Search Results - "Forchel, Alfred"

Atomically flat single-crystalline gold nanostructures for plasmonic nanocircuitry by Huang, Jer-Shing, Hecht, Bert, Callegari, Victor, Geisler, Peter, Brüning, Christoph, Kern, Johannes, Prangsma, Jord C, Wu, Xiaofei, Feichtner, Thorsten, Ziegler, Johannes, Weinmann, Pia, Kamp, Martin, Forchel, Alfred, Biagioni, Paolo, Sennhauser, Urs

“…Deep subwavelength integration of high-definition plasmonic nanostructures is of key importance in the development of future optical nanocircuitry for…”
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Photon antibunching from a single quantum-dot-microcavity system in the strong coupling regime by Press, David, Götzinger, Stephan, Reitzenstein, Stephan, Hofmann, Carolin, Löffler, Andreas, Kamp, Martin, Forchel, Alfred, Yamamoto, Yoshihisa

“…We observe antibunching in the photons emitted from a strongly coupled single quantum dot and pillar microcavity in resonance. When the quantum dot was…”
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Dynamical d-wave condensation of exciton–polaritons in a two-dimensional square-lattice potential by Kim, Na Young, Kusudo, Kenichiro, Wu, Congjun, Masumoto, Naoyuki, Löffler, Andreas, Höfling, Sven, Kumada, Norio, Worschech, Lukas, Forchel, Alfred, Yamamoto, Yoshihisa

“…Similar to atoms in cold gases, exciton–polaritons in semiconductor microcavities can undergo Bose–Einstein condensation. Now, formation of a condensate in an…”
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Power-law decay of the spatial correlation function in exciton-polariton condensates by Roumpos, Georgios, Lohse, Michael, Nitsche, Wolfgang H, Keeling, Jonathan, Szymańska, Marzena Hanna, Littlewood, Peter B, Löffler, Andreas, Höfling, Sven, Worschech, Lukas, Forchel, Alfred, Yamamoto, Yoshihisa

“…We create a large exciton-polariton condensate and employ a Michelson interferometer setup to characterize the short- and long-distance behavior of the first…”
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Ghost Branch Photoluminescence From a Polariton Fluid Under Nonresonant Excitation by Pieczarka, Maciej, Syperek, Marcin, Dusanowski, Łukasz, Misiewicz, Jan, Langer, Fabian, Forchel, Alfred, Kamp, Martin, Schneider, Christian, Höfling, Sven, Kavokin, Alexey, Sęk, Grzegorz

“…An expanding polariton condensate is investigated under pulsed nonresonant excitation with a small laser pump spot. Far above the condensation threshold we…”
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High-energy side-peak emission of exciton-polariton condensates in high density regime by Horikiri, Tomoyuki, Yamaguchi, Makoto, Kamide, Kenji, Matsuo, Yasuhiro, Byrnes, Tim, Ishida, Natsuko, Löffler, Andreas, Höfling, Sven, Shikano, Yutaka, Ogawa, Tetsuo, Forchel, Alfred, Yamamoto, Yoshihisa

“…In a standard semiconductor laser, electrons and holes recombine via stimulated emission to emit coherent light, in a process that is far from thermal…”
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Free space quantum key distribution over 500 meters using electrically driven quantum dot single-photon sources-a proof of principle experiment by Rau, Markus, Heindel, Tobias, Unsleber, Sebastian, Braun, Tristan, Fischer, Julian, Frick, Stefan, Nauerth, Sebastian, Schneider, Christian, Vest, Gwenaelle, Reitzenstein, Stephan, Kamp, Martin, Forchel, Alfred, Höfling, Sven, Weinfurter, Harald

“…Highly efficient single-photon sources (SPS) can increase the secure key rate of quantum key distribution (QKD) systems compared to conventional attenuated…”
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Direct comparison of catalyst-free and catalyst-induced GaN nanowires by Chèze, Caroline, Geelhaar, Lutz, Brandt, Oliver, Weber, Walter M., Riechert, Henning, Münch, Steffen, Rothemund, Ralph, Reitzenstein, Stephan, Forchel, Alfred, Kehagias, Thomas, Komninou, Philomela, Dimitrakopulos, George P., Karakostas, Theodoros

“…GaN nanowires have been grown by molecular beam epitaxy either catalyst-free or catalyst-induced by means of Ni seeds. Under identical growth conditions of…”
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Gain-induced trapping of microcavity exciton polariton condensates by Roumpos, Georgios, Nitsche, Wolfgang H, Höfling, Sven, Forchel, Alfred, Yamamoto, Yoshihisa

“…We have performed real and momentum space spectroscopy of exciton polariton condensates in a GaAs-based microcavity under nonresonant excitation with an…”
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Optimization of photonic crystal cavity for chemical sensing by Kwon, Soon-Hong, Sünner, Thomas, Kamp, Martin, Forchel, Alfred

“…We optimize photonic crystal cavities for enhancing the sensitivity to environmental changes by finite-difference time-domain method. For the heterostructure…”
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Downconversion quantum interface for a single quantum dot spin and 1550-nm single-photon channel by Pelc, Jason S, Yu, Leo, De Greve, Kristiaan, McMahon, Peter L, Natarajan, Chandra M, Esfandyarpour, Vahid, Maier, Sebastian, Schneider, Christian, Kamp, Martin, Höfling, Sven, Hadfield, Robert H, Forchel, Alfred, Yamamoto, Yoshihisa, Fejer, M M

“…Long-distance quantum communication networks require appropriate interfaces between matter qubit-based nodes and low-loss photonic quantum channels. We…”
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Unconventional Growth Mechanism for Monolithic Integration of III–V on Silicon by Ng, Kar Wei, Ko, Wai Son, Tran, Thai-Truong D, Chen, Roger, Nazarenko, Maxim V, Lu, Fanglu, Dubrovskii, Vladimir G, Kamp, Martin, Forchel, Alfred, Chang-Hasnain, Connie J

“…The heterogeneous integration of III–V optoelectronic devices with Si electronic circuits is highly desirable because it will enable many otherwise…”
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Polarization-independent active metamaterial for high-frequency terahertz modulation by Paul, Oliver, Imhof, Christian, Lägel, Bert, Wolff, Sandra, Heinrich, Jan, Höfling, Sven, Forchel, Alfred, Zengerle, Remigius, Beigang, René, Rahm, Marco

“…We present a polarization-independent metamaterial design for the construction of electrically tunable terahertz (THz) devices. The implemented structure…”
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From polariton condensates to highly photonic quantum degenerate states of bosonic matter by Assmann, Marc, Tempel, Jean-Sebastian, Veit, Franziska, Bayer, Manfred, Rahimi-Iman, Arash, Löffler, Andreas, Höfling, Sven, Reitzenstein, Stephan, Worschech, Lukas, Forchel, Alfred

“…Bose-Einstein condensation (BEC) is a thermodynamic phase transition of an interacting Bose gas. Its key signatures are remarkable quantum effects like…”
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Single photon emission from InGaN/GaN quantum dots up to 50 K by Kremling, Stefan, Tessarek, Christian, Dartsch, Heiko, Figge, Stephan, Höfling, Sven, Worschech, Lukas, Kruse, Carsten, Hommel, Detlef, Forchel, Alfred

“…We have investigated the optical properties of single InGaN quantum dots (QDs) by means of microphotoluminescence (μPL) spectroscopy. The QDs were grown on…”
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Transient Oscillatory Behaviors of Polariton Condensates by Horikiri, Tomoyuki, Kusudo, Kenichiro, Fraser, Michael D., Matsuo, Yasuhiro, Löffler, Andreas, Höfling, Sven, Forchel, Alfred, Yamamoto, Yoshihisa

“…We experimentally studied the transient properties of polariton relaxation dynamics through the oscillatory behavior of an exciton-polariton condensate. The…”
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Pulsed nuclear pumping and spin diffusion in a single charged quantum dot by Ladd, Thaddeus D, Press, David, De Greve, Kristiaan, McMahon, Peter L, Friess, Benedikt, Schneider, Christian, Kamp, Martin, Höfling, Sven, Forchel, Alfred, Yamamoto, Yoshihisa

“…We report the observation of a feedback process between the nuclear spins in a single charged quantum dot under coherently pulsed optical excitation and its…”
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Single-photon emitters based on epitaxial isolated InP/InGaP quantum dots by Ugur, Asli, Kremling, Stefan, Hatami, Fariba, Höfling, Sven, Worschech, Lukas, Forchel, Alfred, Ted Masselink, W.

“…Quantum dots as single-photon sources have several advantages, such as emitting light over a broad spectral range and being photostable. Quantum dots with…”
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Site-controlled InP/GaInP quantum dots emitting single photons in the red spectral range by Baumann, Vasilij, Stumpf, Florian, Schneider, Christian, Kremling, Stefan, Worschech, Lukas, Forchel, Alfred, Höfling, Sven, Kamp, Martin

“…We report on site-controlled growth of InP/GaInP quantum dots (QDs) on GaAs substrates. The QD nucleation sites are defined by shallow nanoholes etched into a…”
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Ultrahigh-Q photonic crystal cavity created by modulating air hole radius of a waveguide by Kwon, Soon-Hong, Sünner, Thomas, Kamp, Martin, Forchel, Alfred

“…We propose an ultrahigh quality factor (Q) photonic crystal slab cavity created by the local modulation of the air hole radius in the waveguide. In the cavity,…”
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