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Author Yates, S. J. C.; Baryshev, A. M.; Baselmans, J. J. A.; Klein, B.; Güsten, R. openurl 
  Title (up) Fast Fourier transform spectrometer readout for large arrays of microwave kinetic inductance detectors Type Journal Article
  Year 2009 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 95 Issue 4 Pages 3  
  Keywords  
  Abstract Microwave kinetic inductance detectors have great potential for large, very sensitive detector arrays for use in, for example, submillimeter imaging. Being intrinsically readout in the frequency domain, they are particularly suited for frequency domain multiplexing allowing ~1000 s of devices to be readout with one pair of coaxial cables. However, this moves the complexity of the detector from the cryogenics to the warm electronics. We present here the concept and experimental demonstration of the use of fast Fourier transform spectrometer readout, showing no deterioration of the noise performance compared to the low noise analog mixing while allowing high multiplexing ratios.  
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  Call Number RPLAB @ gujma @ Serial 697  
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Author Stevens, M.; Hadfield, R.; Schwall, R.; Nam, S.W.; Mirin, R.; Gupta, J. doi  openurl
  Title (up) Fast lifetime measurements of infrared emitters using a low-jitter superconduct- ing single-photon detector Type Journal Article
  Year 2006 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 89 Issue Pages 031109  
  Keywords SSPD, jitter, QD, QW  
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  Notes Approved no  
  Call Number RPLAB @ akorneev @ Serial 611  
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Author Hocker, L. O.; Sokoloff, D. R.; Daneu, V.; Szoke, A.; Javan, A. openurl 
  Title (up) 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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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 742  
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Author Zwiller, V.; Aichele, T.; Seifert, W.; Persson, J.; Benson, O. url  doi
openurl 
  Title (up) Generating visible single photons on demand with single InP quantum dots Type Journal Article
  Year 2003 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 82 Issue 10 Pages 1509-1511  
  Keywords single photon, quantum dot, InP  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 503  
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Author An, Zhenghua; Chen, Jeng-Chung; Ueda, T.; Komiyama, S.; Hirakawa, K. openurl 
  Title (up) 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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  Notes Approved no  
  Call Number RPLAB @ akorneev @ Serial 603  
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Author Sekine, Norihiko; Hosako, Iwao openurl 
  Title (up) Intensity modulation of terahertz quantum cascade lasers under external light injection Type Journal Article
  Year 2009 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 95 Issue Pages 201106(1-3)  
  Keywords QCL modulation, THz, terahertz  
  Abstract We investigated the light-current characteristics of terahertz (THz) quantum cascade lasers under external light injection, which excites interband transitions in the active materials. It was found that the amount of reduction in the THz power was constant for all injection currents above threshold, and the dependence of the reduction amount on the wavelength of the external light was observed to show a resonancelike feature. The dominant intensity modulation mechanism was found to be the loss change caused by interband transitions in the active region. Further, the effective coupling efficiency plays an important role in the intensity modulation.  
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  Notes Approved no  
  Call Number Serial 630  
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Author Walther, Christoph; Scalari, Giacomo; Faist, Jerome; Beere, Harvey; Ritchie, David openurl 
  Title (up) Low frequency terahertz quantum cascade laser operating from 1.6 to 1.8 THz Type Journal Article
  Year 2006 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 89 Issue Pages 231121(1-3)  
  Keywords QCL, 360 uW at 1.6 THz  
  Abstract The authors report a GaAs/Al0.1Ga0.9As quantum cascade laser based on a bound-to-continuum transition optimized for low frequency operation. High tunability of the gain curve is achieved by the Stark effect and laser emission is measured between 1.6 and 1.8 THz. Pulsed mode operation up to 95 K and continuous wave operation up to 80 K are reported. The dynamical range in current is as high as 43%.  
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  Notes Approved no  
  Call Number Serial 629  
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Author Dorenbos, S. N.; Reiger, E. M.; Perinetti, U.; Zwiller, V.; Zijlstra, T.; Klapwijk, T. M. url  doi
openurl 
  Title (up) 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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  ISSN 0003-6951 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 436  
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Author Gaggero, A.; Nejad, S. Jahanmiri; Marsili, F.; Mattioli, F.; Leoni, R.; Bitauld, D.; Sahin, D.; Hamhuis, G. J.; Nötzel, R.; Sanjines, R.; Fiore, A. openurl 
  Title (up) 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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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 681  
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Author Siddiqi, I.; Prober, D. E. url  doi
openurl 
  Title (up) Nb–Au bilayer hot-electron bolometers for low-noise THz heterodyne detection Type Journal Article
  Year 2004 Publication Applied Physics Letters Abbreviated Journal Appl. Phys. Lett.  
  Volume 84 Issue 8 Pages 1404  
  Keywords HEB, mixers, dynamic range, saturation, LO power, local oscillator power, Nb  
  Abstract The sensitivity of present Nb diffusion-cooled hot-electron bolometer (HEB) mixers is not quantum limited, and can be improved by reducing the superconducting transition temperature TC. Lowering TC reduces thermal fluctuations, resulting in a decrease of the mixer noise temperature TM. However, lower TC mixers have reduced dynamic range and saturate more easily due to background noise. We present 30 GHz microwave measurements on a bilayer HEB system, Nb–Au, in which TC can be tuned with Au layer thickness to obtain the maximum sensitivity for a given noise background. These measurements are intended as a guide for the optimization of THz mixers. Using a Nb–Au mixer with TC = 1.6 K, we obtain TM = 50 K with 2 nW of local oscillator (LO) power. Good mixer performance is observed over a wide range of LO power and bias voltage and such a device should not exhibit saturation in a THz receiver.  
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  ISSN 0003-6951 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 571  
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