TY - JOUR AU - Allgaier, Markus AU - Ansari, Vahid AU - Eigner, Christof AU - Quiring, Viktor AU - Ricken, Raimund AU - Donohue, John Matthew AU - Czerniuk, Thomas AU - Aßmann, Marc AU - Bayer, Manfred AU - Brecht, Benjamin AU - Silberhorn, Christine ID - 21029 JF - Applied Physics Letters SN - 0003-6951 TI - Streak camera imaging of single photons at telecom wavelength VL - 112 ER - TY - JOUR AU - Liu, Ning AU - Steinrück, Hans-Georg AU - Osvet, Andres AU - Yang, Yuyun AU - Schmuki, Patrik ID - 23630 JF - Applied Physics Letters SN - 0003-6951 TI - Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage VL - 110 ER - TY - JOUR AU - Lafont, O. AU - Luk, S. M. H. AU - Lewandowski, P. AU - Kwong, N. H. AU - Leung, P. T. AU - Galopin, E. AU - Lemaitre, A. AU - Tignon, J. AU - Schumacher, Stefan AU - Baudin, E. AU - Binder, R. ID - 13361 JF - Applied Physics Letters SN - 0003-6951 TI - Controlling the optical spin Hall effect with light ER - TY - JOUR AU - Layes, V. AU - Monje, S. AU - Corbella, C. AU - Trieschmann, J. AU - de los Arcos de Pedro, Maria Teresa AU - von Keudell, A. ID - 22568 JF - Applied Physics Letters SN - 0003-6951 TI - Species transport on the target during high power impulse magnetron sputtering ER - TY - JOUR AU - Atorf, B. AU - Rasouli, H. AU - Nordendorf, G. AU - Wilkes, D. AU - Kitzerow, Heinz-Siegfried ID - 39674 IS - 8 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Near infrared Kerr effect and description of field-induced phase transitions in polymer-stabilized blue phase liquid crystals VL - 108 ER - TY - JOUR AB - We report the fabrication of periodically poled domain patterns in x-cut lithium niobate thin-film. Here, thin films on insulator have drawn particular attention due to their intrinsic waveguiding properties offering high mode confinement and smaller devices compared to in-diffused waveguides in bulk material. In contrast to z-cut thin film lithium niobate, the x-cut geometry does not require back electrodes for poling. Further, the x-cut geometry grants direct access to the largest nonlinear and electro-optical tensor element, which overall promises smaller devices. The domain inversion was realized via electric field poling utilizing deposited aluminum top electrodes on a stack of LN thin film/SiO2 layer/Bulk LN, which were patterned by optical lithography. The periodic domain inversion was verified by non-invasive confocal second harmonic microscopy. Our results show domain patterns in accordance to the electrode mask layout. The second harmonic signatures can be interpreted in terms of spatially, overlapping domain filaments which start their growth on the þz side. AU - Mackwitz, P. AU - Rüsing, Michael AU - Berth, Gerhard AU - Widhalm, A. AU - Müller, K. AU - Zrenner, Artur ID - 4237 IS - 15 JF - Applied Physics Letters SN - 0003-6951 TI - Periodic domain inversion in x-cut single-crystal lithium niobate thin film VL - 108 ER - TY - JOUR AU - Jostmeier, Thorben AU - Wecker, Tobias AU - Reuter, Dirk AU - As, Donat Josef AU - Betz, Markus ID - 7217 IS - 21 JF - Applied Physics Letters SN - 0003-6951 TI - Ultrafast carrier dynamics and resonant inter-miniband nonlinearity of a cubic GaN/AlN superlattice VL - 107 ER - TY - JOUR AU - Chen, J. C. H. AU - Klochan, O. AU - Micolich, A. P. AU - Das Gupta, K. AU - Sfigakis, F. AU - Ritchie, D. A. AU - Trunov, K. AU - Reuter, Dirk AU - Wieck, A. D. AU - Hamilton, A. R. ID - 7221 IS - 18 JF - Applied Physics Letters SN - 0003-6951 TI - Fabrication and characterisation of gallium arsenide ambipolar quantum point contacts VL - 106 ER - TY - JOUR AB - We report about the fabrication and analysis of high Q photonic crystal cavities with metallic Schottky-contacts. The structures are based on GaAs n-i membranes with an InGaAs quantum well in the i-region and nanostructured low ohmic metal top-gates. They are designed for photocurrent readout within the cavity and fast electric manipulations. The cavity structures are characterized by photoluminescence and photocurrent spectroscopy under resonant excitation. We find strong cavity resonances in the photocurrent spectra and surprisingly high Q-factors up to 6500. Temperature dependent photocurrent measurements in the region between 4.5K and 310K show an exponential enhancement of the photocurrent signal and an external quantum efficiency up to 0.26. AU - Quiring, W. AU - Al-Hmoud, M. AU - Rai, A. AU - Reuter, Dirk AU - Wieck, A. D. AU - Zrenner, Artur ID - 4331 IS - 4 JF - Applied Physics Letters SN - 0003-6951 TI - Photonic crystal cavities with metallic Schottky contacts VL - 107 ER - TY - JOUR AB - We use a picosecond acoustics technique to modulate the laser output of electrically pumped GaAs/AlAs micropillar lasers with InGaAs quantum dots. The modulation of the emission wavelength takes place on the frequencies of the nanomechanical extensional and breathing (radial) modes of the micropillars. The amplitude of the modulation for various nanomechanical modes is different for every micropillar which is explained by a various elastic contact between the micropillar walls and polymer environment. AU - Czerniuk, T. AU - Tepper, J. AU - Akimov, A. V. AU - Unsleber, S. AU - Schneider, C. AU - Kamp, M. AU - Höfling, S. AU - Yakovlev, D. R. AU - Bayer, M. ID - 6524 IS - 4 JF - Applied Physics Letters SN - 0003-6951 TI - Impact of nanomechanical resonances on lasing from electrically pumped quantum dot micropillars VL - 106 ER - TY - JOUR AU - Wahle, Markus AU - Kitzerow, Heinz-Siegfried ID - 39689 IS - 20 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Electrically tunable zero dispersion wavelengths in photonic crystal fibers filled with a dual frequency addressable liquid crystal VL - 107 ER - TY - JOUR AU - Repp, J. AU - Schinner, G. J. AU - Schubert, E. AU - Rai, A. K. AU - Reuter, Dirk AU - Wieck, A. D. AU - Wurstbauer, U. AU - Kotthaus, J. P. AU - Holleitner, A. W. ID - 7224 IS - 24 JF - Applied Physics Letters SN - 0003-6951 TI - Confocal shift interferometry of coherent emission from trapped dipolar excitons VL - 105 ER - TY - JOUR AU - Buß, J. H. AU - Rudolph, J. AU - Shvarkov, S. AU - Semond, F. AU - Reuter, Dirk AU - Wieck, A. D. AU - Hägele, D. ID - 7259 IS - 9 JF - Applied Physics Letters SN - 0003-6951 TI - Magneto-optical studies of Gd-implanted GaN: No spin alignment of conduction band electrons VL - 103 ER - TY - JOUR AB - Whispering gallery modes (WGMs) were observed in 60 nm thin cubic AlN microdisk resonators containing a single layer of non-polar cubic GaN quantum dots. Freestanding microdisks were patterned by means of electron beam lithography and a two step reactive ion etching process. Micro-photoluminescence spectroscopy investigations were performed for optical characterization. We analyzed the mode spacing for disk diameters ranging from 2-4 lm. Numerical investigations using three dimensional finite difference time domain calculations were in good agreement with the experimental data. Whispering gallery modes of the radial orders 1 and 2 were identified by means of simulated mode field distributions. AU - Bürger, M. AU - Ruth, M. AU - Declair, S. AU - Förstner, Jens AU - Meier, Cedrik AU - As, Donat Josef ID - 3963 IS - 8 JF - Applied Physics Letters KW - tet_topic_qd KW - tet_topic_microdisk SN - 0003-6951 TI - Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots VL - 102 ER - TY - JOUR AU - Vollbrecht, Joachim AU - Kasdorf, Olga AU - Quiring, Viktor AU - Suche, Hubertus AU - Bock, Harald AU - Kitzerow, Heinz-Siegfried ID - 39719 IS - 4 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Microresonator-enhanced electroluminescence of an organic light emitting diode based on a columnar liquid crystal VL - 103 ER - TY - JOUR AU - Li, Ming-Fei AU - Zhang, Yu-Ran AU - Liu, Xue-Feng AU - Yao, Xu-Ri AU - Luo, Kai Hong AU - Fan, Heng AU - Wu, Ling-An ID - 26066 JF - Applied Physics Letters SN - 0003-6951 TI - A double-threshold technique for fast time-correspondence imaging ER - TY - JOUR AU - Höpfner, Henning AU - Fritsche, Carola AU - Ludwig, Arne AU - Ludwig, Astrid AU - Stromberg, Frank AU - Wende, Heiko AU - Keune, Werner AU - Reuter, Dirk AU - Wieck, Andreas D. AU - Gerhardt, Nils C. AU - Hofmann, Martin R. ID - 7301 IS - 11 JF - Applied Physics Letters SN - 0003-6951 TI - Magnetic field dependence of the spin relaxation length in spin light-emitting diodes VL - 101 ER - TY - JOUR AU - Beckel, Andreas AU - Zhou, Daming AU - Marquardt, Bastian AU - Reuter, Dirk AU - Wieck, Andreas D. AU - Geller, Martin AU - Lorke, Axel ID - 7312 IS - 23 JF - Applied Physics Letters SN - 0003-6951 TI - Momentum matching in the tunneling between 2-dimensional and 0-dimensional electron systems VL - 100 ER - TY - JOUR AU - Schwan, A. AU - Varwig, S. AU - Greilich, A. AU - Yakovlev, D. R. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bayer, M. ID - 7313 IS - 23 JF - Applied Physics Letters SN - 0003-6951 TI - Non-resonant optical excitation of mode-locked electron spin coherence in (In,Ga)As/GaAs quantum dot ensemble VL - 100 ER - TY - JOUR AU - Huang, J. AU - Chen, Y. S. AU - Ludwig, A. AU - Reuter, Dirk AU - Wieck, A. D. AU - Bacher, G. ID - 7327 IS - 13 JF - Applied Physics Letters SN - 0003-6951 TI - Electron-nuclei spin coupling in GaAs—Free versus localized electrons VL - 100 ER - TY - JOUR AU - Chen, J. C. H. AU - Wang, D. Q. AU - Klochan, O. AU - Micolich, A. P. AU - Das Gupta, K. AU - Sfigakis, F. AU - Ritchie, D. A. AU - Reuter, Dirk AU - Wieck, A. D. AU - Hamilton, A. R. ID - 7330 IS - 5 JF - Applied Physics Letters SN - 0003-6951 TI - Fabrication and characterization of ambipolar devices on an undoped AlGaAs/GaAs heterostructure VL - 100 ER - TY - JOUR AU - Kröger, Philipp AU - Ruth, Marcel AU - Weber, Nils AU - Meier, Cedrik ID - 7491 IS - 26 JF - Applied Physics Letters SN - 0003-6951 TI - Carrier localization in ZnO quantum wires VL - 100 ER - TY - JOUR AU - Ehiasarian, A. P. AU - Hecimovic, A. AU - de los Arcos de Pedro, Maria Teresa AU - New, R. AU - Schulz-von der Gathen, V. AU - Böke, M. AU - Winter, J. ID - 22599 JF - Applied Physics Letters SN - 0003-6951 TI - High power impulse magnetron sputtering discharges: Instabilities and plasma self-organization ER - TY - JOUR AU - Atorf, B. AU - Hoischen, A. AU - Ros, M. B. AU - Gimeno, N. AU - Tschierske, C. AU - Dantlgraber, G. AU - Kitzerow, Heinz-Siegfried ID - 39729 IS - 22 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Switching performance of a polymer-stabilized antiferroelectric liquid crystal based on bent-core molecules VL - 100 ER - TY - JOUR AU - Schmidtke, Jürgen AU - Jünnemann, Gisela AU - Keuker-Baumann, Susanne AU - Kitzerow, Heinz-Siegfried ID - 39728 IS - 5 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Electrical fine tuning of liquid crystal lasers VL - 101 ER - TY - JOUR AU - Marquardt, B. AU - Beckel, A. AU - Lorke, A. AU - Wieck, A. D. AU - Reuter, Dirk AU - Geller, M. ID - 7697 IS - 22 JF - Applied Physics Letters SN - 0003-6951 TI - The influence of charged InAs quantum dots on the conductance of a two-dimensional electron gas: Mobility vs. carrier concentration VL - 99 ER - TY - JOUR AU - Buchholz, Sven S. AU - Kunze, Ulrich AU - Reuter, Dirk AU - Wieck, Andreas D. AU - Fischer, Saskia F. ID - 7710 IS - 10 JF - Applied Physics Letters SN - 0003-6951 TI - Mode-filtered electron injection into a waveguide interferometer VL - 98 ER - TY - JOUR AU - Chen, Y. S. AU - Huang, J. AU - Reuter, Dirk AU - Ludwig, A. AU - Wieck, A. D. AU - Bacher, G. ID - 7711 IS - 8 JF - Applied Physics Letters SN - 0003-6951 TI - Optically detected nuclear magnetic resonance in n-GaAs using an on-chip microcoil VL - 98 ER - TY - JOUR AU - Soldat, Henning AU - Li, Mingyuan AU - Gerhardt, Nils C. AU - Hofmann, Martin R. AU - Ludwig, Arne AU - Ebbing, Astrid AU - Reuter, Dirk AU - Wieck, Andreas D. AU - Stromberg, Frank AU - Keune, Werner AU - Wende, Heiko ID - 7311 IS - 5 JF - Applied Physics Letters SN - 0003-6951 TI - Room temperature spin relaxation length in spin light-emitting diodes VL - 99 ER - TY - JOUR AU - Lorenz, Alexander AU - Kitzerow, Heinz-Siegfried ID - 39735 IS - 24 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Efficient electro-optic switching in a photonic liquid crystal fiber VL - 98 ER - TY - JOUR AU - Lei, W. AU - Notthoff, C. AU - Lorke, A. AU - Reuter, Dirk AU - Wieck, A. D. ID - 7975 IS - 3 JF - Applied Physics Letters SN - 0003-6951 TI - Electronic structure of self-assembled InGaAs/GaAs quantum rings studied by capacitance-voltage spectroscopy VL - 96 ER - TY - JOUR AU - Lei, W. AU - Notthoff, C. AU - Lorke, A. AU - Reuter, Dirk AU - Wieck, A. D. ID - 7980 IS - 3 JF - Applied Physics Letters SN - 0003-6951 TI - Electronic structure of self-assembled InGaAs/GaAs quantum rings studied by capacitance-voltage spectroscopy VL - 96 ER - TY - JOUR AU - Csontos, M. AU - Komijani, Y. AU - Shorubalko, I. AU - Ensslin, K. AU - Reuter, Dirk AU - Wieck, A. D. ID - 7982 IS - 2 JF - Applied Physics Letters SN - 0003-6951 TI - Nanostructures in p-GaAs with improved tunability VL - 97 ER - TY - JOUR AU - Wiemann, M. AU - Wieser, U. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 7983 IS - 6 JF - Applied Physics Letters SN - 0003-6951 TI - Full-wave rectification based upon hot-electron thermopower VL - 97 ER - TY - JOUR AU - Mehta, M. AU - Reuter, Dirk AU - Wieck, A. D. AU - Michaelis de Vasconcellos, S. AU - Zrenner, A. AU - Meier, C. ID - 7990 IS - 14 JF - Applied Physics Letters SN - 0003-6951 TI - An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting diode VL - 97 ER - TY - JOUR AB - We have integrated individual (In,Ga)As quantum dots (QDs) using site-controlled molecular beam epitaxial growth into the intrinsic region of a p-i-n junction diode. This is achieved using an in situ combination of focused ion beam prepatterning, annealing, and overgrowth, resulting in arrays of individually electrically addressable (In,Ga)As QDs with full control on the lateral position. Using microelectroluminescence spectroscopy we demonstrate that these QDs have the same optical quality as optically pumped Stranski–Krastanov QDs with random nucleation located in proximity to a doped interface. The results suggest that this technique is scalable and highly interesting for different applications in quantum devices. AU - Mehta, M. AU - Reuter, Dirk AU - Wieck, A. D. AU - Michaelis de Vasconcellos, S. AU - Zrenner, Artur AU - Meier, Cedrik ID - 4550 IS - 14 JF - Applied Physics Letters SN - 0003-6951 TI - An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting diode VL - 97 ER - TY - JOUR AB - A heterojunction field-effect transistor (HFET) was fabricated of nonpolar cubic AlGaN/GaN grown on Ar+ implanted 3C–SiC (001) by molecular beam epitaxy. The device shows a clear field effect at positive bias voltages with V_th=0.6 V. The HFET output characteristics were calculated using ATLAS simulation program. The electron channel at the cubic AlGaN/GaN interface was detected by room temperature capacitance-voltage measurements. AU - Tschumak, E. AU - Granzner, R. AU - Lindner, Jörg AU - Schwierz, F. AU - Lischka, K. AU - Nagasawa, H. AU - Abe, M. AU - As, Donald ID - 4194 IS - 25 JF - Applied Physics Letters SN - 0003-6951 TI - Nonpolar cubic AlGaN/GaN heterojunction field-effect transistor on Ar+ implanted 3C–SiC (001) VL - 96 ER - TY - JOUR AU - Buchholz, S. S. AU - Fischer, S. F. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 7973 IS - 2 JF - Applied Physics Letters SN - 0003-6951 TI - Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring VL - 94 ER - TY - JOUR AU - Buchholz, S. S. AU - Fischer, S. F. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8579 JF - Applied Physics Letters SN - 0003-6951 TI - Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring ER - TY - JOUR AU - Blokland, J. H. AU - Bozkurt, M. AU - Ulloa, J. M. AU - Reuter, Dirk AU - Wieck, A. D. AU - Koenraad, P. M. AU - Christianen, P. C. M. AU - Maan, J. C. ID - 8580 JF - Applied Physics Letters SN - 0003-6951 TI - Ellipsoidal InAs quantum dots observed by cross-sectional scanning tunneling microscopy ER - TY - JOUR AU - Marquardt, B. AU - Geller, M. AU - Lorke, A. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8585 JF - Applied Physics Letters SN - 0003-6951 TI - Using a two-dimensional electron gas to study nonequilibrium tunneling dynamics and charge storage in self-assembled quantum dots ER - TY - JOUR AU - Lei, W. AU - Offer, M. AU - Lorke, A. AU - Notthoff, C. AU - Meier, Cedrik AU - Wibbelhoff, O. AU - Wieck, A. D. ID - 7640 IS - 19 JF - Applied Physics Letters SN - 0003-6951 TI - Probing the band structure of InAs∕GaAs quantum dots by capacitance-voltage and photoluminescence spectroscopy VL - 92 ER - TY - JOUR AU - Lo, F.-Y. AU - Melnikov, A. AU - Reuter, Dirk AU - Cordier, Y. AU - Wieck, A. D. ID - 8603 JF - Applied Physics Letters SN - 0003-6951 TI - Magnetotransport in Gd-implanted wurtzite GaN∕AlxGa1−xN high electron mobility transistor structures ER - TY - JOUR AU - Hohage, P. E. AU - Nannen, J. AU - Halm, S. AU - Bacher, G. AU - Wahle, M. AU - Fischer, S. F. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8607 JF - Applied Physics Letters SN - 0003-6951 TI - Coherent spin dynamics in Permalloy-GaAs hybrids at room temperature ER - TY - JOUR AU - Hövel, S. AU - Gerhardt, N. C. AU - Hofmann, M. R. AU - Lo, F.-Y. AU - Reuter, Dirk AU - Wieck, A. D. AU - Schuster, E. AU - Keune, W. AU - Wende, H. AU - Petracic, O. AU - Westerholt, K. ID - 8608 JF - Applied Physics Letters SN - 0003-6951 TI - Electrical detection of photoinduced spins both at room temperature and in remanence ER - TY - JOUR AU - Hövel, S. AU - Gerhardt, N. C. AU - Hofmann, M. R. AU - Lo, F.-Y. AU - Ludwig, A. AU - Reuter, Dirk AU - Wieck, A. D. AU - Schuster, E. AU - Wende, H. AU - Keune, W. AU - Petracic, O. AU - Westerholt, K. ID - 8609 JF - Applied Physics Letters SN - 0003-6951 TI - Room temperature electrical spin injection in remanence ER - TY - JOUR AU - Hoischen, A. AU - Benning, S. A. AU - Kitzerow, Heinz-Siegfried ID - 39749 IS - 13 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Submicrometer periodic patterns fixed by photopolymerization of dissipative structures VL - 93 ER - TY - JOUR AU - Redler, Andreas AU - Kitzerow, Heinz-Siegfried ID - 39751 IS - 18 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Influence of doping on the photorefractive properties of a polymer-dispersed liquid crystal VL - 93 ER - TY - JOUR AU - Han, Xiao-Feng AU - Weng, Yu-Xiang AU - Wang, Rui AU - Chen, Xi-Hao AU - Luo, Kai Hong AU - Wu, Ling-An AU - Zhao, Jimin ID - 26076 JF - Applied Physics Letters SN - 0003-6951 TI - Single-photon level ultrafast all-optical switching ER - TY - JOUR AU - Rockstuhl, Carsten AU - Lederer, Falk AU - Zentgraf, Thomas AU - Giessen, Harald ID - 1761 IS - 15 JF - Applied Physics Letters SN - 0003-6951 TI - Enhanced transmission of periodic, quasiperiodic, and random nanoaperture arrays VL - 91 ER - TY - JOUR AU - Meier, Cedrik AU - Hennessy, Kevin ID - 7644 IS - 14 JF - Applied Physics Letters SN - 0003-6951 TI - Technique for tilting GaAs photonic crystal nanocavities out of plane VL - 90 ER - TY - JOUR AU - Lo, F.-Y. AU - Melnikov, A. AU - Reuter, Dirk AU - Wieck, A. D. AU - Ney, V. AU - Kammermeier, T. AU - Ney, A. AU - Schörmann, J. AU - Potthast, S. AU - As, D. J. AU - Lischka, K. ID - 8630 JF - Applied Physics Letters SN - 0003-6951 TI - Magnetic and structural properties of Gd-implanted zinc-blende GaN ER - TY - JOUR AU - Mehta, M. AU - Reuter, Dirk AU - Melnikov, A. AU - Wieck, A. D. AU - Remhof, A. ID - 8632 JF - Applied Physics Letters SN - 0003-6951 TI - Focused ion beam implantation induced site-selective growth of InAs quantum dots ER - TY - JOUR AB - The authors report the synthesis of nanoporous ZnO, which exhibits a periodically ordered, uniform pore system with crystalline pore walls. The crystalline structure is investigated by x-ray diffraction, transmission electron microscopy, and selected area electron diffraction. The large specific surface area and the uniformity of the pore system are confirmed by nitrogen physisorption. Raman spectroscopy along with low-temperature photoluminescence measurements confirms the high degree of crystallinity and gives insight into defects participating in the radiative recombination processes. The authors thank Günter Koch for recording the TEM images and Marie-Luise Wolff for valuable help in the laboratory one of the authors (M.T.) thanks Michael Fröba for the continuous support. AU - Waitz, T. AU - Tiemann, Michael AU - Klar, P. J. AU - Sann, J. AU - Stehr, J. AU - Meyer, B. K. ID - 25986 JF - Applied Physics Letters SN - 0003-6951 TI - Crystalline ZnO with an enhanced surface area obtained by nanocasting ER - TY - JOUR AU - Scharnberg, M. AU - Zaporojtchenko, V. AU - Adelung, R. AU - Faupel, F. AU - Pannemann, C. AU - Diekmann, T. AU - Hilleringmann, Ulrich ID - 39561 IS - 1 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Tuning the threshold voltage of organic field-effect transistors by an electret encapsulating layer VL - 90 ER - TY - JOUR AU - Meier, Cedrik AU - Hennessy, Kevin AU - Haberer, Elaine D. AU - Sharma, Rajat AU - Choi, Yong-Seok AU - McGroddy, Kelly AU - Keller, Stacia AU - DenBaars, Steven P. AU - Nakamura, Shuji AU - Hu, Evelyn L. ID - 7651 IS - 3 JF - Applied Physics Letters SN - 0003-6951 TI - Visible resonant modes in GaN-based photonic crystal membrane cavities VL - 88 ER - TY - JOUR AU - Knop, M. AU - Wieser, U. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8648 JF - Applied Physics Letters SN - 0003-6951 TI - Ballistic rectification in an asymmetric mesoscopic cross junction ER - TY - JOUR AU - Schmidt, R. AU - Scholz, U. AU - Vitzethum, M. AU - Fix, R. AU - Metzner, C. AU - Kailuweit, P. AU - Reuter, Dirk AU - Wieck, A. AU - Hübner, M. C. AU - Stufler, S. AU - Zrenner, A. AU - Malzer, S. AU - Döhler, G. H. ID - 8654 JF - Applied Physics Letters SN - 0003-6951 TI - Fabrication of genuine single-quantum-dot light-emitting diodes ER - TY - JOUR AU - Stavarache, V. AU - Reuter, Dirk AU - Wieck, A. D. AU - Schwab, M. AU - Yakovlev, D. R. AU - Oulton, R. AU - Bayer, M. ID - 8665 JF - Applied Physics Letters SN - 0003-6951 TI - Control of quantum dot excitons by lateral electric fields ER - TY - JOUR AU - Hohage, P. E. AU - Bacher, G. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8671 JF - Applied Physics Letters SN - 0003-6951 TI - Coherent spin oscillations in bulk GaAs at room temperature ER - TY - JOUR AU - Thomas, Andy AU - Meyners, Dirk AU - Ebke, Daniel AU - Liu, Ning-Ning AU - Sacher, Marc AU - Schmalhorst, Jan AU - Reiss, Günter AU - Ebert, Hubert AU - Hütten, Andreas ID - 29684 IS - 1 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Inverted spin polarization of Heusler alloys for spintronic devices VL - 89 ER - TY - JOUR AU - Choi, Y.-S. AU - Hennessy, K. AU - Sharma, R. AU - Haberer, E. AU - Gao, Y. AU - DenBaars, S. P. AU - Nakamura, S. AU - Hu, E. L. AU - Meier, Cedrik ID - 7653 IS - 24 JF - Applied Physics Letters SN - 0003-6951 TI - GaN blue photonic crystal membrane nanocavities VL - 87 ER - TY - JOUR AU - Lüttjohann, Stephan AU - Meier, Cedrik AU - Lorke, Axel AU - Reuter, Dirk AU - Wieck, Andreas D. ID - 7654 IS - 16 JF - Applied Physics Letters SN - 0003-6951 TI - Screening effects in InAs quantum-dot structures observed by photoluminescence and capacitance-voltage spectra VL - 87 ER - TY - JOUR AU - David, A. AU - Meier, Cedrik AU - Sharma, R. AU - Diana, F. S. AU - DenBaars, S. P. AU - Hu, E. AU - Nakamura, S. AU - Weisbuch, C. AU - Benisty, H. ID - 7655 IS - 10 JF - Applied Physics Letters SN - 0003-6951 TI - Photonic bands in two-dimensionally patterned multimode GaN waveguides for light extraction VL - 87 ER - TY - JOUR AU - Sharma, R. AU - Haberer, E. D. AU - Meier, Cedrik AU - Hu, E. L. AU - Nakamura, S. ID - 7656 IS - 5 JF - Applied Physics Letters SN - 0003-6951 TI - Vertically oriented GaN-based air-gap distributed Bragg reflector structure fabricated using band-gap-selective photoelectrochemical etching VL - 87 ER - TY - JOUR AU - Chakraborty, Arpan AU - Keller, Stacia AU - Meier, Cedrik AU - Haskell, Benjamin A. AU - Keller, Salka AU - Waltereit, Patrick AU - DenBaars, Steven P. AU - Nakamura, Shuji AU - Speck, James S. AU - Mishra, Umesh K. ID - 7659 IS - 3 JF - Applied Physics Letters SN - 0003-6951 TI - Properties of nonpolar a-plane InGaN∕GaN multiple quantum wells grown on lateral epitaxially overgrown a-plane GaN VL - 86 ER - TY - JOUR AU - Reuter, Dirk AU - Werner, C. AU - Wieck, A. D. AU - Petrosyan, S. ID - 8679 JF - Applied Physics Letters SN - 0003-6951 TI - Depletion characteristics of two-dimensional lateral p‐n-junctions ER - TY - JOUR AU - Müller, T. AU - Würtz, A. AU - Lorke, A. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8683 JF - Applied Physics Letters SN - 0003-6951 TI - Wave-form sampling using a driven electron ratchet in a two-dimensional electron system ER - TY - JOUR AU - Gerhardt, N. C. AU - Hövel, S. AU - Brenner, C. AU - Hofmann, M. R. AU - Lo, F.-Y. AU - Reuter, Dirk AU - Wieck, A. D. AU - Schuster, E. AU - Keune, W. AU - Westerholt, K. ID - 8685 JF - Applied Physics Letters SN - 0003-6951 TI - Electron spin injection into GaAs from ferromagnetic contacts in remanence ER - TY - JOUR AU - Lüttjohann, Stephan AU - Meier, Cedrik AU - Lorke, Axel AU - Reuter, Dirk AU - Wieck, Andreas D. ID - 8690 JF - Applied Physics Letters SN - 0003-6951 TI - Screening effects in InAs quantum-dot structures observed by photoluminescence and capacitance-voltage spectra ER - TY - JOUR AU - Grbić, Boris AU - Leturcq, Renaud AU - Ensslin, Klaus AU - Reuter, Dirk AU - Wieck, Andreas D. ID - 8691 JF - Applied Physics Letters SN - 0003-6951 TI - Single-hole transistor in p-type GaAs∕AlGaAs heterostructures ER - TY - JOUR AU - Höink, V. AU - Sacher, Marc AU - Schmalhorst, J. AU - Reiss, G. AU - Engel, D. AU - Junk, D. AU - Ehresmann, A. ID - 29691 IS - 15 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Postannealing of magnetic tunnel junctions with ion-bombardment-modified exchange bias VL - 86 ER - TY - JOUR AU - Matthias, Heinrich AU - Röder, Thorsten AU - Wehrspohn, Ralf B. AU - Kitzerow, Heinz-Siegfried AU - Matthias, Sven AU - Picken, Stephen J. ID - 39764 IS - 24 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Spatially periodic liquid crystal director field appearing in a photonic crystal template VL - 87 ER - TY - JOUR AU - Mertens, G. AU - Wehrspohn, R. B. AU - Kitzerow, Heinz-Siegfried AU - Matthias, S. AU - Jamois, C. AU - Gösele, U. ID - 39767 IS - 24 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Tunable defect mode in a three-dimensional photonic crystal VL - 87 ER - TY - JOUR AU - Paelke, Lutz AU - Kitzerow, Heinz-Siegfried AU - Strohriegl, Peter ID - 39768 IS - 3 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Photorefractive polymer-dispersed liquid crystal based on a photoconducting polysiloxane VL - 86 ER - TY - JOUR AB - A microscopic model is used to analyze gain and loss properties of (GaIn)(NAs)∕GaAs quantum wells in the 1.3–1.55μm range, including Auger and radiative recombination. The calculations show that, as long as good material quality can be achieved, growing highly compressively strained samples is preferable due to their specific band structure properties. Optimum laser operation is possible slightly above a peak gain of 1000cm−1 ⁠. AU - Schlichenmaier, C. AU - Thränhardt, A. AU - Meier, Torsten AU - Koch, S. W. AU - Chow, W. W. AU - Hader, J. AU - Moloney, J. V. ID - 23507 IS - 26 JF - Applied Physics Letters SN - 0003-6951 TI - Gain and carrier losses of (GaIn)(NAs) heterostructures in the 1300–1550 nm range VL - 87 ER - TY - JOUR AU - Scharnberg, M. AU - Hu, J. AU - Kanzow, J. AU - Rätzke, K. AU - Adelung, R. AU - Faupel, F. AU - Pannemann, C. AU - Hilleringmann, Ulrich AU - Meyer, S. AU - Pflaum, J. ID - 39574 IS - 2 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Radiotracer measurements as a sensitive tool for the detection of metal penetration in molecular-based organic electronics VL - 86 ER - TY - JOUR AU - Haberer, E. D. AU - Sharma, R. AU - Meier, Cedrik AU - Stonas, A. R. AU - Nakamura, S. AU - DenBaars, S. P. AU - Hu, E. L. ID - 7678 IS - 22 JF - Applied Physics Letters SN - 0003-6951 TI - Free-standing, optically pumped, GaN∕InGaN microdisk lasers fabricated by photoelectrochemical etching VL - 85 ER - TY - JOUR AU - Petrosyan, S. AU - Yesayan, A. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8696 JF - Applied Physics Letters SN - 0003-6951 TI - The linearly graded two-dimensional p–n junction ER - TY - JOUR AU - Grbić, B. AU - Ellenberger, C. AU - Ihn, T. AU - Ensslin, K. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8711 JF - Applied Physics Letters SN - 0003-6951 TI - Magnetotransport in C-doped AlGaAs heterostructures ER - TY - JOUR AB - A theory is presented which couples a dynamical laser model to a fully microscopic calculation of scattering effects. Calculations for two optically pumped GaInNAs laser structures show how this approach can be used to analyze nonequilibrium and dynamical laser properties over a wide range of system parameters. AU - Thränhardt, A. AU - Becker, S. AU - Schlichenmaier, C. AU - Kuznetsova, I. AU - Meier, Torsten AU - Koch, S. W. AU - Hader, J. AU - Moloney, J. V. AU - Chow, W. W. ID - 23514 IS - 23 JF - Applied Physics Letters SN - 0003-6951 TI - Nonequilibrium gain in optically pumped GaInNAs laser structures VL - 85 ER - TY - JOUR AU - Reuter, D. AU - Riedesel, C. AU - Schafmeister, P. AU - Meier, Cedrik AU - Wieck, A. D. ID - 7683 IS - 3 JF - Applied Physics Letters SN - 0003-6951 TI - Fabrication of high-quality two-dimensional electron gases by overgrowth of focused-ion-beam-doped AlxGa1−xAs VL - 82 ER - TY - JOUR AU - Cuenya, B. Roldan AU - Doi, M. AU - Keune, W. AU - Hoch, S. AU - Reuter, Dirk AU - Wieck, A. AU - Schmitte, T. AU - Zabel, H. ID - 8723 JF - Applied Physics Letters SN - 0003-6951 TI - Magnetism and interface properties of epitaxial Fe films on high-mobility GaAs/Al0.35Ga0.65As(001) two-dimensional electron gas heterostructures ER - TY - JOUR AB - We report the experimental observation and the theoretical modeling of self-induced-transparency signatures such as nonlinear transmission, pulse retardation and reshaping, for subpicosecond pulse propagation in a 2-mm-long InGaAs quantum-dot ridge waveguide in resonance with the excitonic ground-state transition at 10 K. The measurements were obtained by using a cross-correlation frequency-resolved optical gating technique which allows us to retrieve the field amplitude of the propagating pulses. AU - Schneider, S. AU - Borri, P. AU - Langbein, W. AU - Woggon, U. AU - Förstner, Jens AU - Knorr, A. AU - Sellin, R. L. AU - Ouyang, D. AU - Bimberg, D. ID - 4288 IS - 18 JF - Applied Physics Letters KW - tet_topic_qd SN - 0003-6951 TI - Self-induced transparency in InGaAs quantum-dot waveguides VL - 83 ER - TY - JOUR AU - Mertens, Guido AU - Röder, Thorsten AU - Matthias, Heinrich AU - Marsmann, Heinrich AU - Kitzerow, Heinz-Siegfried AU - Schweizer, Stefan L. AU - Jamois, Cecile AU - Wehrspohn, Ralf B. AU - Neubert, Mary ID - 39776 IS - 15 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Two- and three-dimensional photonic crystals made of macroporous silicon and liquid crystals VL - 83 ER - TY - JOUR AU - Pertsch, T. AU - Zentgraf, Thomas AU - Peschel, U. AU - Bräuer, A. AU - Lederer, F. ID - 1745 IS - 18 JF - Applied Physics Letters SN - 0003-6951 TI - Beam steering in waveguide arrays VL - 80 ER - TY - JOUR AU - Fischer, S. F. AU - Apetrii, G. AU - Skaberna, S. AU - Kunze, U. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8731 JF - Applied Physics Letters SN - 0003-6951 TI - Control of the confining potential in ballistic constrictions using a persistent charging effect ER - TY - JOUR AU - Regul, J. AU - Keyser, U. F. AU - Paesler, M. AU - Hohls, F. AU - Zeitler, U. AU - Haug, R. J. AU - Malavé, A. AU - Oesterschulze, E. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8736 JF - Applied Physics Letters SN - 0003-6951 TI - Fabrication of quantum point contacts by engraving GaAs/AlGaAs heterostructures with a diamond tip ER - TY - JOUR AU - Schaapman, M. R. AU - Christianen, P. C. M. AU - Maan, J. C. AU - Reuter, Dirk AU - Wieck, A. D. ID - 8740 JF - Applied Physics Letters SN - 0003-6951 TI - A multipurpose torsional magnetometer with optical detection ER - TY - JOUR AU - Reuter, Dirk AU - Meier, C. AU - Álvarez, M. A. Serrano AU - Wieck, A. D. ID - 8746 JF - Applied Physics Letters SN - 0003-6951 TI - Increased thermal budget for selectively doped heterostructures by employing AlAs/GaAs superlattices ER - TY - JOUR AU - de los Arcos de Pedro, Maria Teresa AU - Vonau, F. AU - Garnier, M. G. AU - Thommen, V. AU - Boyen, H.-G. AU - Oelhafen, P. AU - Düggelin, M. AU - Mathis, D. AU - Guggenheim, R. ID - 22620 JF - Applied Physics Letters SN - 0003-6951 TI - Influence of iron–silicon interaction on the growth of carbon nanotubes produced by chemical vapor deposition ER - TY - JOUR AU - Mertens, Guido AU - Röder, Thorsten AU - Schweins, Ralf AU - Huber, Klaus AU - Kitzerow, Heinz-Siegfried ID - 39778 IS - 11 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Shift of the photonic band gap in two photonic crystal/liquid crystal composites VL - 80 ER - TY - JOUR AU - Reuter, Dirk AU - Meier, Cedrik AU - Álvarez, M. A. Serrano AU - Wieck, A. D. ID - 8767 JF - Applied Physics Letters SN - 0003-6951 TI - Increased thermal budget for selectively doped heterostructures by employing AlAs/GaAs superlattices VL - 79 ER - TY - JOUR AU - Vorflusev, V. P. AU - Kitzerow, Heinz-Siegfried AU - Chigrinov, V. G. ID - 40296 IS - 25 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Azimuthal surface gliding of a nematic liquid crystal VL - 70 ER - TY - JOUR AU - Strauss, J. AU - Kitzerow, Heinz-Siegfried ID - 40305 IS - 6 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Gray‐scale in polymer‐stabilized antiferroelectric liquid crystal displays VL - 69 ER - TY - JOUR AU - Jain, Sukhmal C. AU - Kitzerow, Heinz-Siegfried ID - 40318 IS - 22 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Bulk‐induced alignment of nematic liquid crystals by photopolymerization VL - 64 ER - TY - JOUR AU - Kitzerow, Heinz-Siegfried AU - Molsen, Henning AU - Heppke, Gerd ID - 40329 IS - 25 JF - Applied Physics Letters KW - Physics and Astronomy (miscellaneous) SN - 0003-6951 TI - Linear electro‐optic effects in polymer‐dispersed ferroelectric liquid crystals VL - 60 ER -