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  1. TFLN channel waveguides of rib and strip type: properties of guided modes

    This study provides a comprehensive modal analysis of thin-film lithium niobate (TFLN) channel waveguides with rib and strip geometries, considering various crystal cuts (X-cut and Z-cut) and on-chip orientations. The finite-element solver in JCMsuite was used to rigorously compute the guided modes, taking full account of the material anisotropy and complex permittivity tensors. The software enabled extensive parameter scans to reveal modal effective indices, symmetry classes, polarization properties, and hybridization effects critical for integrated photonic device design.

    M. Hammer, et al. TFLN channel waveguides of rib and strip type: properties of guided modes. Opt. Continuum 4, 2356 (2025).

    2025 DOI Publication link

    Photonic Waveguides and Fibers, integrated optics, nonlinear optics, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Propagation Mode Computation

  2. 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis

    This work presents a novel fiber-integrated square-core hollow-core waveguide (HCW) fabricated via 3D nanoprinting, enabling high-precision nanoparticle tracking analysis (NTA) with near-aberration-free imaging. Finite element modeling (FEM) simulations performed with JCMsuite software were used to analyze the intensity distribution, polarization, and modal attenuation of leaky core modes within the HCW. The simulations provided critical insights into the guiding mechanism (anti-resonance effect), confirmed the high-purity excitation of the fundamental mode from the fiber, and aided in the design of the waveguide for optimal performance in NTA experiments.

    D. Pereira, et al. 3D nanoprinted fiber-interfaced hollow-core waveguides for high-accuracy nanoparticle tracking analysis. Light Sci. Appl. 14, 197 (2025).

    2025 DOI Publication link

    Optical Metrology and Sensing, Photonic Waveguides and Fibers, integrated optics, Light Scattering Computation, Resonance Mode Computation

  3. On-chip hollow-core waveguides with integrated anti-resonant channels, enabled by 3D nanoprinting

    This work introduces a novel three-channel on-chip hollow-core waveguide design operating via the anti-resonant effect. To analyze the modal behavior, inter-channel coupling, and polarization-dependent losses, detailed finite element method (FEM) simulations were performed using JCMsuite. The numerical simulations were essential for understanding the underlying physical principles and guided the experimental validation of the nanoprinted structures.

    D. Pereira, et al. On-chip hollow-core waveguides with integrated anti-resonant channels, enabled by 3D nanoprinting. Opt. Express, 33, 30136 (2025).

    2025 DOI Publication link

    Optical Metrology and Sensing, Photonic Waveguides and Fibers, integrated optics, Light Scattering Computation, Resonance Mode Computation

  4. Resonance modes in microstructured photonic waveguides: efficient and accurate computation based on AAA rational approximation

    This work presents a framework for the efficient and accurate computation of fundamental resonance modes in photonic waveguides, based on the AAA rational approximation. The method computes modes selectively, prioritizing those most relevant by applying specially chosen light sources, thereby avoiding the need to calculate many unwanted modes (e.g., cladding or higher-order modes). The approach was demonstrated by computing the fundamental mode of a hollow-core photonic crystal fiber, with numerical solutions obtained using the finite element solver JCMsuite.

    F. Binkowski, et al. Resonance modes in microstructured photonic waveguides: efficient and accurate computation based on AAA rational approximation. Nanophotonics 14, 1665 (2025).

    2025 DOI Publication link

    Photonic Waveguides and Fibers, optical resonators and antennas, photonic crystals, Light Scattering Computation, Resonance Mode Computation

  5. Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides

    Optical propagation losses in thin-film lithium niobate waveguides are measured using the Fabry-Pérot method. A perturbational model attributing losses to sidewall roughness is developed to predict attenuation for different waveguide geometries. The finite-element solver in JCMsuite is used to rigorously compute the guided mode profiles of the idealized, lossless waveguides, which are essential for the loss estimation procedure.

    M. Hammer, et al. Estimation of losses caused by sidewall roughness in thin-film lithium niobate rib and strip waveguides. Opt. Express, 32, 22878 (2024).

    2024 DOI Publication link

    Photonic Waveguides and Fibers, integrated optics, nonlinear optics, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Propagation Mode Computation

  6. Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching

    This work investigates dielectric optical waveguides designed to suppress lateral leakage of TM-polarized modes, a common issue in standard rib waveguides with shallow etching. The proposed "plus-shaped" waveguide achieves this by using a vertically symmetric core structure. JCMsuite's fully vectorial finite-element eigensolver was used to compute and validate the modal properties, confirming the absence of leakage and loss for these symmetry-protected TM modes.

    N. Üstün, et al. Symmetry-protected TM modes in rib-like, plus-shaped optical waveguides with shallow etching. J. Opt. Soc. Am. B, 41, 2077 (2024).

    2024 DOI Publication link

    Photonic Waveguides and Fibers, integrated optics, Light Scattering Computation, Resonance Mode Computation

  7. Investigation of Mode Coupling Introduced by Forward Rayleigh Scattering

    The cross-talk introduced by Rayleigh scattering in multi-mode fibers within 10 modes is estimated analytically. To validate the analytic formulation, the modes are computed with JCMsuite.

    C. M. Spenner, et al. Investigation of Mode Coupling Introduced by Forward Rayleigh Scattering. Photonic Networks; 24th ITG-Symposium, 1-6 (2023).

    2023

    Photonic Waveguides and Fibers, Propagation Mode Computation

  8. 3D-nanoprinted on-chip antiresonant waveguide with hollow core and microgaps for integrated optofluidic spectroscopy

    For the application field of optofluidics and liquid-based spectroscopy, the properties of hollow-core microgap waveguides are investigated. A good agreement of numerical simulations and experiments is shown.

    J. Kim, et al. 3D-nanoprinted on-chip antiresonant waveguide with hollow core and microgaps for integrated optofluidic spectroscopy. Opt. Express, 31, 2833 (2023).

    2023 DOI Publication link

    Optical Metrology and Sensing, Photonic Waveguides and Fibers, Light Scattering Computation

  9. Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems

    The study presents a multi-GPU implementation to simulate the nonlinear signal propagation in multimode fibers. The mode profiles and propagation constants are calculated numerically with JCMsuite.

    M. Brehler, et al. Simulation of Nonlinear Signal Propagation in Multimode Fibers on Multi-GPU Systems. Communications in Nonlinear Science and Numerical Simulation, 84, 105150 (2020).

    2020 DOI Publication link

    Photonic Waveguides and Fibers, Propagation Mode Computation

  10. Silver nanowires with silica coating as plasmonic resonators

    JCMsuite is used to compare experimental results on silica coated, resonant nanowires to theoretical models.

    M. Rothe, et al. Silver nanowires with optimized silica coating as versatile plasmonic resonators. Sci. Rep. 9, 3859 (2019).

    2019 DOI

    Photonic Waveguides and Fibers, optical resonators and antennas, plasmonics, Propagation Mode Computation, Resonance Mode Computation

  11. Terahertz quantum-cascade lasers

    JCMsuite is used to compute modes of terahertz quantum-cascade lasers.

    B. Röben, et al. Terahertz quantum-cascade lasers for high-resolution spectroscopy of sharp absorption lines. J. Appl. Phys. 125, 151613 (2019).

    2019 DOI

    Photonic Waveguides and Fibers, Propagation Mode Computation

  12. Optimization of the Doping Profile in Fiber Amplifiers for Mode-Division Multiplexing

    Mode-division multiplexing allows to increase the capacity per fiber beyond the limits of single mode fiber systems. JCMsuite has been used to numerically investigate gain equalization for amplifiers in such systems. Step-index fibers as well as graded-index fibers have been investigated.

    S. Jeurink, et al. Optimization of the Erbium Doping Profile in Erbium-Doped Fiber Amplifiers for Mode-Division Multiplexing. IEEE Proc. Photonic Networks (2018).

    2018 DOI

    Photonic Waveguides and Fibers, Propagation Mode Computation

  13. Losses of single-mode waveguides with an arbitrary 2D trajectory

    JCMsuite has been used in the numerical analysis of photonic wire bonds. These are waveguides written with direct laser writing.

    F. Negredo, et al. Fast and reliable method to estimate losses of single-mode waveguides with an arbitrary 2D trajectory. J. Opt. Soc. Am. A 35, 1063 (2018).

    2018 DOI

    Photonic Waveguides and Fibers, integrated optics, Propagation Mode Computation

  14. Design of a plasmonic near-field tip for super-resolution IR-imaging

    A metallic near-field probe is designed that relies on plasmonic excitations and adiabatic field compression and allows for subwavelength field confinement.

    F. Ballout. Design of a plasmonic near-field tip for super-resolution IR-imaging. arXiv preprint 1605.04169 (2016).

    2016 Publication link

    Optical Metrology and Sensing, Photonic Waveguides and Fibers, plasmonics, Light Scattering Computation

  15. Supercontinuum generation with microstructured photonic crystal fibers based on fluoride glass

    FEM used to compute dispersion curves for modes in microstructured fibers.

    X. Jiang, et al. U.S. Patent No. 9362707B2 (2016).

    2016

    Light Sources, Photonic Waveguides and Fibers, nonlinear optics, Propagation Mode Computation

  16. Supercontinuum generation in solid-core photonic crystal fibres

    FEM simulations used in the theoretical analysis of PCF for supercontinuum generation.

    X. Jiang, et al. Deep-ultraviolet to mid-infrared supercontinuum generated in solid-core ZBLAN photonic crystal fibre. Nat. Photonics 9, 133 (2015).

    2015 DOI

    Light Sources, Photonic Waveguides and Fibers, nonlinear optics, Propagation Mode Computation

  17. Numerical optimization of a photon-to-plasmon coupler for quantum plasmonics

    An adaptive finite element method for full three dimensional simulations is used combined with the Taguchi method for optimization, for designing and optimizing an on-chip single- mode photon to surface plasmon coupler.

    G. Kewes, et al. Design and numerical optimization of an easy-to-fabricate photon-to-plasmon coupler for quantum plasmonics. Appl. Phys. Lett. 102, 051104 (2013).

    2013 DOI Publication link

    Photonic Waveguides and Fibers, plasmonics, quantum optics, Advanced Finite Element Methods

  18. Twisted photonic crystal fibers

    A helical twist of a microstructured fiber allows to control loss, dispersion, and polarization state of light. In this work, JCMsuite is used to simulate and quantitatively explain experimental results.

    G. Wong, et al. Excitation of orbital angular momentum resonances in helically twisted photonic crystal fiber. Science 337, 446 (2012).

    2012 DOI

    Photonic Waveguides and Fibers, optical chirality, Propagation Mode Computation, other methods

  19. Design of large-mode-area photonic bandgap rod fiber amplifiers

    JCMsuite is used in the design of large-mode-area fiber amplifiers

    T. T. Alkeskjold, et al. Single-mode ytterbium-doped large-mode-area photonic bandgap rod fiber amplifier. Opt. Express 19, 7398 (2011).

    2011 DOI Publication link

    Light Sources, Photonic Waveguides and Fibers, Propagation Mode Computation, Resonance Mode Computation, other methods

  20. Plasmon modes on submicron gold wire in photonic crystal fiber

    Surface plasmon modes on gold nanowires embedded to photonic crystal fibers are selectively excited. FEM simulations are in good agreement with the experimental results.

    H. W. Lee, et al. Polarization-dependent coupling to plasmon modes on submicron gold wire in photonic crystal fiber. Appl. Phys. Lett. 93, 111102 (2008).

    2008 DOI Publication link

    Photonic Waveguides and Fibers, plasmonics, Propagation Mode Computation