P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, and C. Silberhorn, “Driven Gaussian quantum walks,”10.1103/physreva.105.042210__Physical Review A, vol. 105, no. 4, Art. no. 042210, 2022, doi:10.1103/physreva.105.042210 .

B. Liu, L. Huang, and T. Zentgraf, “Efficient Third-harmonic Generation Control with Ultrathin Dielectric Geometric-phase Metasurface,”10.1364/cleo_qels.2022.fth1a.7__presented at the CLEO: QELS_Fundamental Science 2022, San Jose, USA, 2022, doi:10.1364/cleo_qels.2022.fth1a.7 .

F. Spreyer, C. Ruppert, P. Georgi, and T. Zentgraf, “Influence of Plasmon Resonances and Symmetry Effects on Second Harmonic Generation in W–Plasmonic Hybrid Metasurfaces,”10.1021/acsnano.1c06693__ACS Nano, vol. 15, no. 10, pp. 16719–16728, 2021, doi:10.1021/acsnano.1c06693 .

M. Santandrea, M. Stefszky, and C. Silberhorn, “General analytic theory of classical collinear three-wave mixing in a monolithic cavity,”10.1088/2040-8986/ac0b90__Journal of Optics, Art. no. 085803, 2021, doi:10.1088/2040-8986/ac0b90 .

M. Kismann, D. T. Riedl, and P. D. J. K. Lindner, “Ordered arrays of Si nanopillars with alternating diameters fabricated by nanosphere lithography and metal-assisted chemical etching,” Materials Science in Semiconductor Processing, 2021.

D. Emmrich, A. Wolff, N. Meyerbröker, J. Lindner, A. Beyer, and A. Gölzhäuser, “Scanning transmission helium ion microscopy on carbon nanomembranes,” Beilstein Journal of Nanotechnology, pp. 222–231, 2021.

D. Frese, Q. Wei, Y. Wang, M. Cinchetti, L. Huang, and T. Zentgraf, “Nonlinear Bicolor Holography Using Plasmonic Metasurfaces,” ACS Photonics, vol. 8, no. 4, pp. 1013–1019, 2021.

P. Georgi et al., “Optical secret sharing with cascaded metasurface holography,” Science Advances, vol. 7, no. 16, 2021.

S. S. Kruk, W. Gao, D.-Y. Choi, T. Zentgraf, S. Zhang, and Y. Kivshar, “Nonlinear Imaging of Nanoscale Topological Corner States,” Nano Letters, vol. 21, no. 11, pp. 4592–4597, 2021.

J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, and M. Betz, “Nonlinear metasurface combining telecom-range intersubband transitions in GaN/AlN quantum wells with resonant plasmonic antenna arrays,” Optical Materials Express, vol. 11, no. 7, 2021.

G. Yoon, T. Tanaka, T. Zentgraf, and J. Rho, “Recent progress on metasurfaces: applications and fabrication,” Journal of Physics D: Applied Physics, vol. 54, 2021.

T. Leuteritz et al., “Dielectric travelling wave antennas for directional light emission,” Optics Express, vol. 29, no. 10, 2021.

J. Lu et al., “Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology,”10.1126/sciadv.abl3903__Science Advances, vol. 7, no. 49, Art. no. eabl3903, 2021, doi:10.1126/sciadv.abl3903 .

D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, and T. Zentgraf, “A wavelength and polarization selective photon sieve for holographic applications,”10.1515/nanoph-2021-0440__Nanophotonics, vol. 10, no. 18, pp. 4543–4550, 2021, doi:10.1515/nanoph-2021-0440 .

S. De et al., “Effects of coherence on temporal resolution,”10.1103/physrevresearch.3.033082__Physical Review Research, vol. 3, no. 3, Art. no. 033082, 2021, doi:10.1103/physrevresearch.3.033082 .

V. Ansari et al., “Achieving the Ultimate Quantum Timing Resolution,”10.1103/prxquantum.2.010301__PRX Quantum, vol. 2, Art. no. 010301, 2021, doi:10.1103/prxquantum.2.010301 .

V. Roman-Rodriguez et al., “Continuous variable multimode quantum states via symmetric group velocity matching,”10.1088/1367-2630/abef96__New Journal of Physics, vol. 23, Art. no. 043012, 2021, doi:10.1088/1367-2630/abef96 .

L. Padberg, C. Eigner, M. Santandrea, and C. Silberhorn, “Production of waveguides made of materials from the KTP family.” 2021.

A. Ferreri et al., “Multimode integrated SU(1,1) interferometer,”10.1364/cleo_qels.2021.ftu1n.6__2021, doi:10.1364/cleo_qels.2021.ftu1n.6 .

E. Pelucchi et al., “The potential and global outlook of integrated photonics for quantum technologies,”10.1038/s42254-021-00398-z__Nature Reviews Physics, vol. 4, no. 3, pp. 194–208, 2021, doi:10.1038/s42254-021-00398-z .

J. Gil López et al., “Improved non-linear devices for quantum applications,”10.1088/1367-2630/ac09fd__New Journal of Physics, Art. no. 063082, 2021, doi:10.1088/1367-2630/ac09fd .

J. Gil López et al., “Universal compressive tomography in the time-frequency domain,”10.1364/optica.427645__Optica, Art. no. 1296, 2021, doi:10.1364/optica.427645 .

K. H. Luo et al., “Quantum optical coherence: From linear to nonlinear interferometers,”10.1103/physreva.104.043707__Physical Review A, 2021, doi:10.1103/physreva.104.043707 .

D. Bagrets et al., “Probing the topological Anderson transition with quantum walks,”10.1103/physrevresearch.3.023183__Physical Review Research, 2021, doi:10.1103/physrevresearch.3.023183 .

A. Geraldi et al., “Transient subdiffusion via disordered quantum walks,”10.1103/physrevresearch.3.023052__Physical Review Research, 2021, doi:10.1103/physrevresearch.3.023052 .

J. Tiedau, M. Engelkemeier, B. Brecht, J. Sperling, and C. Silberhorn, “Statistical Benchmarking of Scalable Photonic Quantum Systems,”10.1103/physrevlett.126.023601__Physical Review Letters, vol. 126, Art. no. 023601, 2021, doi:10.1103/physrevlett.126.023601 .

N. Prasannan, S. De, S. Barkhofen, B. Brecht, C. Silberhorn, and J. Sperling, “Experimental entanglement characterization of two-rebit states,”10.1103/physreva.103.l040402__Physical Review A, vol. 103, 2021, doi:10.1103/physreva.103.l040402 .

M. Riabinin, P. Sharapova, T. Bartley, and T. Meier, “Generating two-mode squeezing with multimode measurement-induced nonlinearity,”10.1088/2399-6528/abeec2__Journal of Physics Communications, vol. 5, no. 4, 2021, doi:10.1088/2399-6528/abeec2 .

J. Brockmeier et al., “Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging,”10.3390/cryst11091086__Crystals, Art. no. 1086, 2021, doi:10.3390/cryst11091086 .

M. Hajlaoui et al., “Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures,”10.1038/s41598-021-98569-6__Scientific Reports, vol. 11, Art. no. 19081, 2021, doi:10.1038/s41598-021-98569-6 .

M. Santandrea, M. Stefszky, G. Roeland, and C. Silberhorn, “Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation,”10.1364/oe.380788__Optics Express, Art. no. 5507, 2020, doi:10.1364/oe.380788 .

T. Chantakit et al., “All-dielectric silicon metalens for two-dimensional particle manipulation in optical tweezers,” Photonics Research, vol. 8, no. 9, pp. 1435–1440, 2020.

L. Zhu et al., “A dielectric metasurface optical chip for the generation of cold atoms,” Science Advances, vol. 6, no. 31, 2020.

M. Rosenthal, J. K. N. Lindner, U. Gerstmann, A. Meier, W. G. Schmidt, and R. Wilhelm, “A photoredox catalysed Heck reaction via hole transfer from a Ru(II)-bis(terpyridine) complex to graphene oxide ,” Royal Society of Chemistry , vol. 10, no. 42930–42937, 2020.

T. Zentgraf, S. Chen, G. Li, and S. Zhang, “Plasmonic metasurfaces for controlling harmonic generations,” in Nanoantennas and Plasmonics: Modelling, design and fabrication, D. H. Werner, S. D. Campbell, and L. Kang, Eds. The Institution of Engineering and Technology, 2020.

R. Tischendorf et al., “Examination of the evolution of iron oxide nanoparticles in flame spray pyrolysis by tailored in situ particle sampling techniques,” Journal of Aerosol Science, 2020.

J. Bürger, T. Riedl, and J. K. N. Lindner, “Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images,” Ultramicroscopy, 2020.

M. Stefszky et al., “Waveguide resonator with an integrated phase modulator for second harmonic generation,”10.1364/oe.412824__Optics Express, Art. no. 1991, 2020, doi:10.1364/oe.412824 .

B. Sain and T. Zentgraf, “Metasurfaces help lasers to mode-lock,” Light: Science &; Applications, vol. 9, p. 67, 2020.

H. Zhou et al., “Polarization-Encrypted Orbital Angular Momentum Multiplexed Metasurface Holography,” ACS Nano, vol. 14, no. 5, pp. 5553–5559, 2020.

C. Schlickriede, S. S. Kruk, L. Wang, B. Sain, Y. Kivshar, and T. Zentgraf, “Nonlinear imaging with all-dielectric metasurfaces,” Nano Letters, vol. 20, no. 6, pp. 4370–4376, 2020.

F. Spreyer, R. Zhao, L. Huang, and T. Zentgraf, “Second harmonic imaging of plasmonic Pancharatnam-Berry phase metasurfaces coupled to monolayers of W,” Nanophotonics, vol. 9, no. 2, pp. 351–360, 2020.

B. Liu et al., “Nonlinear Wavefront Control by Geometric-Phase Dielectric Metasurfaces: Influence of Mode Field and Rotational Symmetry,” Advanced Optical Materials, vol. 8, no. 9, 2020.

B. Atorf, H. Mühlenbernd, T. Zentgraf, and H.-S. Kitzerow, “All-optical switching of a dye-doped liquid crystal plasmonic metasurface,”10.1364/oe.383877__Optics Express, vol. 28, no. 6, pp. 8898–8908, 2020, doi:10.1364/oe.383877 .

J. Tiedau, T. Schapeler, V. Anant, H. Fedder, C. Silberhorn, and T. Bartley, “Single-channel electronic readout of a multipixel superconducting nanowire single photon detector,”10.1364/oe.383111__Optics Express, vol. 28, no. 4, Art. no. 5528, 2020, doi:10.1364/oe.383111 .

M. Santandrea, M. Stefszky, G. Roeland, and C. Silberhorn, “Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation.,”10.1364/oe.380788__Optics Express, vol. 28, no. 4, Art. no. 5507, 2020, doi:10.1364/oe.380788 .

S. Mukamel et al., “Roadmap on quantum light spectroscopy,”10.1088/1361-6455/ab69a8__Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 7, Art. no. 072002, 2020, doi:10.1088/1361-6455/ab69a8 .

E. Meyer-Scott, C. Silberhorn, and A. Migdall, “Single-photon sources: Approaching the ideal through         10.1063/5.0003320__multiplexing,”10.1063/5.0003320__Review of Scientific Instruments, vol. 91, no. 4, Art. no. 041101, 2020, doi:10.1063/5.0003320 .

T. Dirmeier et al., “Distillation of squeezing using an engineered pulsed parametric down-conversion source,”10.1364/oe.402178__Optics Express, vol. 28, no. 21, Art. no. 30784, 2020, doi:10.1364/oe.402178 .

C. Eigner, L. Padberg, M. Santandrea, H. Herrmann, B. Brecht, and C. Silberhorn, “Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides,”10.1364/oe.399483__Optics Express, vol. 28, no. 22, Art. no. 32925–32935, 2020, doi:10.1364/oe.399483 .