Hammer, Manfred, Henna Farheen, and Jens Förstner. “How to Suppress Radiative Losses in High-Contrast Integrated Bragg Gratings.”https://doi.org/10.1364/josab.485725__Journal of the Optical Society of America B 40, no. 4 (2023): 862.https://doi.org/10.1364/josab.485725 .

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast Circular Step-Index Fiber.”https://doi.org/10.1117/12.2612179__In Complex Light and Optical Forces XVI, edited by David L. Andrews, Enrique J. Galvez, and Halina Rubinsztein-Dunlop, 120170F. SPIE, 2022.https://doi.org/10.1117/12.2612179 .

Nikbakht, Hamed, Mohammad Talebi Khoshmehr, Bob van Someren, Dieter Teichrib, Manfred Hammer, Jens Förstner, and B. Imran Akca. “Asymmetric, Non-Uniform 3-DB Directional Coupler with 300-Nm Bandwidth and a Small Footprint.”https://doi.org/10.1364/ol.476537__Optics Letters 48, no. 2 (2022): 207.https://doi.org/10.1364/ol.476537 .

Ebers, Lena, Alessandro Ferreri, Manfred Hammer, Maximilian Albert, Cedrik Meier, Jens Förstner, and Polina R. Sharapova. “Flexible Source of Correlated Photons Based on LNOI Rib Waveguides.”https://doi.org/10.1088/2515-7647/ac5a5b__Journal of Physics: Photonics 4 (2022): 025001.https://doi.org/10.1088/2515-7647/ac5a5b .

Hammer, Manfred. “Small-Scale Online Simulations in Guided-Wave Photonics.”https://doi.org/10.1117/12.2612208__In Integrated Optics: Devices, Materials, and Technologies XXVI, edited by Sonia M. García-Blanco and Pavel Cheben, 1200414. SPIE, 2022.https://doi.org/10.1117/12.2612208 .

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of Guided Waves with High-Order Optical Angular Momentum.”https://doi.org/10.1364/josab.422731__Journal of the Optical Society of America B 38, no. 5 (2021): 1717.https://doi.org/10.1364/josab.422731 .

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Configurable Lossless Broadband Beam Splitters for Semi-Guided Waves in Integrated Silicon Photonics.”https://doi.org/10.1364/osac.437549__OSA Continuum 4, no. 12 (2021): 3081.https://doi.org/10.1364/osac.437549 .

Höpker, Jan Philipp, Varun B Verma, Maximilian Protte, Raimund Ricken, Viktor Quiring, Christof Eigner, Lena Ebers, et al. “Integrated Superconducting Nanowire Single-Photon Detectors on Titanium in-Diffused Lithium Niobate Waveguides.”https://doi.org/10.1088/2515-7647/ac105b__Journal of Physics: Photonics 3 (2021): 034022.https://doi.org/10.1088/2515-7647/ac105b .

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Hybrid Coupled Mode Modelling of the Evanescent Excitation of a Dielectric Tube by Semi-Guided Waves at Oblique Angles.”https://doi.org/10.1007/s11082-020-02595-z__Optical and Quantum Electronics 52 (2020).https://doi.org/10.1007/s11082-020-02595-z .

Ebers, Lena, Manfred Hammer, and Jens Förstner. “Light Diffraction in Slab Waveguide Lenses Simulated with the Stepwise Angular Spectrum Method.”https://doi.org/10.1364/oe.409612__Optics Express 28, no. 24 (2020): 36361.https://doi.org/10.1364/oe.409612 .

Protte, Maximilian, Lena Ebers, Manfred Hammer, Jan Philipp Höpker, Maximilian Albert, Viktor Quiring, Cedrik Meier, Jens Förstner, Christine Silberhorn, and Tim Bartley. “Towards Semiconductor-Superconductor-Crystal Hybrid Integration for Quantum Photonics.”https://doi.org/10.1364/quantum.2020.qth7a.8__In OSA Quantum 2.0 Conference, 2020.https://doi.org/10.1364/quantum.2020.qth7a.8 .

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Quasi-Lossless Excitation of a Thin Silicon Slab Waveguide: A Guided-Wave Variant of an Anti-Reflection Coating.”https://doi.org/10.1364/josab.36.002395__Journal of the Optical Society of America B 36 (2019): 2395.https://doi.org/10.1364/josab.36.002395 .

Ebers, Lena, Manfred Hammer, Manuel B. Berkemeier, Alexander Menzel, and Jens Förstner. “Coupled Microstrip-Cavities under Oblique Incidence of Semi-Guided Waves: A Lossless Integrated Optical Add-Drop Filter.”https://doi.org/10.1364/osac.2.003288__OSA Continuum 2 (2019): 3288.https://doi.org/10.1364/osac.2.003288 .

Hammer, Manfred, Jens Förstner, and Lena Ebers. “Optical Transition between Two Optical Waveguides Layer and Method for Transmitting Light,” 2019.

Hammer, Manfred, Lena Ebers, and Jens Förstner. “Oblique Evanescent Excitation of a Dielectric Strip: A Model Resonator with an Open Optical Cavity of Unlimited Q.”https://doi.org/10.1364/OE.27.009313__Optics Express 27, no. 7 (2019): 8.https://doi.org/10.1364/OE.27.009313 .

Ebers, Lena, Manfred Hammer, and Jens Förstner. “Oblique Incidence of Semi-Guided Planar Waves on Slab Waveguide Steps: Effects of Rounded Edges.”https://doi.org/10.1364/OE.26.018621__Optics Express 26, no. 14 (2018): 18621–32.https://doi.org/10.1364/OE.26.018621 .

Hammer, Manfred, Lena Ebers, Andre Hildebrandt, Samer Alhaddad, and Jens Förstner. “Oblique Semi-Guided Waves: 2-D Integrated Photonics with Negative Effective Permittivity.”https://doi.org/10.1109/mmet.2018.8460455__In 2018 IEEE 17th International Conference on Mathematical Methods in Electromagnetic Theory (MMET). IEEE, 2018.https://doi.org/10.1109/mmet.2018.8460455 .

Hammer, Manfred. “Guided Wave Interaction in Photonic Integrated Circuits — A Hybrid Analytical/Numerical Approach to Coupled Mode Theory.” In Recent Trends in Computational Photonics, edited by Arti Agrawal, 204th ed., 204:77–105.  Springer Series in Optical Sciences Book Series. Springer, 2017.

Hammer, Manfred, Samer Alhaddad, and Jens Förstner. “Hybrid Coupled-Mode Modeling in 3D: Perturbed and Coupled Channels, and Waveguide Crossings.”https://doi.org/10.1364/josab.34.000613__Journal of the Optical Society of America B 34, no. 3 (2017): 613–24.https://doi.org/10.1364/josab.34.000613 .

Ebers, Lena, Manfred Hammer, and Jens Förstner. “Spiral Modes Supported by Circular Dielectric Tubes and Tube Segments.”https://doi.org/10.1007/s11082-017-1011-x__Optical and Quantum Electronics 49, no. 4 (2017): 49:176.https://doi.org/10.1007/s11082-017-1011-x .