@inproceedings{23475,
  author       = {{Rose, Hendrik and Paul, Jagannath and Wahlstrand, Jared K. and Bristow, Alan D. and Meier, Torsten}},
  booktitle    = {{Ultrafast Phenomena and Nanophotonics XXV}},
  editor       = {{Betz, Markus and Elezzabi, Abdulhakem Y.}},
  title        = {{{Theoretical analysis and simulations of two-dimensional Fourier transform spectroscopy performed on exciton-polaritons of a quantum-well microcavity system}}},
  doi          = {{10.1117/12.2576696}},
  volume       = {{11684}},
  year         = {{2021}},
}

@article{37333,
  author       = {{Krauss-Kodytek, L. and Hannes, W.-R. and Meier, Torsten and Ruppert, C. and Betz, M.}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  number       = {{8}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Nondegenerate two-photon absorption in ZnSe: Experiment and theory}}},
  doi          = {{10.1103/physrevb.104.085201}},
  volume       = {{104}},
  year         = {{2021}},
}

@article{21547,
  author       = {{Riabinin, Matvei and Sharapova, Polina and Bartley, Tim and Meier, Torsten}},
  issn         = {{2399-6528}},
  journal      = {{Journal of Physics Communications}},
  number       = {{4}},
  title        = {{{Generating two-mode squeezing with multimode measurement-induced nonlinearity}}},
  doi          = {{10.1088/2399-6528/abeec2}},
  volume       = {{5}},
  year         = {{2021}},
}

@inproceedings{29203,
  abstract     = {{We present a monolithically integrated electronic-photonic Mach-Zehnder modulator with a linear, segmented driver on the same silicon substrate. As metric for the modulation efficiency, the external V$\pi$ is hereby reduced to only 420 mV.}},
  author       = {{Kress, Christian and Singh, Karanveer and Schwabe, Tobias and Preußler, Stefan and Schneider, Thomas and Scheytt, J. Christoph}},
  booktitle    = {{OSA Advanced Photonics Congress 2021}},
  keywords     = {{Analog to digital converters, Extinction ratios, Grating couplers, Modulation, Modulators, Phase shift}},
  pages        = {{IW1B.1}},
  publisher    = {{Optical Society of America}},
  title        = {{{High Modulation Efficiency Segmented Mach-Zehnder Modulator Monolithically Integrated with Linear Driver in 0.25 \textmum BiCMOS Technology}}},
  doi          = {{10.1364/IPRSN.2021.IW1B.1}},
  year         = {{2021}},
}

@article{29204,
  abstract     = {{An analysis of an optical Nyquist pulse synthesizer using Mach-Zehnder modulators is presented. The analysis allows to predict the upper limit of the effective number of bits of this type of photonic digital-to-analog converter. The analytical solution has been verified by means of electro-optic simulations. With this analysis the limiting factor for certain scenarios: relative intensity noise, distortions by driving the Mach-Zehnder modulator, or the signal generator phase noise can quickly be identified.}},
  author       = {{Kress, Christian and Bahmanian, Meysam and Schwabe, Tobias and Scheytt, J. Christoph}},
  journal      = {{Opt. Express}},
  keywords     = {{Analog to digital converters, Diode lasers, Laser sources, Phase noise, Signal processing, Wavelength division multiplexers}},
  number       = {{15}},
  pages        = {{23671–23681}},
  publisher    = {{OSA}},
  title        = {{{Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis}}},
  doi          = {{10.1364/OE.427424}},
  volume       = {{29}},
  year         = {{2021}},
}

@article{46135,
  author       = {{Schall, Johannes and Deconinck, Marielle and Bart, Nikolai and Florian, Matthias and Helversen, Martin and Dangel, Christian and Schmidt, Ronny and Bremer, Lucas and Bopp, Frederik and Hüllen, Isabell and Gies, Christopher and Reuter, Dirk and Wieck, Andreas D. and Rodt, Sven and Finley, Jonathan J. and Jahnke, Frank and Ludwig, Arne and Reitzenstein, Stephan}},
  issn         = {{2511-9044}},
  journal      = {{Advanced Quantum Technologies}},
  keywords     = {{Electrical and Electronic Engineering, Computational Theory and Mathematics, Condensed Matter Physics, Mathematical Physics, Nuclear and High Energy Physics, Electronic, Optical and Magnetic Materials, Statistical and Nonlinear Physics}},
  number       = {{6}},
  publisher    = {{Wiley}},
  title        = {{{Bright Electrically Controllable Quantum‐Dot‐Molecule Devices Fabricated by In Situ Electron‐Beam Lithography}}},
  doi          = {{10.1002/qute.202100002}},
  volume       = {{4}},
  year         = {{2021}},
}

@inproceedings{29219,
  abstract     = {{We demonstrate for the first time, to the best of our knowledge, reconfigurable and real-time orthogonal time-domain demultiplexing of coherent multilevel Nyquist signals in silicon photonics. No external pulse source is needed and frequencytime coherence is used to sample the incoming Nyquist OTDM signal with orthogonal sinc-shaped Nyquist pulse sequences using Mach-Zehnder modulators. All the parameters such as bandwidth and channel selection are completely tunable in the electrical domain. The feasibility of this scheme is demonstrated through a demultiplexing experiment over the entire C-band (1530 nm - 1550 nm), employing 24 Gbaud Nyquist QAM signals due to experimental constraints on the transmitter side. However, the silicon Mach-Zehnder modulator with a 3-dB bandwidth of only 16 GHz can demultiplex Nyquist pulses of 90 GHz optical bandwidth suggesting a possibility to reach symbol rates up to 90 GBd in an integrated Nyquist transceiver. }},
  author       = {{Misra, Arijit and Singh, Karanveer and Meier, Janosch and Kress, Christian and Schwabe, Tobias and Preussler, Stefan and Scheytt, J. Christoph and Schneider, Thomas}},
  booktitle    = {{Electrical Engineering and Systems Science}},
  title        = {{{Reconfigurable and Real-Time Nyquist OTDM Demultiplexing in Silicon Photonics}}},
  doi          = {{https://doi.org/10.1364/OE.454163}},
  year         = {{2021}},
}

@inbook{21587,
  abstract     = {{Solving partial differential equations on unstructured grids is a cornerstone of engineering and scientific computing. Nowadays, heterogeneous parallel platforms with CPUs, GPUs, and FPGAs enable energy-efficient and computationally demanding simulations. We developed the HighPerMeshes C++-embedded Domain-Specific Language (DSL) for bridging the abstraction gap between the mathematical and algorithmic formulation of mesh-based algorithms for PDE problems on the one hand and an increasing number of heterogeneous platforms with their different parallel programming and runtime models on the other hand. Thus, the HighPerMeshes DSL aims at higher productivity in the code development process for multiple target platforms. We introduce the concepts as well as the basic structure of the HighPerMeshes DSL, and demonstrate its usage with three examples, a Poisson and monodomain problem, respectively, solved by the continuous finite element method, and the discontinuous Galerkin method for Maxwell’s equation. The mapping of the abstract algorithmic description onto parallel hardware, including distributed memory compute clusters, is presented. Finally, the achievable performance and scalability are demonstrated for a typical example problem on a multi-core CPU cluster.}},
  author       = {{Alhaddad, Samer and Förstner, Jens and Groth, Stefan and Grünewald, Daniel and Grynko, Yevgen and Hannig, Frank and Kenter, Tobias and Pfreundt, Franz-Josef and Plessl, Christian and Schotte, Merlind and Steinke, Thomas and Teich, Jürgen and Weiser, Martin and Wende, Florian}},
  booktitle    = {{Euro-Par 2020: Parallel Processing Workshops}},
  isbn         = {{9783030715922}},
  issn         = {{0302-9743}},
  keywords     = {{tet_topic_hpc}},
  title        = {{{HighPerMeshes – A Domain-Specific Language for Numerical Algorithms on Unstructured Grids}}},
  doi          = {{10.1007/978-3-030-71593-9_15}},
  year         = {{2021}},
}

@article{24788,
  author       = {{Alhaddad, Samer and Förstner, Jens and Groth, Stefan and Grünewald, Daniel and Grynko, Yevgen and Hannig, Frank and Kenter, Tobias and Pfreundt, Franz‐Josef and Plessl, Christian and Schotte, Merlind and Steinke, Thomas and Teich, Jürgen and Weiser, Martin and Wende, Florian}},
  issn         = {{1532-0626}},
  journal      = {{Concurrency and Computation: Practice and Experience}},
  keywords     = {{tet_topic_hpc}},
  pages        = {{e6616}},
  title        = {{{The HighPerMeshes framework for numerical algorithms on unstructured grids}}},
  doi          = {{10.1002/cpe.6616}},
  year         = {{2021}},
}

@article{29209,
  abstract     = {{We demonstrate an optical arbitrary waveform measurement (OAWM) system that exploits a bank of silicon photonic (SiP) frequency-tunable coupled-resonator optical waveguide (CROW) filters for gapless spectral slicing of broadband optical signals. The spectral slices are coherently detected using a frequency comb as a multi-wavelength local oscillator (LO) and stitched together by digital signal processing (DSP). For high-quality signal reconstruction, we have implemented a maximum-ratio combining (MRC) technique based on precise calibration of the complex-valued opto-electronic transfer functions of all detection paths. In a proof-of-concept experiment, we demonstrate the viability of the scheme by implementing a four-channel system that offers an overall detection bandwidth of 140 GHz. Exploiting a femtosecond laser with precisely known pulse shape for calibration along with dynamic amplitude and phase estimation, we reconstruct 100 GBd QPSK, 16QAM and 64QAM optical data signals. The reconstructed signals show improved quality compared to that obtained with a single high-speed intradyne receiver, while the electronic bandwidth requirements of the individual coherent receivers are greatly reduced.}},
  author       = {{Fang, Dengyang and Zazzi, Andrea and Müller, Juliana and Dray, Daniel and Fullner, Christoph and Marin-Palomo, Pablo and Tabatabaei Mashayekh, Alireza and Dipta Das, Arka and Weizel, Maxim and Gudyriev, Sergiy and Freude, Wolfgang and Randel, Sebastian and Scheytt, J. Christoph and Witzens, Jeremy and Koos, Christian}},
  issn         = {{0733-8724}},
  journal      = {{Journal of Lightwave Technology}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  pages        = {{1--1}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Optical Arbitrary Waveform Measurement Using Silicon Photonic Slicing Filters}}},
  doi          = {{10.1109/jlt.2021.3130764}},
  year         = {{2021}},
}

@article{29211,
  abstract     = {{Electrical-optical signal processing has been shown to be a promising path to overcome the limitations of state-of-the-art all-electrical data converters. In addition to ultra-broadband signal processing, it allows leveraging ultra-low jitter mode-locked lasers and thus increasing the aperture jitter limited effective number of bits at high analog signal frequencies. In this paper, we review our recent progress towards optically enabled time- and frequency-interleaved analog-to-digital converters, as well as their monolithic integration in electronic-photonic integrated circuits. For signal frequencies up to 65 GHz, an optoelectronic track-and-hold amplifier based on the source-emitter-follower architecture is shown as a power efficient approach in optically enabled BiCMOS technology. At higher signal frequencies, integrated photonic filters enable signal slicing in the frequency domain and further scaling of the conversion bandwidth, with the reconstruction of a 140 GHz optical signal being shown. We further show how such optically enabled data converter architectures can be applied to a nonlinear Fourier transform based integrated transceiver in particular and discuss their applicability to broadband optical links in general.}},
  author       = {{Zazzi, Andrea and Müller, Juliana and Weizel, Maxim and Koch, Jonas and Fang, Dengyang and Moscoso-Martir, Alvaro and Tabatabaei Mashayekh, Ali and Das, Arka D. and Drays, Daniel and Merget, Florian and Kartner, Franz X. and Pachnicke, Stephan and Koos, Christian and Scheytt, J. Christoph and Witzens, Jeremy}},
  issn         = {{2644-1349}},
  journal      = {{IEEE Open Journal of the Solid-State Circuits Society}},
  pages        = {{209--221}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Optically Enabled ADCs and Application to Optical Communications}}},
  doi          = {{10.1109/ojsscs.2021.3110943}},
  volume       = {{1}},
  year         = {{2021}},
}

@article{29212,
  author       = {{Fang, Dengyang and Zazzi, Andrea and Müller, Juliana and Daniel, Drayß and Füllner, Christoph and Marin-Palomo, Pablo and Mashayekh, Ali Tabatabaei and Das, Arka Dipta and Weizel, Maxim and Gudyriev, Sergiy and Freude, Wolfgang and Randel, Sebastian and Scheytt, J. Christoph and Witzens, Jeremy and Koos, Christian}},
  isbn         = {{978-1-943580-86-6}},
  journal      = {{OSA Technical Digest}},
  title        = {{{Optical Arbitrary Waveform Measurement (OAWM) on the Silicon Photonic Platform}}},
  doi          = {{10.1109/JLT.2021.3130764}},
  year         = {{2021}},
}

@article{23476,
  author       = {{Weizel, Maxim and Scheytt, J. Christoph and Kärtner, Franz X. and Witzens, Jeremy}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  title        = {{{Optically clocked switched-emitter-follower THA in a photonic SiGe BiCMOS technology}}},
  doi          = {{10.1364/oe.425710}},
  year         = {{2021}},
}

@article{21362,
  author       = {{Xue, Yan and Chestnov, Igor and Sedov, Evgeny and Kiktenko, Evgeniy and Fedorov, Aleksey K. and Schumacher, Stefan and Ma, Xuekai and Kavokin, Alexey}},
  issn         = {{2643-1564}},
  journal      = {{Physical Review Research}},
  number       = {{1}},
  title        = {{{Split-ring polariton condensates as macroscopic two-level quantum systems}}},
  doi          = {{10.1103/physrevresearch.3.013099}},
  volume       = {{3}},
  year         = {{2021}},
}

@article{21359,
  author       = {{Barkhausen, Franziska and Pukrop, Matthias and Schumacher, Stefan and Ma, Xuekai}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  number       = {{7}},
  title        = {{{Structuring coflowing and counterflowing currents of polariton condensates in concentric ring-shaped and elliptical potentials}}},
  doi          = {{10.1103/physrevb.103.075305}},
  volume       = {{103}},
  year         = {{2021}},
}

@article{40250,
  author       = {{Jain, Mitisha and Gerstmann, Uwe and Schmidt, Wolf Gero and Aldahhak, Hazem}},
  issn         = {{0192-8651}},
  journal      = {{Journal of Computational Chemistry}},
  keywords     = {{Computational Mathematics, General Chemistry}},
  number       = {{6}},
  pages        = {{413--420}},
  publisher    = {{Wiley}},
  title        = {{{Adatom mediated adsorption of            <scp>N‐heterocyclic</scp>            carbenes on Cu(111) and Au(111)}}},
  doi          = {{10.1002/jcc.26801}},
  volume       = {{43}},
  year         = {{2021}},
}

@article{29747,
  author       = {{Jurgen von Bardeleben, Hans and Cantin, Jean-Louis and Gerstmann, Uwe and Schmidt, Wolf Gero and Biktagirov, Timur}},
  issn         = {{1530-6984}},
  journal      = {{Nano Letters}},
  keywords     = {{Mechanical Engineering, Condensed Matter Physics, General Materials Science, General Chemistry, Bioengineering}},
  number       = {{19}},
  pages        = {{8119--8125}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Spin Polarization, Electron–Phonon Coupling, and Zero-Phonon Line of the NV Center in 3C-SiC}}},
  doi          = {{10.1021/acs.nanolett.1c02564}},
  volume       = {{21}},
  year         = {{2021}},
}

@article{22010,
  author       = {{Aldahhak, Hazem and Hogan, Conor and Lindner, Susi and Appelfeller, Stephan and Eisele, Holger and Schmidt, Wolf Gero and Dähne, Mario and Gerstmann, Uwe and Franz, Martin}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  pages        = {{035303}},
  title        = {{{Electronic structure of the Si(111)3×3R30∘−B surface from theory and photoemission spectroscopy}}},
  doi          = {{10.1103/physrevb.103.035303}},
  volume       = {{103}},
  year         = {{2021}},
}

@inproceedings{40374,
  abstract     = {{<jats:p>We present a frequency multimode integrated SU (1,1) interferometer with a polarization converter and strong signal-idler photon correlations. Phase sensitivity below the shot noise limit is demonstrated, various filtering and seeding strategies are discussed.</jats:p>}},
  author       = {{Ferreri, A. and Santandrea, Matteo and Stefszky, Michael and Luo, Kai Hong and Herrmann, Harald and Silberhorn, Christine and Sharapova, Polina}},
  booktitle    = {{Conference on Lasers and Electro-Optics}},
  publisher    = {{Optica Publishing Group}},
  title        = {{{Multimode integrated SU(1,1) interferometer}}},
  doi          = {{10.1364/cleo_qels.2021.ftu1n.6}},
  year         = {{2021}},
}

@article{21360,
  author       = {{Luk, Samuel M. H. and Vergnet, Hadrien and Lafont, Ombline and Lewandowski, Przemyslaw and Kwong, Nai H. and Galopin, Elisabeth and Lemaitre, Aristide and Roussignol, Philippe and Tignon, Jérôme and Schumacher, Stefan and Binder, Rolf and Baudin, Emmanuel}},
  issn         = {{2330-4022}},
  journal      = {{ACS Photonics}},
  pages        = {{449--454}},
  title        = {{{All-Optical Beam Steering Using the Polariton Lighthouse Effect}}},
  doi          = {{10.1021/acsphotonics.0c01962}},
  year         = {{2021}},
}