐time diode, medicine, biology | ||||
| Abstract | Purpose 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. THz systems creating images in reflected beams are likely to become ideal instruments of noninvasive testing of corneal and scleral hydration degree as THz radiation is highly sensitive to water content. The paper aims at studying the transmittance and reflectance spectra of the cornea and the sclera of rabbit and human eyes, as well as those of the whole rabbit eye, in the frequency range of 0.13–0.32 THz. Methods The experiments were carried out on 3 corneas and 3 rabbit scleras, 2 whole rabbit eyes, and 3 human healthy adult scleras using a specially developed THz system based on reliable and easy‐to‐use continuous wave sources: a backward‐wave oscillator and an avalanche transit‐time diode. Results The transmittance spectra of the cornea and the sclera and the dependence of the reflection coefficient of these tissues in THz range on water percentage content were determined. Comparison of the rabbit cornea hydrated from 73.2% to 76.3% concentration by mass demonstrated an approximately linear relationship between THz reflectivity and water concentration. The decrease of free water concentration by 1% leads to a drop of the reflectance coefficient by 13%. The parameters studied displayed noticeable differences between the sclera and the cornea of rabbits and between rabbit sclera and human sclera. Conclusions Preliminary results demonstrate that the proposed technique, based on continuous THz radiation, may be used to create a device for noninvasive testing of corneal and scleral hydration, which has good potential of wide‐scale practical application. The work was supported by the Russian Foundation of Basic Research (grant No.15‐29‐03843) |
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| ISSN | 1755375X | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1333 | |||
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| Author | Smirnov, K. V.; Divochiy, A. V.; Vakhtomin, Y. B.; Sidorova, M. V.; Karpova, U. V.; Morozov, P. V.; Seleznev, V. A.; Zotova, A. N.; Vodolazov, D. Y. | ||||
| Title | Rise time of voltage pulses in NbN superconducting single photon detectors | Type | Journal Article | ||
| Year | 2016 | Publication | Appl. Phys. Lett. | Abbreviated Journal |
Appl. Phys. Lett. |
| Volume | 109 | Issue | 5 | Pages | 052601 |
| Keywords | SSPD, SNSPD | ||||
| Abstract | We have found experimentally that the rise time of voltage pulse in NbN superconducting single photon detectors increases nonlinearly with increasing the length of the detector L. The effect is connected with dependence of resistance of the detector Rn, which appears after photon absorption, on its kinetic inductance Lk and, hence, on the length of the detector. This conclusion is confirmed by our calculations in the framework of two temperature model. D.Yu.V. acknowledges the support from the Russian Foundation for Basic Research (Project No. 15-42-02365). K.V.S. acknowledges the financial support from the Ministry of Education and Science of the Russian Federation (Contract No. 3.2655.2014/K). |
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| ISSN | 0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1236 | |||
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| Author | Kahl, O.; Ferrari, S.; Kovalyuk, V.; Vetter, A.; Lewes-Malandrakis, G.; Nebel, C.; Korneev, A.; Goltsman, G.; Pernice, W. | ||||
| Title | Spectrally resolved single-photon imaging with hybrid superconducting – nanophotonic circuits | Type | Miscellaneous | ||
| Year | 2016 | Publication | arXiv | Abbreviated Journal |
arXiv |
| Volume | Issue | Pages | 1-20 | ||
| Keywords | waiveguide SSPD, SNSPD, imaging | ||||
| Abstract | The detection of individual photons is an inherently binary mechanism, revealing either their absence or presence while concealing their spectral information. For multi-color imaging techniques, such as single photon spectroscopy, fluorescence resonance energy transfer microscopy and fluorescence correlation spectroscopy, wavelength discrimination is essential and mandates spectral separation prior to detection. Here, we adopt an approach borrowed from quantum photonic integration to realize a compact and scalable waveguide-integrated single-photon spectrometer capable of parallel detection on multiple wavelength channels, with temporal resolution below 50 ps and dark count rates below 10 Hz. We demonstrate multi-detector devices for telecommunication and visible wavelengths and showcase their performance by imaging silicon vacancy color centers in diamond nanoclusters. The fully integrated hybrid superconducting-nanophotonic circuits enable simultaneous spectroscopy and lifetime mapping for correlative imaging and provide the ingredients for quantum wavelength division multiplexing on a chip. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 1334 | |||
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