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Author (up) An, Zhenghua; Chen, Jeng-Chung; Ueda, T.; Komiyama, S.; Hirakawa, K.
Title Infrared phototransistor using capacitively coupled two-dimensional electron gas layers Type Journal Article
Year 2005 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 86 Issue Pages 172106 - 172106-3
Keywords 2DEG
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Call Number RPLAB @ akorneev @ Serial 603
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Author (up) Baek, Burm; Lita, Adriana E.; Verma, Varun; Nam, Sae Woo
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 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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Call Number RPLAB @ gujma @ Serial 665
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Author (up) Barends, R.; Hajenius, M.; Gao, J. R.; Klapwijk, T. M.
Title Current-induced vortex unbinding in bolometer mixers Type Journal Article
Year 2005 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 87 Issue Pages 263506 (1 to 3)
Keywords HEB mixer numerical model, HEB model, IV-curves, vortex-antivortex, Berezinskii–Kosterlitz–Thouless theory, diffusion cooling channel, diffusion channel, distributed HEB model, distributed model, self-heating effect, temperature profile
Abstract We present a description of the current-voltage characteristics of hot electron bolometers in terms of the current-dependent intrinsic resistive transition of NbN films. We find that, by including this current dependence, we can correctly predict the complete current-voltage characteristics, showing excellent agreement with measurements for both low and high bias and for small as well as large devices. It is assumed that the current dependence is due to vortex-antivortex unbinding as described in the Berezinskii–Kosterlitz–Thouless theory. The presented approach will be useful in guiding device optimization for noise and bandwidth.
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Call Number Serial 604
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Author (up) Burke, P. J.; Schoelkopf, R. J.; Prober, D. E.; Skalare, A.; Karasik, B. S.; Gaidis, M. C.; McGrath, W. R.; Bumble, B.; Leduc, H. G.
Title Spectrum of thermal fluctuation noise in diffusion and phonon cooled hot-electron mixers Type Journal Article
Year 1998 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 72 Issue 12 Pages 1516-1518
Keywords HEB mixer; thermal fluctuation noise; TFN
Abstract A systematic study of the intermediate frequency noise bandwidth of Nb thin-film superconducting hot-electron bolometers is presented. We have measured the spectrum of the output noise as well as the conversion efficiency over a very broad intermediate frequency range (from 0.1 to 7.5 GHz) for devices varying in length from 0.08 μm to 3 μm. Local oscillator and rf signals from 8 to 40 GHz were used. For a device of a given length, the spectrum of the output noise and the conversion efficiency behave similarly for intermediate frequencies less than the gain bandwidth, in accordance with a simple thermal model for both the mixing and thermal fluctuation noise. For higher intermediate frequencies the conversion efficiency decreases; in contrast, the noise decreases but has a second contribution which dominates at higher frequency. The noise bandwidth is larger than the gain bandwidth, and the mixer noise is low, between 120 and 530 K (double side band).
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Call Number RPLAB @ gujma @ Serial 760
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Author (up) Cao, Q.; Yoon, S. F.; Tong, C. Z.; Ngo, C. Y.; Liu, C. Y.; Wang, R.; Zhao, H. X.
Title Two-state competition in 1.3 μm multilayer InAs/InGaAs quantum dot lasers Type Journal Article
Year 2009 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 95 Issue 19 Pages 3
Keywords 2DEG
Abstract The competition of ground state (GS) and excited state (ES) is investigated from the as-grown and thermally annealed 1.3 μm ten-layer p-doped InAs/GaAs quantum dot (QD) lasers. The modal gain competition between GS and ES are measured and analyzed around the ES threshold characteristics. Our results show that two-state competition is more significant in devices with short cavity length operating at high temperature. By comparing the as-grown and annealed devices, we demonstrate enhanced GS and suppressed ES lasing from the QD laser annealed at 600 °C for 15 s.
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Call Number RPLAB @ gujma @ Serial 673
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Author (up) Dorenbos, S. N.; Reiger, E. M.; Perinetti, U.; Zwiller, V.; Zijlstra, T.; Klapwijk, T. M.
Title Low noise superconducting single photon detectors on silicon Type Journal Article
Year 2008 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 93 Issue 13 Pages 131101
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Call Number RPLAB @ s @ Serial 436
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Author (up) Floet, D. Wilms; Baselmans, J. J. A.; Klapwijk, T. M.; Gao, J. R.
Title Resistive transition of niobium superconducting hot-electron bolometer mixers Type Journal Article
Year 1998 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 73 Issue 19 Pages 2826
Keywords HEB
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Call Number Serial 543
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Author (up) Fu, K.; Zannoni, R.; Chan, C.; Adams, S. H.; Nicholson, J.; Polizzi, E.; Yngvesson, K. S.
Title Terahertz detection in single wall carbon nanotubes Type Journal Article
Year 2008 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 92 Issue 3 Pages 033105
Keywords HEB, single wall, carbon nanotube, CNT, SWNT, SWCNT, terahertz detection, THz
Abstract It is reported that terahertz radiation from 0.69 to 2.54 THz has been sensitively detected in a device consisting of bundles of carbon nanotubes containing single wall metallic carbon nanotubes, quasioptically coupled through a lithographically fabricated antenna, and a silicon lens. The measured data are consistent with a bolometric detection process in the metallic tubes and the devices show promise for operation well above 4.2 K.
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Notes NEP is not shown Approved no
Call Number Serial 566
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Author (up) Gaggero, A.; Nejad, S. Jahanmiri; Marsili, F.; Mattioli, F.; Leoni, R.; Bitauld, D.; Sahin, D.; Hamhuis, G. J.; Nötzel, R.; Sanjines, R.; Fiore, A.
Title Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications Type Journal Article
Year 2010 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 97 Issue 15 Pages 3
Keywords SSPD
Abstract We demonstrate efficient nanowire superconducting single photon detectors (SSPDs) based on NbN thin films grown on GaAs. NbN films ranging from 3 to 5 nm in thickness have been deposited by dc magnetron sputtering on GaAs substrates at 350 °C. These films show superconducting properties comparable to similar films grown on sapphire and MgO. In order to demonstrate the potential for monolithic integration, SSPDs were fabricated and measured on GaAs/AlAs Bragg mirrors, showing a clear cavity enhancement, with a peak quantum efficiency of 18.3% at λ = 1300 nm and T = 4.2 K.
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Call Number RPLAB @ gujma @ Serial 681
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Author (up) Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M.
Title Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers Type Journal Article
Year 2001 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 79 Issue 15 Pages 2483-2485
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Call Number Serial 311
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Author (up) Hadfield, Robert. H.; Habif, Jonathan L.; Schlafer, John; Schwall, Robert. E.; Nam, Sae Woo
Title Quantum key distribution at 1550 nm with twin superconducting single-photon detectors Type Journal Article
Year 2006 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 89 Issue 24 Pages 241129
Keywords SSPD, quantum cryptography
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Call Number Serial 533
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Author (up) Hocker, L. O.; Sokoloff, D. R.; Daneu, V.; Szoke, A.; Javan, A.
Title Frequency mixing in the infrared and far-infrared using a metal-to-metal point contact diode Type Journal Article
Year 1968 Publication Applied Physics Letters Abbreviated Journal Appl Phys Lett
Volume 12 Issue 12 Pages
Keywords optical antennas
Abstract Metal‐to‐metal point contact diodes were used to obtain the 54‐GHz beat notes between two adjacent 10.6‐μ CO2 laser transitions. The speed of the diodes in the far‐infrared is at least 1000 GHz. This was tested with a 337‐μ HCN laser.
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Call Number RPLAB @ gujma @ Serial 742
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Author (up) Hoevers, H. F. C.; Bento, A. C.; Bruijn, M. P.; Gottardi, L.; Korevaar, M. A. N.; Mels, W. A.; de Korte, P. A. J.
Title Thermal fluctuation noise in a voltage biased superconducting transition edge thermometer Type Journal Article
Year 2000 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 77 Issue 26 Pages 4421-4424
Keywords TES; bolometer; thermal fluctuation noise; TFN
Abstract The current noise at the output of a microcalorimeter with a voltage biased superconducting transition edge thermometer is studied in detail. In addition to the two well-known noise sources: thermal fluctuation noise from the heat link to the bath and Johnson noise from the resistive thermometer, a third noise source strongly correlated with the steepness of the thermometer is required to fit the measured noise spectra. Thermal fluctuation noise, originating in the thermometer itself, fully explains the additional noise. A simple model provides quantitative agreement between the observed and calculated noise spectra for all bias points in the superconducting transition.
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Call Number RPLAB @ gujma @ Serial 759
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Author (up) Karasik, B. S.; Elantiev, A. I.
Title Noise temperature limit of a superconducting hot-electron bolometer mixer Type Journal Article
Year 1996 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 68 Issue 6 Pages 853-855
Keywords HEB mixer noise temperature, Johnson noise, thermal fluctuation noise, noise bandwidth
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Call Number Serial 260
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Author (up) Karasik, B. S.; Il'in, K. S.; Pechen, E. V.; Krasnosvobodtsev, S. I.
Title Diffusion cooling mechanism in a hot-electron NbC microbolometer mixer Type Journal Article
Year 1996 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.
Volume 68 Issue 16 Pages 2285-2287
Keywords HEB mixer, diffusion cooling channel, diffusion channel
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Call Number Serial 262
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