@article{43421, abstract = {{The achievement of a flat metasurface has realized extraordinary control over light–matter interaction at the nanoscale, enabling widespread use in imaging, holography, and biophotonics. However, three-dimensional metasurfaces with the potential to provide additional light–matter manipulation flexibility attract only little interest. Here, we demonstrate a three-dimensional metasurface scheme capable of providing dual phase control through out-of-plane plasmonic resonance of L-shape antennas. Under circularly polarized excitation at a specific wavelength, the L-shape antennas with rotating orientation angle act as spatially variant three-dimensional tilted dipoles and are able to generate desire phase delay for different polarization components. Generalized Snell's law is achieved for both in-plane and out-of-plane dipole components through arranging such L-shape antennas into arrays. These three-dimensional metasurfaces suggest a route for wavefront modulation and a variety of nanophotonic applications.}}, author = {{Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{14}}, publisher = {{AIP Publishing}}, title = {{{Three-dimensional dipole momentum analog based on L-shape metasurface}}}, doi = {{10.1063/5.0142389}}, volume = {{122}}, year = {{2023}}, } @article{31480, abstract = {{Optical geometric phase encoded by in-plane spatial orientation of microstructures has promoted the rapid development of numerous functional meta-devices. However, pushing the concept of the geometric phase toward the acoustic community still faces challenges. In this work, we utilize two acoustic nonlocal metagratings that could support a direct conversion between an acoustic plane wave and a designated vortex mode to obtain the acoustic geometric phase, in which an orbital angular momentum conversion process plays a vital role. In addition, we realize the acoustic geometric phases of different orders by merely varying the orientation angle of the acoustic nonlocal metagratings. Intriguingly, according to our developed theory, we reveal that the reflective acoustic geometric phase, which is twice the transmissive one, can be readily realized by transferring the transmitted configuration to a reflected one. Both the theoretical study and experimental measurements verify the announced transmissive and reflective acoustic geometric phases. Moreover, the reconfigurability and continuous phase modulation that covers the 2π range shown by the acoustic geometric phases provide us with the alternatives in advanced acoustic wavefront control.}}, author = {{Liu, Bingyi and Zhou, Zhiling and Wang, Yongtian and Zentgraf, Thomas and Li, Yong and Huang, Lingling}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{21}}, publisher = {{AIP Publishing}}, title = {{{Experimental verification of the acoustic geometric phase}}}, doi = {{10.1063/5.0091474}}, volume = {{120}}, year = {{2022}}, } @article{36414, abstract = {{ Recently, microcavities with anisotropic materials were shown to be able to create bands with non-zero local Berry curvature. The anisotropic refractive index of the cavity layer is believed to be critical in opening an energy gap at the tilted Dirac points. In this work, we show that the anticrossing between a cavity mode and a Bragg mode can also be realized within an empty microcavity without any birefringent materials in the cavity layer. Nondispersive bands are observed within the energy gap due to the particular refractive index distribution of the sample. The intrinsic TE-TM splitting and XY splitting of DBR mirrors induce the squeezing of the cavity modes in momentum space, so that the nondispersive bands are tilted and spin-dependent. Our results pave the way to investigate interesting physical phenomena of photonic modes close to or in the nondispersive bands without anisotropic cavity layers. }}, author = {{Gao, Ying and Li, Yao and Ma, Xuekai and Gao, Meini and Dai, Haitao and Schumacher, Stefan and Gao, Tingge}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{20}}, publisher = {{AIP Publishing}}, title = {{{Tilting nondispersive bands in an empty microcavity}}}, doi = {{10.1063/5.0093908}}, volume = {{121}}, year = {{2022}}, } @article{34094, author = {{Gao, Ying and Li, Yao and Ma, Xuekai and Gao, Meini and Dai, Haitao and Schumacher, Stefan and Gao, Tingge}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{20}}, publisher = {{AIP Publishing}}, title = {{{Tilting nondispersive bands in an empty microcavity}}}, doi = {{10.1063/5.0093908}}, volume = {{121}}, year = {{2022}}, } @article{47982, abstract = {{Spontaneous Raman spectroscopy (SR) is a versatile method for analysis and visualization of ferroelectric crystal structures, including domain walls. Nevertheless, the necessary acquisition time makes SR impractical for in situ analysis and large scale imaging. In this work, we introduce broadband coherent anti-Stokes Raman spectroscopy (B-CARS) as a high-speed alternative to conventional Raman techniques and demonstrate its benefits for ferroelectric domain wall analysis. Using the example of poled lithium niobate, we compare the spectral output of both techniques in terms of domain wall signatures and imaging capabilities. We extract the Raman-like resonant part of the coherent anti-Stokes signal via a Kramers–Kronig-based phase retrieval algorithm and compare the raw and phase-retrieved signals to SR characteristics. Finally, we propose a mechanism for the observed domain wall signal strength that resembles a Čerenkov-like behavior, in close analogy to domain wall signatures obtained by second-harmonic generation imaging. We, thus, lay here the foundations for future investigations on other poled ferroelectric crystals using B-CARS.}}, author = {{Reitzig, Sven and Hempel, Franz and Ratzenberger, Julius and Hegarty, Peter A. and Amber, Zeeshan H. and Buschbeck, Robin and Rüsing, Michael and Eng, Lukas M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{16}}, publisher = {{AIP Publishing}}, title = {{{High-speed hyperspectral imaging of ferroelectric domain walls using broadband coherent anti-Stokes Raman scattering}}}, doi = {{10.1063/5.0086029}}, volume = {{120}}, year = {{2022}}, } @article{27099, abstract = {{In our work, we have engineered low capacitance single quantum dot photodiodes as sensor devices for the optoelectronic sampling of ultrafast electric signals. By the Stark effect, a time-dependent electric signal is converted into a time-dependent shift of the transition energy. This shift is measured accurately by resonant ps laser spectroscopy with photocurrent detection. In our experiments, we sample the laser synchronous output pulse of an ultrafast CMOS circuit with high resolution. With our quantum dot sensor device, we were able to sample transients below 20 ps with a voltage resolution in the mV-range.}}, author = {{Widhalm, Alex and Krehs, Sebastian and Siebert, Dustin and Sharma, Nand Lal and Langer, Timo and Jonas, Björn and Reuter, Dirk and Thiede, Andreas and Förstner, Jens and Zrenner, Artur}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{tet_topic_qd}}, pages = {{181109}}, title = {{{Optoelectronic sampling of ultrafast electric transients with single quantum dots}}}, doi = {{10.1063/5.0061358}}, volume = {{119}}, year = {{2021}}, } @article{17433, author = {{Wang, D. Q. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R. and Klochan, O.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Two-dimensional lateral surface superlattices in GaAs heterostructures with independent control of carrier density and modulation potential}}}, doi = {{10.1063/5.0009462}}, year = {{2020}}, } @article{17995, author = {{Riha, Christian and Buchholz, Sven S. and Chiatti, Olivio and Wieck, Andreas D. and Reuter, Dirk and Fischer, Saskia F.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Excess noise in Al x Ga 1 − xAs/GaAs based quantum rings}}}, doi = {{10.1063/5.0002247}}, year = {{2020}}, } @article{17322, author = {{Mukherjee, Amlan and Widhalm, Alex and Siebert, Dustin and Krehs, Sebastian and Sharma, Nandlal and Thiede, Andreas and Reuter, Dirk and Förstner, Jens and Zrenner, Artur}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{tet_topic_qd}}, pages = {{251103}}, title = {{{Electrically controlled rapid adiabatic passage in a single quantum dot}}}, doi = {{10.1063/5.0012257}}, volume = {{116}}, year = {{2020}}, } @article{40271, author = {{Vergyris, Panagiotis and Babin, Charles and Nold, Raphael and Gouzien, Elie and Herrmann, Harald and Silberhorn, Christine and Alibart, Olivier and Tanzilli, Sébastien and Kaiser, Florian}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{2}}, publisher = {{AIP Publishing}}, title = {{{Two-photon phase-sensing with single-photon detection}}}, doi = {{10.1063/5.0009527}}, volume = {{117}}, year = {{2020}}, } @article{21029, author = {{Allgaier, Markus and Ansari, Vahid and Eigner, Christof and Quiring, Viktor and Ricken, Raimund and Donohue, John Matthew and Czerniuk, Thomas and Aßmann, Marc and Bayer, Manfred and Brecht, Benjamin and Silberhorn, Christine}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Streak camera imaging of single photons at telecom wavelength}}}, doi = {{10.1063/1.5004110}}, volume = {{112}}, year = {{2018}}, } @article{23630, author = {{Liu, Ning and Steinrück, Hans-Georg and Osvet, Andres and Yang, Yuyun and Schmuki, Patrik}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, pages = {{072102}}, title = {{{Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage}}}, doi = {{10.1063/1.4976010}}, volume = {{110}}, year = {{2017}}, } @article{13361, author = {{Lafont, O. and Luk, S. M. H. and Lewandowski, P. and Kwong, N. H. and Leung, P. T. and Galopin, E. and Lemaitre, A. and Tignon, J. and Schumacher, Stefan and Baudin, E. and Binder, R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Controlling the optical spin Hall effect with light}}}, doi = {{10.1063/1.4975681}}, year = {{2017}}, } @article{22568, author = {{Layes, V. and Monje, S. and Corbella, C. and Trieschmann, J. and de los Arcos de Pedro, Maria Teresa and von Keudell, A.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Species transport on the target during high power impulse magnetron sputtering}}}, doi = {{10.1063/1.4976999}}, year = {{2017}}, } @article{39674, author = {{Atorf, B. and Rasouli, H. and Nordendorf, G. and Wilkes, D. and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{8}}, publisher = {{AIP Publishing}}, title = {{{Near infrared Kerr effect and description of field-induced phase transitions in polymer-stabilized blue phase liquid crystals}}}, doi = {{10.1063/1.4942604}}, volume = {{108}}, year = {{2016}}, } @article{4237, abstract = {{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.}}, author = {{Mackwitz, P. and Rüsing, Michael and Berth, Gerhard and Widhalm, A. and Müller, K. and Zrenner, Artur}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{15}}, publisher = {{AIP Publishing}}, title = {{{Periodic domain inversion in x-cut single-crystal lithium niobate thin film}}}, doi = {{10.1063/1.4946010}}, volume = {{108}}, year = {{2016}}, } @article{7217, author = {{Jostmeier, Thorben and Wecker, Tobias and Reuter, Dirk and As, Donat Josef and Betz, Markus}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{21}}, publisher = {{AIP Publishing}}, title = {{{Ultrafast carrier dynamics and resonant inter-miniband nonlinearity of a cubic GaN/AlN superlattice}}}, doi = {{10.1063/1.4936330}}, volume = {{107}}, year = {{2015}}, } @article{7221, author = {{Chen, J. C. H. and Klochan, O. and Micolich, A. P. and Das Gupta, K. and Sfigakis, F. and Ritchie, D. A. and Trunov, K. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{18}}, publisher = {{AIP Publishing}}, title = {{{Fabrication and characterisation of gallium arsenide ambipolar quantum point contacts}}}, doi = {{10.1063/1.4918934}}, volume = {{106}}, year = {{2015}}, } @article{4331, abstract = {{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.}}, author = {{Quiring, W. and Al-Hmoud, M. and Rai, A. and Reuter, Dirk and Wieck, A. D. and Zrenner, Artur}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{4}}, publisher = {{AIP Publishing}}, title = {{{Photonic crystal cavities with metallic Schottky contacts}}}, doi = {{10.1063/1.4928038}}, volume = {{107}}, year = {{2015}}, } @article{6524, abstract = {{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.}}, author = {{Czerniuk, T. and Tepper, J. and Akimov, A. V. and Unsleber, S. and Schneider, C. and Kamp, M. and Höfling, S. and Yakovlev, D. R. and Bayer, M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{4}}, publisher = {{AIP Publishing}}, title = {{{Impact of nanomechanical resonances on lasing from electrically pumped quantum dot micropillars}}}, doi = {{10.1063/1.4906611}}, volume = {{106}}, year = {{2015}}, } @article{39689, author = {{Wahle, Markus and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{20}}, publisher = {{AIP Publishing}}, title = {{{Electrically tunable zero dispersion wavelengths in photonic crystal fibers filled with a dual frequency addressable liquid crystal}}}, doi = {{10.1063/1.4936086}}, volume = {{107}}, year = {{2015}}, } @article{7224, author = {{Repp, J. and Schinner, G. J. and Schubert, E. and Rai, A. K. and Reuter, Dirk and Wieck, A. D. and Wurstbauer, U. and Kotthaus, J. P. and Holleitner, A. W.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{24}}, publisher = {{AIP Publishing}}, title = {{{Confocal shift interferometry of coherent emission from trapped dipolar excitons}}}, doi = {{10.1063/1.4904222}}, volume = {{105}}, year = {{2014}}, } @article{7259, author = {{Buß, J. H. and Rudolph, J. and Shvarkov, S. and Semond, F. and Reuter, Dirk and Wieck, A. D. and Hägele, D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{9}}, publisher = {{AIP Publishing}}, title = {{{Magneto-optical studies of Gd-implanted GaN: No spin alignment of conduction band electrons}}}, doi = {{10.1063/1.4819767}}, volume = {{103}}, year = {{2013}}, } @article{3963, abstract = {{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.}}, author = {{Bürger, M. and Ruth, M. and Declair, S. and Förstner, Jens and Meier, Cedrik and As, Donat Josef}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{tet_topic_qd, tet_topic_microdisk}}, number = {{8}}, pages = {{081105}}, publisher = {{AIP Publishing}}, title = {{{Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots}}}, doi = {{10.1063/1.4793653}}, volume = {{102}}, year = {{2013}}, } @article{39719, author = {{Vollbrecht, Joachim and Kasdorf, Olga and Quiring, Viktor and Suche, Hubertus and Bock, Harald and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{4}}, publisher = {{AIP Publishing}}, title = {{{Microresonator-enhanced electroluminescence of an organic light emitting diode based on a columnar liquid crystal}}}, doi = {{10.1063/1.4816425}}, volume = {{103}}, year = {{2013}}, } @article{26066, author = {{Li, Ming-Fei and Zhang, Yu-Ran and Liu, Xue-Feng and Yao, Xu-Ri and Luo, Kai Hong and Fan, Heng and Wu, Ling-An}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{A double-threshold technique for fast time-correspondence imaging}}}, doi = {{10.1063/1.4832328}}, year = {{2013}}, } @article{7301, author = {{Höpfner, Henning and Fritsche, Carola and Ludwig, Arne and Ludwig, Astrid and Stromberg, Frank and Wende, Heiko and Keune, Werner and Reuter, Dirk and Wieck, Andreas D. and Gerhardt, Nils C. and Hofmann, Martin R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{11}}, publisher = {{AIP Publishing}}, title = {{{Magnetic field dependence of the spin relaxation length in spin light-emitting diodes}}}, doi = {{10.1063/1.4752162}}, volume = {{101}}, year = {{2012}}, } @article{7312, author = {{Beckel, Andreas and Zhou, Daming and Marquardt, Bastian and Reuter, Dirk and Wieck, Andreas D. and Geller, Martin and Lorke, Axel}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{23}}, publisher = {{AIP Publishing}}, title = {{{Momentum matching in the tunneling between 2-dimensional and 0-dimensional electron systems}}}, doi = {{10.1063/1.4728114}}, volume = {{100}}, year = {{2012}}, } @article{7313, author = {{Schwan, A. and Varwig, S. and Greilich, A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{23}}, publisher = {{AIP Publishing}}, title = {{{Non-resonant optical excitation of mode-locked electron spin coherence in (In,Ga)As/GaAs quantum dot ensemble}}}, doi = {{10.1063/1.4726264}}, volume = {{100}}, year = {{2012}}, } @article{7327, author = {{Huang, J. and Chen, Y. S. and Ludwig, A. and Reuter, Dirk and Wieck, A. D. and Bacher, G.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{13}}, publisher = {{AIP Publishing}}, title = {{{Electron-nuclei spin coupling in GaAs—Free versus localized electrons}}}, doi = {{10.1063/1.3699261}}, volume = {{100}}, year = {{2012}}, } @article{7330, author = {{Chen, J. C. H. and Wang, D. Q. and Klochan, O. and Micolich, A. P. and Das Gupta, K. and Sfigakis, F. and Ritchie, D. A. and Reuter, Dirk and Wieck, A. D. and Hamilton, A. R.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{5}}, publisher = {{AIP Publishing}}, title = {{{Fabrication and characterization of ambipolar devices on an undoped AlGaAs/GaAs heterostructure}}}, doi = {{10.1063/1.3673837}}, volume = {{100}}, year = {{2012}}, } @article{7491, author = {{Kröger, Philipp and Ruth, Marcel and Weber, Nils and Meier, Cedrik}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{26}}, publisher = {{AIP Publishing}}, title = {{{Carrier localization in ZnO quantum wires}}}, doi = {{10.1063/1.4731767}}, volume = {{100}}, year = {{2012}}, } @article{22599, author = {{Ehiasarian, A. P. and Hecimovic, A. and de los Arcos de Pedro, Maria Teresa and New, R. and Schulz-von der Gathen, V. and Böke, M. and Winter, J.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{High power impulse magnetron sputtering discharges: Instabilities and plasma self-organization}}}, doi = {{10.1063/1.3692172}}, year = {{2012}}, } @article{39729, author = {{Atorf, B. and Hoischen, A. and Ros, M. B. and Gimeno, N. and Tschierske, C. and Dantlgraber, G. and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{22}}, publisher = {{AIP Publishing}}, title = {{{Switching performance of a polymer-stabilized antiferroelectric liquid crystal based on bent-core molecules}}}, doi = {{10.1063/1.4722794}}, volume = {{100}}, year = {{2012}}, } @article{39728, author = {{Schmidtke, Jürgen and Jünnemann, Gisela and Keuker-Baumann, Susanne and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{5}}, publisher = {{AIP Publishing}}, title = {{{Electrical fine tuning of liquid crystal lasers}}}, doi = {{10.1063/1.4739840}}, volume = {{101}}, year = {{2012}}, } @article{7697, author = {{Marquardt, B. and Beckel, A. and Lorke, A. and Wieck, A. D. and Reuter, Dirk and Geller, M.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{22}}, publisher = {{AIP Publishing}}, title = {{{The influence of charged InAs quantum dots on the conductance of a two-dimensional electron gas: Mobility vs. carrier concentration}}}, doi = {{10.1063/1.3665070}}, volume = {{99}}, year = {{2011}}, } @article{7710, author = {{Buchholz, Sven S. and Kunze, Ulrich and Reuter, Dirk and Wieck, Andreas D. and Fischer, Saskia F.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{10}}, publisher = {{AIP Publishing}}, title = {{{Mode-filtered electron injection into a waveguide interferometer}}}, doi = {{10.1063/1.3563714}}, volume = {{98}}, year = {{2011}}, } @article{7711, author = {{Chen, Y. S. and Huang, J. and Reuter, Dirk and Ludwig, A. and Wieck, A. D. and Bacher, G.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{8}}, publisher = {{AIP Publishing}}, title = {{{Optically detected nuclear magnetic resonance in n-GaAs using an on-chip microcoil}}}, doi = {{10.1063/1.3553503}}, volume = {{98}}, year = {{2011}}, } @article{7311, author = {{Soldat, Henning and Li, Mingyuan and Gerhardt, Nils C. and Hofmann, Martin R. and Ludwig, Arne and Ebbing, Astrid and Reuter, Dirk and Wieck, Andreas D. and Stromberg, Frank and Keune, Werner and Wende, Heiko}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{5}}, publisher = {{AIP Publishing}}, title = {{{Room temperature spin relaxation length in spin light-emitting diodes}}}, doi = {{10.1063/1.3622662}}, volume = {{99}}, year = {{2011}}, } @article{39735, author = {{Lorenz, Alexander and Kitzerow, Heinz-Siegfried}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{24}}, publisher = {{AIP Publishing}}, title = {{{Efficient electro-optic switching in a photonic liquid crystal fiber}}}, doi = {{10.1063/1.3599848}}, volume = {{98}}, year = {{2011}}, } @article{7975, author = {{Lei, W. and Notthoff, C. and Lorke, A. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{3}}, publisher = {{AIP Publishing}}, title = {{{Electronic structure of self-assembled InGaAs/GaAs quantum rings studied by capacitance-voltage spectroscopy}}}, doi = {{10.1063/1.3293445}}, volume = {{96}}, year = {{2010}}, } @article{7980, author = {{Lei, W. and Notthoff, C. and Lorke, A. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{3}}, publisher = {{AIP Publishing}}, title = {{{Electronic structure of self-assembled InGaAs/GaAs quantum rings studied by capacitance-voltage spectroscopy}}}, doi = {{10.1063/1.3293445}}, volume = {{96}}, year = {{2010}}, } @article{7982, author = {{Csontos, M. and Komijani, Y. and Shorubalko, I. and Ensslin, K. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{2}}, publisher = {{AIP Publishing}}, title = {{{Nanostructures in p-GaAs with improved tunability}}}, doi = {{10.1063/1.3463465}}, volume = {{97}}, year = {{2010}}, } @article{7983, author = {{Wiemann, M. and Wieser, U. and Kunze, U. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{6}}, publisher = {{AIP Publishing}}, title = {{{Full-wave rectification based upon hot-electron thermopower}}}, doi = {{10.1063/1.3475922}}, volume = {{97}}, year = {{2010}}, } @article{7990, author = {{Mehta, M. and Reuter, Dirk and Wieck, A. D. and Michaelis de Vasconcellos, S. and Zrenner, A. and Meier, C.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{14}}, publisher = {{AIP Publishing}}, title = {{{An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting diode}}}, doi = {{10.1063/1.3488812}}, volume = {{97}}, year = {{2010}}, } @article{4550, abstract = {{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.}}, author = {{Mehta, M. and Reuter, Dirk and Wieck, A. D. and Michaelis de Vasconcellos, S. and Zrenner, Artur and Meier, Cedrik}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{14}}, publisher = {{AIP Publishing}}, title = {{{An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting diode}}}, doi = {{10.1063/1.3488812}}, volume = {{97}}, year = {{2010}}, } @article{4194, abstract = {{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.}}, author = {{Tschumak, E. and Granzner, R. and Lindner, Jörg and Schwierz, F. and Lischka, K. and Nagasawa, H. and Abe, M. and As, Donald}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{25}}, publisher = {{AIP Publishing}}, title = {{{Nonpolar cubic AlGaN/GaN heterojunction field-effect transistor on Ar+ implanted 3C–SiC (001)}}}, doi = {{10.1063/1.3455066}}, volume = {{96}}, year = {{2010}}, } @article{7973, author = {{Buchholz, S. S. and Fischer, S. F. and Kunze, U. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, number = {{2}}, publisher = {{AIP Publishing}}, title = {{{Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring}}}, doi = {{10.1063/1.3069281}}, volume = {{94}}, year = {{2009}}, } @article{8579, author = {{Buchholz, S. S. and Fischer, S. F. and Kunze, U. and Reuter, Dirk and Wieck, A. D.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring}}}, doi = {{10.1063/1.3069281}}, year = {{2009}}, } @article{8580, author = {{Blokland, J. H. and Bozkurt, M. and Ulloa, J. M. and Reuter, Dirk and Wieck, A. D. and Koenraad, P. M. and Christianen, P. C. M. and Maan, J. C.}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, title = {{{Ellipsoidal InAs quantum dots observed by cross-sectional scanning tunneling microscopy}}}, doi = {{10.1063/1.3072366}}, year = {{2009}}, }