@phdthesis{5012, author = {{Brinkmann, Bastian}}, publisher = {{Verlag Dr. Kovac}}, title = {{{Die Bewertung der Steuerstrategie von Unternehmen}}}, year = {{2017}}, } @article{5013, author = {{Bornemann, Tobias and Eberhartinger, Eva}}, journal = {{RWZ- Zeitschrift für Recht und Rechnungswesen}}, number = {{10}}, pages = {{319--325}}, title = {{{Die Initiative der EU zum öffentlichen Country-by-Country Reporting}}}, volume = {{27}}, year = {{2017}}, } @article{5014, abstract = {{This paper studies the impact of personal and corporate income taxation on capital charge rates in a delegation setting with a risk-averse manager. If the investment level influences the riskiness of the investment project, the capital charge rate deviates from the firm's cost of capital and depends crucially on the manager's personal income tax rate. Contradicting conventional wisdom, we find that a higher personal income tax rate induces higher investment expenditures and, surprisingly, increases the capital charge rate. The countervailing effect that a higher capital charge rate induces higher and not lower investment expenditures persists for pre-tax and after-tax performance measures as well as when the tax deductibility of managerial compensation is limited. Corporate income tax causes a similar effect only in the case of limited tax deductibility of compensation. Our insights remain valid regardless of the financing structure and the risk attitude of the investors.}}, author = {{Bauer, Thomas and Kourouxous, Thomas}}, issn = {{0963-8180}}, journal = {{European Accounting Review}}, number = {{3}}, pages = {{419--440}}, publisher = {{Informa UK Limited}}, title = {{{Capital Charge Rates, Investment Incentives and Taxation}}}, doi = {{10.1080/09638180.2016.1169938}}, volume = {{26}}, year = {{2017}}, } @article{5019, author = {{Klör, B and Monhof, M and Beverungen, Daniel and Bräuer, S}}, journal = {{European Journal of Information Systems (EJIS)}}, pages = {{1----19}}, title = {{{Design and Evaluation of a Model-Driven Decision Support System for Repurposing Electric Vehicle Batteries}}}, doi = {{10.1057/s41303-017-0044-3}}, year = {{2017}}, } @inbook{5028, author = {{Becker, Jörg and Monhof, Markus and Beverungen, Daniel and Bräuer, Sebastian and Klör, Benjamin and Plenter, Florian}}, booktitle = {{Dienstleistungen als Erfolgsfaktor für Elektromobilität. Ergebnisse aus dem Förderschwerpunkt “Dienstleistungsinnovationen für Elektromobilität”}}, editor = {{Ganz, Walter and Kampker, Achim and Satzger, Gerhard}}, isbn = {{978-3-8396-1212-5}}, pages = {{24----29}}, title = {{{End-of-Life Solutions für eCar-Batterien --- Entwicklung hybrider Leistungsbündel und Informationssysteme zur Entscheidungsunterstützung (EOL-IS)}}}, year = {{2017}}, } @inbook{5076, author = {{Beverungen, Daniel and Matzner, Martin }}, booktitle = {{Handbuch Dienstleistungsmanagement}}, editor = {{Roth, Stefan and Corsten, Hans}}, pages = {{S. 519–536}}, publisher = {{Verlag Franz Vahlen}}, title = {{{Informationsmodellierung in Dienstleistungssystemen}}}, year = {{2017}}, } @misc{5084, author = {{Streck, Thomas}}, publisher = {{Universität Paderborn}}, title = {{{How to adequately relocate asylum applicants within the European Union - An attempt to apply matching theory in the current migration crisis}}}, year = {{2017}}, } @misc{51, author = {{Winkelhake, Nikolai}}, publisher = {{Universität Paderborn}}, title = {{{Tying und Bundling in digitalen Märkten - eine wettbewerbspolitische Analyse}}}, year = {{2017}}, } @techreport{5174, author = {{Sievers, Sönke and Kengelbach, Jens and Keienburg, Georg and Schmid, Timo and Gjersta, Ketil and Nielsen, Jesper and Walker, Decker}}, publisher = {{The Boston Consulting Group, Inc., M&A Report}}, title = {{{The Technology Takeover}}}, year = {{2017}}, } @misc{5178, author = {{Müller, Stefan}}, booktitle = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, issn = {{2195-5743}}, number = {{2}}, pages = {{93 -- 96}}, publisher = {{DFV}}, title = {{{Rezension von: Bernd H. Oppermann/Jutta Stender-Vorwachs (Hrsg.): Autonomes Fahren – Rechtsfolgen, Rechtsprobleme, technische Grundlagen}}}, volume = {{5}}, year = {{2017}}, } @article{5179, author = {{Müller, Stefan}}, issn = {{2195-5743}}, journal = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, number = {{2}}, pages = {{57}}, publisher = {{DFV}}, title = {{{Legal Tech – for Legals or for Techies}}}, volume = {{6}}, year = {{2017}}, } @misc{5181, author = {{Müller, Stefan}}, booktitle = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, issn = {{2195-5743}}, number = {{2}}, pages = {{83 -- 85}}, publisher = {{DFV}}, title = {{{Rezension von: Stephan Breidenbach/Florian Glatz (Hrsg.): Rechtshandbuch Legal Tech, 2018, C.H. Beck.}}}, volume = {{6}}, year = {{2017}}, } @article{5182, author = {{Müller, Stefan}}, issn = {{2195-5743}}, journal = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, number = {{2}}, pages = {{61}}, title = {{{Hochautomatisierung jetzt, Vollautonomisierung später?}}}, volume = {{5}}, year = {{2017}}, } @inbook{5184, author = {{Müller, Stefan}}, booktitle = {{Urheberrecht und Internet}}, editor = {{Ensthaler, Jürgen and Weidert, Stefan}}, isbn = {{978-3-8005-1603-3}}, pages = {{219 -- 278}}, publisher = {{Deutscher Fachverlag}}, title = {{{Schranken urheberrechtlicher Befugnisse}}}, year = {{2017}}, } @article{5185, abstract = {{We offer the first empirical analysis connecting the timing of general partner (GP) compensation to private equity fund performance. Using detailed information on limited partnership agreements between private equity limited and general partners, we find that "GP-friendly" contracts - agreements that pay general partners on a deal-by-deal basis instead of withholding carried interest until a benchmark return has been earned - are associated with higher returns, both gross and net of fees. This is robust to measures of performance persistence, time period effects, and other contract terms, and is related to exit-timing incentives. Timing practices balance GP incentives against limited partner downside protection. }}, author = {{Hüther, Niklas and Robinson, David and Sievers, Sönke and Hartmann-Wendels, Thomas}}, journal = {{SSRN Electronic Journal}}, keywords = {{venture capital, compensation, private equity, VC partnership, pay-performance relation}}, title = {{{Paying for Performance in Private Equity: Evidence from VC Partnerships}}}, doi = {{10.2139/ssrn.3087320}}, year = {{2017}}, } @article{5186, author = {{Müller, Stefan}}, journal = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, number = {{3}}, pages = {{129--134}}, publisher = {{DFV}}, title = {{{Innovationswettbewerbe im Internet - Teil 1}}}, volume = {{5}}, year = {{2017}}, } @article{5187, author = {{Müller, Stefan and Wicker, Eva-Maria and Janicki, Thomas}}, journal = {{Zeitschrift zum Innovations- und Technikrecht (InTeR)}}, number = {{4}}, pages = {{183 -- 192}}, publisher = {{DFV}}, title = {{{Innovationswettbewerbe im Internet – Teil 2}}}, volume = {{5}}, year = {{2017}}, } @article{5199, abstract = {{This study proposes a simple theoretical framework that allows for assessing financial distress up to five years in advance. We jointly model financial distress by using two of its key driving factors: declining cash-generating ability and insufficient liquidity reserves. The model is based on stochastic processes and incorporates firm-level and industry-sector developments. A large-scale empirical implementation for US-listed firms over the period of 1980-2010 shows important improvements in the discriminatory accuracy and demonstrates incremental information content beyond state-of-the-art accounting and market-based prediction models. Consequently, this study might provide important ex ante warning signals for investors, regulators and practitioners. }}, author = {{Klobucnik, Jan and Miersch, David and Sievers, Sönke}}, journal = {{SSRN Electronic Journal}}, keywords = {{Financial distress prediction, probability of default, accounting information, stochastic processes, simulation}}, title = {{{Predicting Early Warning Signals of Financial Distress: Theory and Empirical Evidence}}}, year = {{2017}}, } @inproceedings{52, author = {{John, Thomas and Szopinski, Daniel}}, booktitle = {{1st Business Model Conference}}, location = {{Venice, Italy}}, title = {{{Towards Explaining the Popularity of the Business Model Canvas: A Dual-coding Approach}}}, year = {{2017}}, } @inproceedings{5204, author = {{Späth, Johannes and Ali, Karim and Bodden, Eric}}, booktitle = {{2017 International Conference on Object-Oriented Programming, Languages and Applications (OOPSLA/SPLASH)}}, keywords = {{ATTRACT, ITSECWEBSITE, CROSSING}}, publisher = {{ACM Press}}, title = {{{IDEal: Efficient and Precise Alias-aware Dataflow Analysis}}}, year = {{2017}}, } @article{5209, author = {{Fischer, Andreas and Fuhry, Benny and Kerschbaum, Florian and Bodden, Eric}}, journal = {{CoRR}}, title = {{{Computation on Encrypted Data using Data Flow Authentication}}}, volume = {{abs/1710.00390}}, year = {{2017}}, } @article{5236, author = {{Schmitz, Hendrik and Schiele, Valentin}}, journal = {{Atlas of Science}}, title = {{{Sick already? Job loss makes it even worse}}}, year = {{2017}}, } @inbook{5238, author = {{Schmitz, Hendrik}}, booktitle = {{Krankenversicherung im Rating}}, editor = {{Adolph, T.}}, publisher = {{Springer Fachmedien Wiesbaden GmbH}}, title = {{{Preis, Service oder Leistungen: Was beeinflusst besonders die Krankenkassenwahl von gesetzlich Versicherten?}}}, year = {{2017}}, } @inproceedings{53, abstract = {{Amongst the growing body of literature on the drivers of online ratings, the influence of customers’ local offline environment on their ratings has largely been neglected. This study examines the relationship between ratings made outside of a customer’s home area and the magnitude of online ratings. We employ a data-driven identification of a customer’s geographic home area and use variation in this variable to identify the consequences for the magnitude of ratings. In line with our theory, we find that customers who rate while traveling give, on average, higher ratings than locals. However, this relationship is moderated by the posting time of a review relative to consumption, as travelers post more negative ratings during or shortly after consumption. These relationships are most pronounced for customers who travel and rate less frequently. Our results come with substantial implications for a business’s average rating and for customer decision making. }}, author = {{Neumann, Jürgen and Gutt, Dominik and Kundisch, Dennis}}, booktitle = {{Proceedings of the 38th International Conference on Information Systems (ICIS)}}, location = {{Seoul, South Korea}}, title = {{{The Traveling Reviewer Problem – Exploring the Relationship Between Offline Locations and Online Rating Behavior}}}, year = {{2017}}, } @inproceedings{5328, author = {{Larivière, Bart and Bowen, David and Andreassen, Tor W and Kunz, Werner and Sirianni, Nancy J and Voss, Chris and Wünderlich, Nancy and De Keyser, Arne}}, booktitle = {{Proceedings of QUIS 2017}}, location = {{Porto, Portugal}}, title = {{{Service Encounter 2.0": An Investigation Into the Roles of Technology, Employees and Customers.}}}, year = {{2017}}, } @inproceedings{5329, author = {{Becker-Özcamlica, Hürrem and Teßmer, Isabel and Wünderlich, Nancy}}, booktitle = {{Proceedings of the 2017 Winter Marketing Educators' Conference}}, location = {{Orlando, USA}}, title = {{{Do Companies Really Have to Emphasize the Triple Bottom Line? Analyzing the Effect of Competing Sustainable Market Orientations.}}}, year = {{2017}}, } @inproceedings{54, author = {{Neumann, Jürgen and Gutt, Dominik and Kundisch, Dennis}}, booktitle = {{INFORMS Annual Meeting}}, location = {{Houston, USA}}, title = {{{The Traveling Reviewer Problem – Exploring the Relationship between Offline Locations and Online Rating Behavior}}}, year = {{2017}}, } @inproceedings{5479, author = {{Eggert, Andreas and Steinhoff, Lena and Witte, Carina}}, title = {{{The Loyalty Effect of Gift Purchases}}}, year = {{2017}}, } @inproceedings{5482, author = {{Garnefeld, I and Boehm, E and Feider, L}}, title = {{{Managing the Necessary Evil: Can Payment Methods Reduce Product Returns}}}, year = {{2017}}, } @inproceedings{5483, author = {{Cramer, C and Boehm, E and Eggert, A}}, title = {{{Service Awards: Do They Help or Harm in Case of a Service Failure?}}}, year = {{2017}}, } @inproceedings{55, abstract = {{We introduce the mobile server problem, inspired by current trends to move computational tasks from cloud structures to multiple devices close to the end user. An example for this are embedded systems in autonomous cars that communicate in order to coordinate their actions. Our model is a variant of the classical Page Migration Problem. Moreformally, we consider a mobile server holding a data page.The server can move in the Euclidean space (of arbitrary dimension). In every round, requests for data items from the page pop up at arbitrary points in the space. The requests are served, each at a cost of the distance from the requesting point and the server, and the mobile server may move, at a cost D times the distance traveled for some constant D . We assume a maximum distance m the server is allowed to move per round. We show that no online algorithm can achieve a competitive ratio independent of the length of the input sequence in this setting. Hence we augment the maximum movement distance of the online algorithms to ( 1 + δ) times the maximum distance of the offline solution. We provide a deterministic algorithm which is simple to describe and works for multiple variants of our problem. The algorithm achieves almost tight competitive ratios independent of the length of the input sequence.}}, author = {{Feldkord, Björn and Meyer auf der Heide, Friedhelm}}, booktitle = {{Proceedings of the 29th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)}}, pages = {{313--319}}, title = {{{The Mobile Server Problem}}}, doi = {{10.1145/3087556.3087575}}, year = {{2017}}, } @inproceedings{5594, abstract = {{Design science is a fundamental research stream that contends its position in the information systems discipline. While ongoing debates address the relative importance of design science contributions in the information systems community, insights into the scientific impact of design science research (DSR) are missing and this lack of understanding arguably poses challenges to an informed discourse. To identify the most influential papers and those factors that explain their scientific impact, this paper presents an exploratory study of the scientific impact of DSR papers published in the AIS Senior Scholars' Basket of Journals. We uncover the current DSR landscape by taking stock of influential papers and theories and develop a model to explain the scientific impact of DSR papers. Our findings show that scientific impact is significantly explained by theorization and novelty. We discuss how the implications of our work can be projected on the overarching discourse on DSR.}}, author = {{Wagner, Gerit and Prester, Julian and Schryen, Guido}}, booktitle = {{38th International Conference on Information Systems}}, location = {{Seoul, South Korea}}, title = {{{Exploring the Scientific Impact of Information Systems Design Science Research: A Scientometric Study}}}, year = {{2017}}, } @inproceedings{56, author = {{John, Thomas}}, booktitle = {{1st Business Model Conference}}, location = {{Venice, Italy}}, title = {{{Supporting Business Model Idea Generation Through Machine-generated Ideas: A Design Theory}}}, year = {{2017}}, } @article{5626, author = {{Schryen, Guido and Hristova, Diana}}, journal = {{Smart Data Radar (Deutsche Bank)}}, title = {{{High-Performance Business Computing - Effizienzsteigerung durch Parallelisierung}}}, year = {{2017}}, } @article{5633, abstract = {{Literature reviews (LRs) are recognized for their increasing impact in the information systems literature. Methodologists have drawn attention to the question of how we can leverage the value of LRs to preserve and generate knowledge. The panelists who participated in the discussion of ?Standalone Literature Reviews in IS Research: What Can Be Learnt from the Past and Other Fields?? at ICIS 2016 in Dublin acknowledged this significant issue and debated a) what the IS field can learn from other fields and where IS-specific challenges occur, b) how the IS field should move forward to foster the genre of LRs, and c) what best practices are to train doctoral IS students in publishing LRs. This article reports the key takeaways of this panel discussion. Guidance for IS scholars is provided on how to conduct LRs that contribute to the cumulative knowledge development within and across the IS field to best prepare the next generation of IS scholars.}}, author = {{Schryen, Guido and Benlian, Alexander and Rowe, Frantz and Shirley, Gregor and Larsen, Kai and Petter, Stacie and Par{\'e}, Guy and Wagner, Gerit and Haag, Steffi and Yasasin, Emrah}}, issn = {{1529-3181}}, journal = {{Communications of the AIS}}, keywords = {{Literature Review, Review Methodology, Research Methodology, Doctoral Training}}, pages = {{557 -- 569}}, publisher = {{Association for Information Systems (AIS)}}, title = {{{Literature Reviews in IS Research: What Can Be Learnt from the Past and Other Fields?}}}, volume = {{40}}, year = {{2017}}, } @article{5671, abstract = {{Multi-attribute value theory (MAVT)-based recommender systems have been proposed for dealing with issues of existing recommender systems, such as the cold-start problem and changing preferences. However, as we argue in this paper, existing MAVT-based methods for measuring attribute importance weights do not fit the shopping tasks for which recommender systems are typically used. These methods assume well-trained decision makers who are willing to invest time and cognitive effort, and who are familiar with the attributes describing the available alternatives and the ranges of these attribute levels. Yet, recommender systems are most often used by consumers who are usually not familiar with the available attributes and ranges and who wish to save time and effort. Against this background, we develop a new method, based on a product configuration process, which is tailored to the characteristics of these particular decision makers. We empirically compare our method to SWING, ranking-based conjoint analysis and TRADEOFF in a between-subjects laboratory experiment with 153 participants. Results indicate that our proposed method performs better than TRADEOFF and CONJOINT and at least as well as SWING in terms of recommendation accuracy, better than SWING and TRADEOFF and at least as well as CONJOINT in terms of cognitive load, and that participants were faster with our method than with any other method. We conclude that our method is a promising option to help support consumers' decision processes in e-commerce shopping tasks.}}, author = {{Scholz, Michael and Dorner, Verena and Schryen, Guido and Benlian, Alexander}}, journal = {{European Journal of Operational Research}}, keywords = {{E-Commerce, Recommender System, Attribute Weights, Configuration System, Decision Support}}, number = {{1}}, pages = {{205 -- 215}}, publisher = {{Elsevier}}, title = {{{A configuration-based recommender system for supporting e-commerce decisions}}}, volume = {{259}}, year = {{2017}}, } @article{6489, author = {{Kremer, H.-Hugo and Frehe, Petra and Kückmann, Marie-Ann and Kundisch, Heike}}, journal = {{bwp@ Berufs- und Wirtschaftspädagogik - online}}, number = {{33}}, pages = {{1--22}}, title = {{{Forschung in Innovationsarenen - Formate und Reflexionen einer gestaltungsorientierten Berufsbildungsforschung}}}, year = {{2017}}, } @article{6491, author = {{Kremer, H.-Hugo and Frehe, Petra}}, issn = {{00059536}}, journal = {{Berufsbildung}}, number = {{166}}, pages = {{21--24}}, title = {{{Qualifizierungsbausteine in ausbildungsvorbereitenden Bildungsgängen am Berufskolleg}}}, year = {{2017}}, } @inbook{6493, author = {{Frehe, Petra and Kremer, H.-Hugo}}, booktitle = {{Berufsschullehrerbildung in der Volksrepublik China und in der Bundesrepublik Deutschland. Professionalisierung - Kompetenzen - Herausforderungen}}, editor = {{Wang, J. and Feng, X. and Rützel, J.}}, isbn = {{9787560868509}}, pages = {{338--354}}, title = {{{Internationale Förderklassen an Berufskollegs. Ein ausbildungsvorbereitendes Anegbot!?}}}, year = {{2017}}, } @inbook{6496, author = {{Kremer, H.-Hugo and Frehe, Petra}}, booktitle = {{Berufsbildung für eine nachhaltige Entwicklung auf dem Weg in den (Unterrichts-)Alltag: Wie können Vernetzungsaktivitäten die Implementation unterstützen?}}, editor = {{Fischer, A. and Hahn, G.}}, pages = {{68--80}}, title = {{{Berufskollegübergreifende Entwicklungsverbünde - Innovationen für eine nachhaltige Bildungsarbeit vor Ort}}}, year = {{2017}}, } @inproceedings{65, abstract = {{Heterogeneous compute nodes in form of CPUs with attached GPU and FPGA accelerators have strongly gained interested in the last years. Applications differ in their execution characteristics and can therefore benefit from such heterogeneous resources in terms of performance or energy consumption. While performance optimization has been the only goal for a long time, nowadays research is more and more focusing on techniques to minimize energy consumption due to rising electricity costs.This paper presents reMinMin, a novel static list scheduling approach for optimizing the total energy consumption for a set of tasks executed on a heterogeneous compute node. reMinMin bases on a new energy model that differentiates between static and dynamic energy components and covers effects of accelerator tasks on the host CPU. The required energy values are retrieved by measurements on the real computing system. In order to evaluate reMinMin, we compare it with two reference implementations on three task sets with different degrees of heterogeneity. In our experiments, MinMin is consistently better than a scheduler optimizing for dynamic energy only, which requires up to 19.43% more energy, and very close to optimal schedules.}}, author = {{Lösch, Achim and Platzner, Marco}}, booktitle = {{Proceedings of the 28th Annual IEEE International Conference on Application-specific Systems, Architectures and Processors (ASAP)}}, title = {{{reMinMin: A Novel Static Energy-Centric List Scheduling Approach Based on Real Measurements}}}, doi = {{10.1109/ASAP.2017.7995272}}, year = {{2017}}, } @article{6540, abstract = {{Coherent phonons can greatly vary light–matter interaction in semiconductor nanostructures placed inside an optical resonator on a picosecond time scale. For an ensemble of quantum dots (QDs) as active laser medium, phonons are able to induce a large enhancement or attenuation of the emission intensity, as has been recently demonstrated. The physics of this coupled phonon–exciton–light system consists of various effects, which in the experiment typically cannot be clearly separated, in particular, due to the complicated sample structure a rather complex strain pulse impinges on the QD ensemble. Here we present a comprehensive theoretical study how the laser emission is affected by phonon pulses of various shapes as well as by ensembles with different spectral distributions of the QDs. This gives insight into the fundamental interaction dynamics of the coupled phonon–exciton–light system, while it allows us to clearly discriminate between two prominent effects: the adiabatic shifting of the ensemble and the shaking effect. This paves the way to a tailored laser emission controlled by phonons.}}, author = {{Wigger, Daniel and Czerniuk, Thomas and Reiter, Doris E and Bayer, Manfred and Kuhn, Tilmann}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, number = {{7}}, publisher = {{IOP Publishing}}, title = {{{Systematic study of the influence of coherent phonon wave packets on the lasing properties of a quantum dot ensemble}}}, doi = {{10.1088/1367-2630/aa78bf}}, volume = {{19}}, year = {{2017}}, } @article{6541, abstract = {{We report on the coherent optical response from an ensemble of (In,Ga)As quantum dots (QDs) embedded in a planar Tamm-plasmon microcavity with a quality factor of approximately 100. Significant enhancement of the light-matter interaction is demonstrated under selective laser excitation of those quantum dots which are in resonance with the cavity mode. The enhancement is manifested through Rabi oscillations of the photon echo, demonstrating coherent control of excitons with picosecond pulses at intensity levels more than an order of magnitude smaller as compared with bare quantum dots. The decay of the photon echo transients is weakly changed by the resonator, indicating a small decrease of the coherence time T2 which we attribute to the interaction with the electron plasma in the metal layer located close (40 nm) to the QD layer. Simultaneously we see a reduction of the population lifetime T1, inferred from the stimulated photon echo, due to an enhancement of the spontaneous emission by a factor of 2, which is attributed to the Purcell effect, while nonradiative processes are negligible, as confirmed from time-resolved photoluminescence.}}, author = {{Salewski, M. and Poltavtsev, S. V. and Kapitonov, Yu. V. and Vondran, J. and Yakovlev, D. R. and Schneider, C. and Kamp, M. and Höfling, S. and Oulton, R. and Akimov, I. A. and Kavokin, A. V. and Bayer, M.}}, issn = {{2469-9950}}, journal = {{Physical Review B}}, number = {{3}}, publisher = {{American Physical Society (APS)}}, title = {{{Photon echoes from (In,Ga)As quantum dots embedded in a Tamm-plasmon microcavity}}}, doi = {{10.1103/physrevb.95.035312}}, volume = {{95}}, year = {{2017}}, } @article{6542, abstract = {{Transient changes of the optical response of WS2 monolayers are studied by femtosecond broadband pump–probe spectroscopy. Time-dependent absorption spectra are analyzed by tracking the line width broadening, bleaching, and energy shift of the main exciton resonance as a function of time delay after the excitation. Two main sources for the pump-induced changes of the optical response are identified. Specifically, we find an interplay between modifications induced by many-body interactions from photoexcited carriers and by the subsequent transfer of the excitation to the phonon system followed by cooling of the material through the heat transfer to the substrate.}}, author = {{Ruppert, Claudia and Chernikov, Alexey and Hill, Heather M. and Rigosi, Albert F. and Heinz, Tony F.}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, keywords = {{Atomically thin 2D materials, carrier and phonon dynamics, ultrafast spectroscopy}}, number = {{2}}, pages = {{644--651}}, publisher = {{American Chemical Society (ACS)}}, title = {{{The Role of Electronic and Phononic Excitation in the Optical Response of Monolayer WS2 after Ultrafast Excitation}}}, doi = {{10.1021/acs.nanolett.6b03513}}, volume = {{17}}, year = {{2017}}, } @article{6543, abstract = {{Up to 400 mW of near-IR (1370-1500 nm) femtosecond pulses are generated from an optical parametric amplifier directly driven by a Yb:fiber oscillator delivering 100\&\#x00A0;fs pulses at 1036 nm. The process is seeded by a stable supercontinuum obtained from a photonic crystal fiber. We use a single pass through a 3 mm, magnesium oxide-doped, periodically poled LiNbO3 downconversion crystal to produce a near-IR pulse train with a remarkable power stability of 1.4 % (RMS) during one hour. Tuning is achieved by the temperature and the poling period of the nonlinear crystal.}}, author = {{Mundry, J. and Lohrenz, J. and Betz, M.}}, journal = {{Applied Optics}}, keywords = {{Infrared and far-infrared lasers, Ultrafast lasers, Nonlinear optics, parametric processes, Parametric oscillators and amplifiers, Femtosecond pulses, Fiber lasers, Fused silica, Laser systems, Photonic crystal fibers, Pulse propagation}}, number = {{11}}, pages = {{3104--3108}}, publisher = {{OSA}}, title = {{{Tunable femtosecond near-IR source by pumping an OPA directly with a 90 MHz Yb:fiber source}}}, doi = {{10.1364/AO.56.003104}}, volume = {{56}}, year = {{2017}}, } @article{6544, abstract = {{A picosecond acoustic pulse can be used to control the lasing emission from semiconductor nanostructures by shifting their electronic transitions. When the active medium, here an ensemble of (In,Ga)As quantum dots, is shifted into or out of resonance with the cavity mode, a large enhancement or suppression of the lasing emission can dynamically be achieved. Most interesting, even in the case when gain medium and cavity mode are in resonance, we observe an enhancement of the lasing due to shaking by coherent phonons. In order to understand the interactions of the nonlinearly coupled photon-exciton-phonon subsystems, we develop a semiclassical model and find an excellent agreement between theory and experiment.}}, author = {{Czerniuk, T. and Wigger, D. and Akimov, A. V. and Schneider, C. and Kamp, M. and Höfling, S. and Yakovlev, D. R. and Kuhn, T. and Reiter, D. E. and Bayer, M.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{13}}, publisher = {{American Physical Society (APS)}}, title = {{{Picosecond Control of Quantum Dot Laser Emission by Coherent Phonons}}}, doi = {{10.1103/physrevlett.118.133901}}, volume = {{118}}, year = {{2017}}, } @article{6545, abstract = {{We develop a nanoscopy method with in-depth resolution for layered photonic devices. Photonics often requires tailored light field distributions for the optical modes used, and an exact knowledge of the geometry of a device is crucial to assess its performance. The presented acousto-optical nanoscopy method is based on the uniqueness of the light field distributions in photonic devices: for a given wavelength, we record the reflectivity modulation during the transit of a picosecond acoustic pulse. The temporal profile obtained can be linked to the internal light field distribution. From this information, a reverse-engineering procedure allows us to reconstruct the light field and the underlying photonic structure very precisely. We apply this method to the slow light mode of an AlAs/GaAs micropillar resonator and show its validity for the tailored experimental conditions.}}, author = {{Czerniuk, T. and Schneider, C. and Kamp, M. and Höfling, S. and Glavin, B. A. and Yakovlev, D. R. and Akimov, A. V. and Bayer, M.}}, issn = {{2334-2536}}, journal = {{Optica}}, number = {{6}}, publisher = {{The Optical Society}}, title = {{{Acousto-optical nanoscopy of buried photonic nanostructures}}}, doi = {{10.1364/optica.4.000588}}, volume = {{4}}, year = {{2017}}, } @article{6552, author = {{Bause, Fabian and Claes, Leander and Webersen, Manuel and Johannesmann, Sarah and Henning, Bernd}}, issn = {{0171-8096}}, journal = {{tm - Technisches Messen}}, number = {{3}}, title = {{{Viskoelastizität und Anisotropie von Kunststoffen: Ultraschallbasierte Methoden zur Materialparameterbestimmung}}}, doi = {{10.1515/teme-2016-0056}}, volume = {{84}}, year = {{2017}}, } @inproceedings{6556, author = {{Claes, Leander and Chatwell, René Spencer and Vrabec, Jadran and Henning, Bernd}}, booktitle = {{PROCEEDINGS -- AMA Conferences 2017}}, isbn = {{978-3-9816876-4-4}}, pages = {{304--309}}, publisher = {{AMA Service GmbH}}, title = {{{A Spectral Approach to Acoustic Absorption Measurement}}}, doi = {{10.5162/sensor2017/C1.2}}, year = {{2017}}, } @inproceedings{6557, author = {{Claes, Leander and Jäger, Axel and Johannesmann, Sarah and Webersen, Manuel and Kupnik, Mario and Henning, Bernd}}, booktitle = {{PROCEEDINGS -- AMA Conferences 2017}}, isbn = {{978-3-9816876-4-4}}, pages = {{605--610}}, publisher = {{AMA Service GmbH}}, title = {{{Acoustic Material Characterization of Additively Manufactured Components}}}, doi = {{10.5162/sensor2017/P2.9}}, year = {{2017}}, }