Now showing items 1-15 of 15

  • 220GHz wideband 3D imaging radar for concealed object detection technology development and phenomenology studies 

    Robertson, Duncan Alexander; Macfarlane, David Graham; Bryllert, Tomas (SPIE-The International Society for Optical Engineering, 2016-05-12) - Conference item
    We present a 220 GHz 3D imaging ‘Pathfinder’ radar developed within the EU FP7 project CONSORTIS (Concealed Object Stand-Off Real-Time Imaging for Security) which has been built to address two objectives: (i) to de-risk ...
  • 94 GHz pulsed coherent radar for high power amplifier evaluation 

    Robertson, Duncan Alexander; Hunter, Robert Iain; Gallacher, Thomas (SPIE-The International Society for Optical Engineering, 2016-05-12) - Conference item
    We present the design and characterization of a 94 GHz pulsed coherent radar to be used for the evaluation and demonstration of novel wideband, high power vacuum tube amplifier technology. The radar is designed to be fully ...
  • Absence of giant spin splitting in the two-dimensional electron liquid at the surface of SrTiO3 (001) 

    McKeown Walker, S; Riccò, S; Bruno, F Y; de la Torre, A; Tamai, A; Golias, E; Varykhalov, A; Marchenko, D; Hoesch, M; Bahramy, M S; King, Philip David; Sánchez-Barriga, J; Baumberger, F (2016-06-22) - Journal article
    We reinvestigate the putative giant spin splitting at the surface of SrTiO3 reported by Santander-Syro et al. [Nature Mat. 13, 1085 (2014)]. Our spin- and angle-resolved photoemission experiments on fractured (001) oriented ...
  • Efficient single photon collection using a μ-fiber-coupled microcavity 

    Lee, Chang Min; Lim, Hee Jin; Schneider, Christian; Maier, Sebastian; Höfling, Sven; Kamp, Martin; Lee, Yong Hee (IEEE, 2016-01-07) - Conference item
    Efficient single photon collection is demonstrated based on a μ-fiber-coupled photonic crystal cavity. 249 kHz of single photons are detected, and estimated single photon count rate (overall collection efficiency) is 20 ...
  • Enhanced nonlinear refractive index in ε-near-zero materials 

    Caspani, L; Kaipurath, R P M; Clerici, M; Ferrera, M; Roger, T; Kim, J; Kinsey, N; Pietrzyk, Monika; Di Falco, Andrea; Shalaev, V M; Boltasseva, A; Faccio, D (2016-06-10) - Journal item
    New propagation regimes for light arise from the ability to tune the dielectric permittivity to extremely low values. Here we demonstrate a universal approach based on the low linear permittivity values attained in the ...
  • Facilitating a well-founded approach to autonomic systems 

    Dobson, Simon (IEEE Computer Society, 2008-04) - Conference item
    While it is desirable for all computing and communications systems to have well-defined and verifiable behaviour, autonomic systems must additionally guarantee that their adaptive behaviour is correct, both in the sense ...
  • Giant photon bunching, superradiant pulse emission, and excitation trapping in quantum-dot nanolasers 

    Jahnke, Frank; Gies, Christopher; Aßmann, Marc; Bayer, Manfred; Leymann, H A M; Foerster, Alexander; Wiersig, Jan; Schneider, Christian; Kamp, Martin; Hoefling, Sven (2016-05-10) - Journal article
    Light is often characterized only by its classical properties, like intensity or coherence. When looking at its quantum properties, described by photon correlations, new information about the state of the matter generating ...
  • High-energy side-peak emission of exciton-polariton condensates in high density regime 

    Horikiri, Tomoyuki; Yamaguchi, Makoto; Kamide, Kenji; Matsuo, Yasuhiro; Byrnes, Tim; Ishida, Natsuko; Löffler, Andreas; Hoefling, Sven; Shikano, Yutaka; Ogawa, Tetsuo; Forchel, Alfred; Yamamoto, Yoshihisa (2016-05-19) - Journal article
    In a standard semiconductor laser, electrons and holes recombine via stimulated emission to emit coherent light, in a process that is far from thermal equilibrium. Exciton-polariton condensates -- sharing the same basic ...
  • Holographic optical traps for atom-based topological Kondo devices 

    Buccheri, Francesco; Bruce, Graham David; Trombettoni, Andrea; Cassettari, Donatella; Babujian, Hrachya; Korepin, Vladimir E; Sodano, Pasquale (2016-07-14) - Journal article
    The topological Kondo (TK) model has been proposed in solid-state quantum devices as a way to realize non-Fermi liquid behaviors in a controllable setting. Another motivation behind the TK model proposal is the demand to ...
  • Millimeter wave imaging at up to 40 frames per second using an optoelectronic photo-injected Fresnel zone plate lens antenna 

    Robertson, Duncan Alexander; Gallacher, Thomas; Sondena, Rune; Macfarlane, David Graham (SPIE-The International Society for Optical Engineering, 2016-05-12) - Conference item
    Optoelectronic methods are promising for rapid and highly reconfigurable beam steering across the microwave to the terahertz range. In particular, the photo-injected Fresnel zone plate antenna (piFZPA) offers high speed, ...
  • Mode-Switching induced super-thermal bunching in quantum-dot microlasers 

    Redlich, Christoph; Lingnau, Benjamin; Holzinger, Steffen; Schlottmann, Elisabeth; Kreinberg, Soren; Schneider, Christian; Kamp, Martin; Höfling, Sven; Wolters, Janik; Reitzenstein, Stephan; Ludge, Kathy (2016-06) - Journal article
    The super-thermal photon bunching in quantum-dot micropillar lasers is investigated both experimentally and theoretically via simulations driven by dynamic considerations. Using stochastic multi-mode rate equations we ...
  • Nuclear Energy in the UK : A Review 

    McCauley, Darren Andrew; Heffron, Raphael; North, Pete; Plater, Andy (International Energy Justice Council, 2013-09-01) - Report
  • Second generation of AVTIS FMCW millimeter wave radars for mapping volcanic terrain 

    MacFarlane, David Graham; Robertson, Duncan Alexander; Cassidy, Scott Lindsay (SPIE-The International Society for Optical Engineering, 2016-05-12) - Conference item
    The second generation AVTIS ground-based millimeter wave instruments designed for monitoring topography of volcanic lava domes are solid state 94 GHz FMCW rastered, real beam radars operating at ranges of up to ~7 km with ...
  • Spin-valley locking in the normal state of a transition-metal dichalcogenide superconductor 

    Bawden, Lewis; Cooil, S. P.; Riley, Jonathon Mark; Collins-McIntyre, Liam James; Sunko, Veronika; Hunvik, K.; Leandersson, M.; Polley, C. M.; Balasubramanian, T.; Kim, T. K.; Hoesch, M.; Wells, J. W.; Balakrishnan, G.; Bahramy, M. S.; King, Philip David (2016-05-23) - Journal article
    Metallic transition-metal dichalcogenides (TMDCs) are benchmark systems for studying and controlling intertwined electronic orders in solids, with superconductivity developing from a charge density-wave state. The interplay ...
  • Submillimetre wave 3D imaging radar for security applications 

    Robertson, Duncan Alexander; MacFarlane, David Graham; Cassidy, Scott Lindsay; Bryllert, Tomas; Gandini, Erio; Llombart, Nuria (2016-03-31) - Conference paper
    There is ongoing worldwide interest in finding solutions to enhance the security of civilians at airports, borders and high risk public areas in ways which are safe, ethical and streamlined. One promising approach is to ...