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Author Ito, Hiroshi openurl 
  Title High frequency photodiode work in Japan Type Manuscript
  Year 2002 Publication Report at NTT photonics laboratories Abbreviated Journal  
  Volume Issue Pages 1-4  
  Keywords THz, terahertz communications, photodiode  
  Abstract The recent progress in the device performance of the uni-traveling-carrier photodiode (UTC-PD) is described. The UTC-PD utilizes only electrons as the active carriers, and this unique feature is the key to achieving excellent high-speed and high-output characteristics simultaneously. The achieved performance includes a record 3-dB bandwidth of 310 GHz, high-power photonic millimeter-wave generation with an output power of over +13 dBm at 100 GHz, high-output-voltage photoreceiver operation at bit rates of up to 80 Gbit/s, and demultiplexing operation at 200 Gbit/s using a monolithic PD-EAM optical gate.  
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  Notes Approved no  
  Call Number Serial 596  
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Author Deang, Jennifer; Du, Qiang; Gunzburger, Max D. openurl 
  Title Modeling and computation of random thermal fluctuations and material defects in the Ginzburg–Landau model for superconductivity Type Journal Article
  Year 2002 Publication J. Comp. Phys. Abbreviated Journal  
  Volume 181 Issue 1 Pages 45-67  
  Keywords noise; superconductivity; finite element methods; fluctuations.  
  Abstract It is well known that thermal fluctuations and material impurities affect the motion of vortices in superconductors. These effects are modeled by variants of a time-dependent Ginzburg-Landau model containing either additive or multiplicative noise. Numerical computations are presented that illustrate the effects that noise has on the dynamics of vortex nucleation and vortex motion. For an additive noise model with relatively low variances, it is found that the vortices form a quasi-steady-state lattice in which the vortex core sizes remain roughly fixed but their positions vibrate. Two multiplicative noise models are considered. For one model having relatively long-range order, the sizes of the vortex cores vary in time and from one vortex to another. Finally, for the additive noise case, we show that as the variance of the noise tends to zero, solutions of the stochastic time-dependent Ginzburg-Landau equations converge to solutions of the corresponding equations with no noise.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial 758  
Permanent link to this record
 
 
Author Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. url  doi
openurl 
  Title Optical control of photon tunneling through an array of nanometer-scale cylindrical channels Type Journal Article
  Year 2002 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 66 Issue 20 Pages 205414_1-205414_5  
  Keywords optical mixing  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1098-0121 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 499  
Permanent link to this record
 
 
Author Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. url  doi
openurl 
  Title Electromechanical noise in a diffusive conductor Type Journal Article
  Year 2002 Publication Phys. Rev. Lett. Abbreviated Journal Phys. Rev. Lett.  
  Volume 88 Issue 22 Pages  
  Keywords  
  Abstract Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator.  
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  ISSN 0031-9007 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 433  
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Author Gisin, Nicolas; Ribordy, Grégoire; Tittel, Wolfgang; Zbinden, Hugo url  doi
openurl 
  Title Quantum cryptography Type Journal Article
  Year 2002 Publication Reviews of Modern Physics Abbreviated Journal Rev. Mod. Phys.  
  Volume 74 Issue 1 Pages 145-195  
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  ISSN 0034-6861 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 506  
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Author Colombelli, R url  doi
openurl 
  Title FIR quantum cascade lasers at λ>20 μm and THz emitters at λ=80 μm Type Journal Article
  Year 2002 Publication Phys. E: Low-dimensional Systems and Nanostructures Abbreviated Journal  
  Volume 13 Issue 2-4 Pages 848-853  
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  ISSN 1386-9477 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 483  
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Author Uzawa, Y.; Miki, S.; Wang, Z.; Kawakami, A.; Kroug, M.; Yagoubov, P.; Kollberg, E. url  doi
openurl 
  Title Performance of a quasi-optical NbN hot-electron bolometric mixer at terahertz frequencies Type Journal Article
  Year 2002 Publication Superconductor Science and Technology Abbreviated Journal Supercond. Sci. Technol.  
  Volume 15 Issue 1 Pages 141-145  
  Keywords HEB, mixer  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0953-2048 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number RPLAB @ s @ Serial 548  
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Author Semenov, Alexei D; Gol'tsman, Gregory N; Sobolewski, Roman url  doi
openurl 
  Title Hot-electron effect in superconductors and its applications for radiation sensors Type Journal Article
  Year 2002 Publication Superconductor Science and Technology Abbreviated Journal Supercond. Sci. Technol.  
  Volume 15 Issue 4 Pages R1-R16  
  Keywords HEB, SSPD  
  Abstract The paper reviews the main aspects of nonequilibrium hot-electron phenomena in superconductors and various theoretical models developed to describe the hot-electron effect. We discuss implementation of the hot-electron avalanche mechanism in superconducting radiation sensors and present the most successful practical devices, such as terahertz mixers and direct intensity detectors, for far-infrared radiation. Our presentation also includes the novel approach to hot-electron quantum detection implemented in superconducting x-ray to optical photon counters.  
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  ISSN 0953-2048 ISBN Medium  
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  Notes Approved no  
  Call Number Serial 416  
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Author Ediss, G. A.; Koller, D. url  openurl
  Title 68.5 to 118 GHz measurements of possible infrared filter materials: black polyethylene, Zitex, and grooved and un-grooved fluorogold and HDPE Type Miscellaneous
  Year 2002 Publication ALMA Memo Abbreviated Journal  
  Volume Issue 412 Pages  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 446  
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Author Omar, A.; Anantharamaiah, K. R.; Rupen, M.; Rigby, J. url  doi
openurl 
  Title VLA detection of OH absorption from the elliptical galaxy NGC 1052 Type Journal Article
  Year 2002 Publication Astron. Astrophys. Abbreviated Journal A&A  
  Volume 381 Issue 1 Pages L29-L32  
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  Series Volume Series Issue Edition  
  ISSN 0004-6361 ISBN Medium  
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  Notes Approved no  
  Call Number RPLAB @ s @ Serial 435  
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