Publications

2022 (18 Publications)
Germanium monosulfide as a natural platform for highly anisotropic THz polaritons T. Nörenberg, G. Álvarez-Pérez, M. Obst, L. Wehmeier, F. Hempel, J. M. Klopf, A. Y. Nikitin, S. C. Kehr*, L. M. Eng, P. Alonso-González*, and T. V. A. G. de Oliveira* ACS Nano 16, 20174–20185 (2022) arXiv:2110.13295	29 Nov 2022
Observation of room temperature excitons in an atomically thin topological insulator M. Syperek, R. Stühler, A. Consiglio, P. Holewa, P. Wyborski, L. Dusanowski, F. Reis, S. Höfling, R. Thomale, W. Hanke, R. Claessen, D. Di Sante, and C. Schneider Nature Communications 13, 6313 (2022) arXiv:2209.05915	23 Oct 2022
Exact Gravity Duals for Simple Quantum Circuits J. Erdmenger, M. Flory, M. Gerbershagen, M. P. Heller, and A. Weigel SciPost Physics 13, 061 (2022) arXiv:2112.12158	22 Sep 2022
Collective coupling of 3D confined optical modes in monolithic twin microtube cavities formed by nanomembrane origami X. Wang, Z. Wang, H. Dong, C. N. Saggau, H. Tang, M. Tang, L. Liu, S. Baunack, L. Bai, J. Liu, Y. Yin, L. Ma, and O. G. Schmidt Nano Lett. 22, 6692–6699 (2022)	08 Aug 2022
Plasmonic nanoparticles embedded in nanomembrane microcavity for flexible optical tuning C. Pang, R. Li, H. Dong, C. N. Saggau, F. L. Kern, P. Potapov, J. Schultz, A. Lubk, R. Hübner, U. Kentsch, S. Zhou, M. Helm, F. Chen, L. Ma, and O. G. Schmidt Adv. Optical Mater. 10, 2200765 (2022)	28 Jul 2022
Terahertz-slicing — an all-optical synchronization for 4th generation light sources M. Chen, T. V. A. G. de Oliveira, I. Ilyakov, T. Nörenberg, F. Kuschewski, J. Deinert, N. Awari, A. Ponomaryov, M. Kuntzsch, S. C. Kehr, L. M. Eng, M. Gensch, and S. Kovalev Optics Express 30, 26955-26966 (2022)	12 Jul 2022
Coaxial micro ring arrays fabricated on self-assembled microtube cavities for resonant light modulation C. N. Saggau, S. Valligatla, X. Wang, H. Dong, L. Ma, and O. G. Schmidt Laser & Photonics Reviews 16, 2200085 (2022)	01 Jul 2022
The Landé factors of electrons and holes in lead halide perovskites: universal dependence on the band gap E. Kirstein, D. R. Yakovlev, M. M. Glazov, E. A. Zhukov, D. Kudlacik, I. V. Kalitukha, V. F. Sapega, G. S. Dimitriev, M. A. Semina, M. O. Nestoklon, E. L. Ivchenko, N. E. Kopteva, D. N. Dirin, O. Nazarenko, M. V. Kovalenko, A. Baumann, J. Höcker, V. Dyakonov, and M. Bayer Nature Communications 13, 3062 (2022) arXiv:2112.15384	02 Jun 2022
Charged moments in W3 higher spin holography S. Zhao, C. Northe, K. Weisenberger, and R. Meyer Journal of High Energy Physics 2022, 166 (2022)	25 May 2022
Polariton condensates for classical and quantum computing A. Kavokin, T. C. H. Liew, C. Schneider, P. G. Lagoudakis, S. Klembt, and S. Hoefling Nat Rev Phys 4, (2022)	27 Apr 2022
Geometric phases distinguish entangled states in wormhole quantum mechanics F. S. Nogueira, S. Banerjee, M. Dorband, R. Meyer, J. van den Brink, and J. Erdmenger Phys. Rev. D 105, L081903 (2022) arXiv:2109.06190	19 Apr 2022
Spin dynamics of electrons and holes interacting with nuclei in MAPbI3 Perovskite single crystals E. Kirstein, D. Yakovlev, E. Zhukov, J. Höcker, V. Dyakonov, and M. Bayer ACS Photonics 9, 1375–1384 (2022) arXiv:2201.06867	11 Apr 2022
Electron–nuclear coherent coupling and nuclear spin readout through optically polarized VB– spin states in hBN F. Murzakhanov, G. Mamin, S. Orlinskii, U. Gerstmann, W. Schmidt, T. Biktagirov, I. Aharonovich, A. Gottscholl, A. Sperlich, V. Dyakonov, and V. Soltamov Nano Lett. 22, 2718–2724 (2022) arXiv:2112.10628	31 Mar 2022
Time-reversal symmetry-breaking charge order in a kagome superconductor C. Mielke, D. Das, J. Yin, H. Liu, R. Gupta, Y. Jiang, M. Medarde, X. Wu, H. Lei, J. Chang, P. Dai, Q. Si, H. Miao, R. Thomale, T. Neupert, Y. Shi, R. Khasanov, M. Hasan, H. Luetkens, and Z. Gugushia Nature 602, 245 (2022)	09 Feb 2022
Photon echo polarimetry of excitons and biexcitons in a ${\mathrm{CH}}_{3}{\mathrm{NH}}_{3}{\mathrm{PbI}}_{3}$ perovskite single crystal A. V. Trifonov, S. Grisard, A. N. Kosarev, I. A. Akimov, D. R. Yakovlev, J. Höcker, V. Dyakonov, and M. Bayer ACS Photonics 9, (2022)	01 Feb 2022
Towards quantifying information flows: relative entropy in deep neural networks and the renormalization group J. Erdmenger, K. Grosvenor, and R. Jefferson SciPost Physics 12, 041 (2022) arXiv:2107.06898	26 Jan 2022
Interfacial chemistry triggers ultrafast radiative recombination in metal halide perovskites H. Dong, C. Zhang, W. Nie, S. Duan, C. N. Saggau, M. Tang, M. Zhu, Y. S. Zhao, L. Ma, and O. G. Schmidt Angew. Chem. Int. Ed. 61, e202115875 (2022)	23 Jan 2022
Electro-optical switching of a topological polariton laser P. Gagel, T. H. Harder, S. Betzold, O. A. Egorov, J. Beierlein, H. Suchomel, M. Emmerling, A. Wolf, U. Peschel, S. Höfling, C. Schneider, and S. Klembt ACS Photonics 9, (2022)	21 Jan 2022

2021 (19 Publications)
Symmetry-resolved entanglement for excited states and two entangling intervals in AdS3/CFT2 K. Weisenberger, S. Zhao, C. Northe, and R. Meyer Journal of High Energy Physics 2021, 104 (2021) arXiv:2108.09210	16 Dec 2021
Long-lived spin-polarized intermolecular exciplex states in thermally activated delayed fluorescence-based organic light-emitting diodes S. Weissenseel, A. Gottscholl, R. Bönnighausen, V. Dyakonov, and A. Sperlich Science Advances 7, (2021)	17 Nov 2021
Quasi-1D exciton channels in strain-engineered 2D materials F. Dirnberger, J. D. Ziegler, P. E. F. Junior, R. Bushati, T. Taniguchi, K. Watanabe, J. Fabian, D. Bougeard, A. Chernikov, and V. M. Menon Science Advances 7, (2021)	29 Oct 2021
Far-infrared near-field optical imaging and kelvin probe force microscopy of laser-crystallized and -amorphized phase change material Ge3Sb2Te6 J. Barnett*, L. Wehmeier, A. Heßler, M. Lewin, J. Pries, M. Wuttig, J. M. Klopf, S. C. Kehr, L. M. Eng, and T. Taubner Nano Lett. 21, 9012–9020 (2021)	19 Oct 2021
Kagome Flatbands for Coherent Exciton-Polariton Lasing T. H. Harder, O. A. Egorov, C. Krause, J. Beierlein, P. Gagel, M. Emmerling, C. Schneider, U. Peschel, S. Höfling, and S. Klembt ACS Photonics 8, 3193-3200 (2021) arXiv:2011.10766	19 Oct 2021
Control of Emission Characteristics of Perovskite Lasers through Optical Feedback A. Palatnik, C. Cho, C. Zhan, M. Sudzius, M. Kroll, S. Meister, and K. Leo Advanced Photonics Research 2, 2100177 (2021)	07 Oct 2021
Topological insulator vertical-cavity laser array A. Dikopoltsev, T. H. Harder, E. Lustig, O. A. Egorov, J. Beierlein, A. Wolf, Y. Lumer, M. Emmerling, C. Schneider, S. Höfling, M. Segev, and S. Klembt Science 373, 1514-1517 (2021)	24 Sep 2021
Light detection nears its quantum limit S. Klembt Nature 597, 483-484 (2021)	22 Sep 2021
Perovskite origami for programmable microtube lasing H. Dong, C. N. Saggau, M. Zhu, J. Liang, S. Duan, X. Wang, H. Tang, Y. Yin, X. Wang, J. Wang, C. Zhang, Y. S. Zhao, L. Ma, and O. G. Schmidt Adv. Funct. Mater. 31, 2109080 (2021)	19 Sep 2021
Effects of the Linear Polarization of Polariton Condensates in Their Propagation in Codirectional Couplers E. Rozas, A. Yulin, J. Beierlein, S. Klembt, S. Höfling, O. Egorov, U. Peschel, I. A. Shelykh, M. Gundin, I. Robles-López, M. D. Martín, and L. Viña ACS Photonics 8, 2489-2497 (2021) arXiv:2105.14751	01 Aug 2021
Room-Temperature Topological Polariton Laser in an Organic Lattice M. Dusel, S. Betzold, T. H. Harder, M. Emmerling, J. Beierlein, J. Ohmer, U. Fischer, R. Thomale, C. Schneider, S. Höfling, and S. Klembt Nano Letters 21, 6398-6405 (2021) arXiv:2012.11945	30 Jul 2021
One-dimensional planar topological laser A. Palatnik, M. Sudzius, S. Meister, and K. Leo Nano Photonics 10, (2021)	07 Jul 2021
Probing subwavelength in-plane anisotropy with antenna-assisted infrared nano-spectroscopy Z. Yao, X. Chen, L. Wehmeier, S. Xu, Y. Shao, Z. Zeng, F. Liu, A. S. Mcleod, S. N. Gilbert Corder, M. Tsuneto, W. Shi, Z. Wang, W. Zheng, H. A. Bechtel, G. L. Carr, M. C. Martin, A. Zettl, D. N. Basov, X. Chen, L. M. Eng, S. C. Kehr, and M. Liu Nature Communications, 2649 (2021)	11 May 2021
Nonperturbative topological current in Weyl and Dirac semimetals in laser fields R. M. A. Dantas, Z. Wang, P. Surówka, and T. Oka Phys. Rev. B 103, L201105 (2021) arXiv:2008.04331	06 May 2021
Coherent Topological Polariton Laser T. H. Harder, M. Sun, O. A. Egorov, I. Vakulchyk, J. Beierlein, P. Gagel, M. Emmerling, C. Schneider, U. Peschel, I. G. Savenko, S. Klembt, and S. Höfling ACS Photonics 8, 1377-1384 (2021) arXiv:2005.14546	13 Apr 2021
Recent Progress on Optoplasmonic Whispering-Gallery-Mode Microcavities Y. Chen, Y. Yin, L. Ma, and O. G. Schmidt Advanced Optical Materials, 2100143 (2021)	07 Apr 2021
Sub-diffractional cavity modes of terahertz hyperbolic phonon polaritons in tin oxide F. H. Feres, R. A. Mayer, L. Wehmeier, F. C. B. Maia, E. R. Viana, A. Malachias, H. A. Bechtel, J. M. Klopf, L. M. Eng, S. C. Kehr, J. C. González, R. O. Freitas, and I. D. Barcelos Nature Communications, 1995 (2021)	31 Mar 2021
Compensating for artifacts in scanning near-field optical microscopy due to electrostatics T. Nörenberg, L. Wehmeier, D. Lang, S. C. Kehr, and L. M. Eng APL Photonics 6, 036102 (2021)	01 Mar 2021
Propagative Oscillations in Codirectional Polariton Waveguide Couplers J. Beierlein, E. Rozas, O. A. Egorov, M. Klaas, A. Yulin, H. Suchomel, T. H. Harder, M. Emmerling, M. D. Martín, I. A. Shelykh, C. Schneider, U. Peschel, L. Viña, S. Höfling, and S. Klembt Phys. Rev. Lett. 126, 075302 (2021) arXiv:2004.09348	16 Feb 2021

2020 (23 Publications)
Coherence and Interaction in Confined Room-Temperature Polariton Condensates with Frenkel Excitons S. Betzold, M. Dusel, O. Kyriienko, C. P. Dietrich, S. Klembt, J. Ohmer, U. Fischer, I. A. Shelykh, C. Schneider, and S. Höfling ACS Photonics 7, 384-392 (2020) arXiv:1906.02509	17 Dec 2020
Nanoscale-confined terahertz polaritons in a van der Waals crystal T. V. A. G. de Oliveira, T. Nörenberg, G. Álvarez-Pérez, L. Wehmeier, J. Taboada-Gutiérrez, M. Obst, F. Hempel, E. J. H. Lee, J. M. Klopf, I. Errea, A. Y. Nikitin, S. C. Kehr, P. Alonso-González, and L. M. Eng Adv. Mater. 33, 2005777 (2020) arXiv:2007.06342	03 Dec 2020
Identifying carbon as the source of visible single-photon emission from hexagonal boron nitride N. Mendelson, D. Chugh, J. R. Reimers, T. S. Cheng, A. Gottscholl, H. Long, C. J. Mellor, A. Zettl, V. Dyakonov, P. H. Beton, S. V. Novikov, C. Jagadish, H. H. Tan, M. J. Ford, M. Toth, C. Bradac, and I. Aharonovich Nature Materials 20, 321-328 (2020) arXiv:2003.00949	02 Nov 2020
Spatially confined vector fields at material-induced resonances in near-field-coupled systems H. Aminpour, L. M. Eng, and S. C. Kehr Opt. Express 28, 32316–32330 (2020)	26 Oct 2020
Selective Out-of-Plane Optical Coupling between Vertical and Planar Microrings in a 3D Configuration S. Valligatla, J. Wang, A. Madani, E. S. G. Naz, Q. Hao, C. N. Saggau, Y. Yin, L. Ma, and O. G. Schmidt Advanced Optical Materials 8, 2000782 (2020)	13 Oct 2020
Small-Polaron Hopping and Low-Temperature (45-225 K) Photo-Induced Transient Absorption in Magnesium-Doped Lithium Niobate S. Messerschmidt, A. Krampf, L. Vittadello, M. Imlau, T. Nörenberg, L. M. Eng, and D. Emin Crystals 10, 809 (2020)	14 Sep 2020
Steering Directional Light Emission and Mode Chirality through Postshaping of Cavity Geometry J. Wang, M. Tang, Y. Yang, Y. Yin, Y. Chen, C. N. Saggau, M. Zhu, X. Yuan, D. Karnaushenko, Y. Huang, L. Ma, and O. G. Schmidt Laser&Photonics Reviews 14, 2000118 (2020)	11 Sep 2020
Exciton-polaritons in flatland: Controlling flatband properties in a Lieb lattice T. H. Harder, O. A. Egorov, J. Beierlein, P. Gagel, J. Michl, M. Emmerling, C. Schneider, U. Peschel, S. Höfling, and S. Klembt Phys. Rev. B 102, 121302 (2020) arXiv:2002.05405	02 Sep 2020
Controllable coherent absorption of counterpropagating laser beams in organic microcavities C. Schmidt, M. Sudzius, S. Meister, H. Fröb, and K. Leo Appl. Phys. Lett. 117, 053301 (2020)	04 Aug 2020
Wafer-Scale High-Quality Microtubular Devices Fabricated via Dry-Etching for Optical and Microelectronic Applications C. N. Saggau, F. Gabler, D. D. Karnaushenko, D. Karnaushenko, L. Ma, and O. G. Schmidt Advanced Materials 32, 2003252 (2020)	19 Jul 2020
Impact of the Energetic Landscape on Polariton Condensates' Propagation along a Coupler E. Rozas, J. Beierlein, A. Yulin, M. Klaas, H. Suchomel, O. Egorov, I. A. Shelykh, U. Peschel, C. Schneider, S. Klembt, S. Höfling, M. D. Martín, and L. Viña Advanced Optical Materials 8, 2000650 (2020) arXiv:2004.08109	08 Jul 2020
Nanostructured Borate Halides for Optical Second Harmonic Generation at Surfaces D. Tan, B. Kirbus, L. M. Eng, and M. Ruck European Journal of Inorganic Chemistry 2020, 2465-2469 (2020)	09 Jun 2020
Room temperature Organic Exciton-Polariton Condensate in a Lattice M. Dusel, S. Betzold, O. A. Egorov, S. Klembt, J. Ohmer, U. Fischer, S. Höfling, and C. Schneider Nature Communications 11, (2020) arXiv:1907.05065	08 Jun 2020
Reciprocal skin effect and its realization in a topolectrical circuit T. Hofmann, T. Helbig, F. Schindler, N. Salgo, M. Brzezińska, M. Greiter, T. Kiessling, D. Wolf, A. Vollhardt, A. Kabaši, C. H. Lee, A. Bilušić, R. Thomale, and T. Neupert Phys. Rev. Research 2, 023265 (2020) arXiv:1908.02759	02 Jun 2020
Generalized bulk–boundary correspondence in non-Hermitian topolectrical circuits T. Helbig, T. Hofmann, S. Imhof, M. Abdelghany, T. Kiessling, L. W. Molenkamp, C. H. Lee, A. Szameit, M. Greiter, and R. Thomale Nature Physics 16, 747–750 (2020) arXiv:1907.11562	01 Jun 2020
Resource-Efficient Low-Temperature Synthesis of Microcrystalline $Pb_2B_5O_9X$ (X = $Cl$, $Br$) for Surfaces Studies by Optical Second Harmonic Generation D. Tan, B. Kirbus, M. Rüsing, T. Pietsch, M. Ruck, and L. M. Eng Small 16, 2000857 (2020)	11 May 2020
Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array J. Beierlein, O. A. Egorov, T. H. Harder, P. Gagel, M. Emmerling, C. Schneider, S. Höfling, U. Peschel, and S. Klembt Advanced Optical Materials 9, 2100126 (2020) arXiv:2012.14281	04 May 2020
Orbital-Driven Rashba Effect in a Binary Honeycomb Monolayer $AgTe$ M. Ünzelmann, H. Bentmann, P. Eck, T. Kißlinger, B. Geldiyev, J. Rieger, S. Moser, R. C. Vidal, K. Kißner, L. Hammer, M. A. Schneider, T. Fauster, G. Sangiovanni, D. Di Sante, and F. Reinert Phys. Rev. Lett. 124, 176401 (2020) arXiv:1912.05210	29 Apr 2020
Influence of Irradiation on Defect Spin Coherence in Silicon Carbide C. Kasper, D. Klenkert, Z. Shang, D. Simin, A. Gottscholl, A. Sperlich, H. Kraus, C. Schneider, S. Zhou, M. Trupke, W. Kada, T. Ohshima, V. Dyakonov, and G. V. Astakhov Phys. Rev. Applied 13, 044054 (2020) arXiv:1908.06829	21 Apr 2020
Topological funneling of light S. Weidemann, M. Kremer, T. Helbig, T. Hofmann, A. Stegmaier, M. Greiter, R. Thomale, and A. Szameit Science 368, 311-314 (2020) arXiv:https://arxiv.org/ftp/arxiv/papers/2004/2004.01990.pdf	17 Apr 2020
Phonon-induced near-field resonances in multiferroic $BiFeO_3$ thin films at infrared and THz wavelengths L. Wehmeier, T. Nörenberg, T. V. A. G. de Oliveira, J. M. Klopf, S. Yang, L. W. Martin, R. Ramesh, L. M. Eng, and S. C. Kehr Appl. Phys. Lett. 116, 071103 (2020)	19 Feb 2020
Correlating the Nanoscale Structural, Magnetic, and Magneto-Transport Properties in $SrRuO_3$-Based Perovskite Thin Films: Implications for Oxide Skyrmion Devices G. Malsch, D. Ivaneyko, P. Milde, L. Wysocki, L. Yang, P. H. M. van Loosdrecht, I. Lindfors-Vrejoiu, and L. M. Eng ACS Applied Nano Materials 3, 1182-1190 (2020) arXiv:1910.01474	08 Jan 2020
Giant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi Z. Ni, K. Wang, Y. Zhang, O. Pozo, B. Xu, X. Han, K. Manna, J. Paglione, C. Felser, A. G. Grushin, F. de Juan, E. J. Mele, and L. Wu Nature Communications 12, (2020) arXiv:2006.09612	08 Jan 2020

2019 (3 Publications)
Polarization-dependent near-field phonon nanoscopy of oxides: $SrTiO_3, LiNbO_3$, and $PbZr_{0.2}Ti_{0.8}O_3$ L. Wehmeier, D. Lang, Y. Liu, X. Zhang, S. Winnerl, L. M. Eng, and S. C. Kehr Phys. Rev. B 100, 035444 (2019)	29 Jul 2019
Anatomy of skin modes and topology in non-Hermitian systems C. H. Lee and R. Thomale Phys. Rev. B 99, 201103 (2019) arXiv:1809.02125	08 May 2019
Demonstration of a two-dimensional ${\cal P}{\cal T}$-symmetric crystal M. Kremer, T. Biesenthal, L. J. Maczewsky, M. Heinrich, R. Thomale, and A. Szameit Nature Communications 10, 435 (2019) arXiv:1809.00041	25 Jan 2019