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 AB - We present measurements of the effective electron mass in biaxial tensile strained silicon on insulator (SSOI) material with 1.2 GPa stress and in unstrained SOI. Hall-bar metal oxide semiconductor field effect transistors on 60 nm SSOI and SOI were fabricated and Shubnikov–de Haas oscillations in the temperature range of T=0.4–4 K for magnetic fields of B=0–10 T were measured. The effective electron mass in SSOI and SOI samples was determined as mt=(0.20±0.01)m0. This result is in excellent agreement with first-principles calculations of the effective electron mass in the presence of strain. AU - Feste, Sebastian F. AU - Schäpers, Thomas AU - Buca, Dan AU - Zhao, Qing Tai AU - Knoch, Joachim AU - Bouhassoune, Mohammed AU - Schindlmayr, Arno AU - Mantl, Siegfried ID - 18632 IS - 18 JF - Applied Physics Letters SN - 0003-6951 TI - Measurement of effective electron mass in biaxial tensile strained silicon on insulator VL - 95 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 -