Applications

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  1. 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

  2. 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

  3. Broadening the Ambit of Raman Solvation Shell Spectroscopy on Small Particle Dispersions

    This study investigates the hydrogen-bonding structure of water in the solvation shells of various nanoparticles (Ag, Au, ZnO, TiO₂) using Raman multivariate curve resolution (Raman-MCR) spectroscopy. To assess the influence of localized surface plasmon resonance (LSPR) on the spectral analysis, finite element method (FEM) simulations with JCMsuite were performed. These simulations calculated the electric field intensity enhancement around isolated nanoparticles, helping to interpret how the proximity of the laser wavelength to the particle's LSPR affects the magnitude of observed spectral differences between bulk and interfacial water.

    T. Mukherjee, et al. Broadening the Ambit of Raman Solvation Shell Spectroscopy on Small Particle Dispersions. J. Phys. Chem. C, 129, 17892–17901 (2025).

    2025 DOI Publication link

    Optical Metrology and Sensing, plasmonics, Light Scattering Computation

  4. Resolution enhancement methods in optical microscopy for dimensional optical metrology

    This review article discusses various super-resolution microscopy techniques for label-free dimensional nanometrology. Within the context of developing a suppression of scattering imaging (SUSI) technique for plasmonic nanostructures, JCMsuite's finite element solver was used to design gold grating test structures. The simulations aimed to maximize the ellipsometric contrast (amplitude ratio and phase shift) to identify sensitive resonance features prior to experimental implementation.

    M. Nouri, et al. Resolution enhancement methods in optical microscopy for dimensional optical metrology. J. Eur. Opt. Soc.-Rapid Publ. 21, 7 (2025).

    2025 DOI Publication link

    Optical Metrology and Sensing, diffractive optics, plasmonics, Light Scattering Computation

  5. Bright Electrically Contacted Circular Bragg Grating Resonators with Deterministically Integrated Quantum Dots

    This work presents the design and implementation of electrically contacted circular Bragg grating (CBG) resonators for cavity-enhanced quantum dot (QD) single-photon sources. The authors used the finite-element solver JCMsuite for full three-dimensional numerical simulations to model and optimize the photon extraction efficiency (PEE) of their novel ridge-based CBG designs. Furthermore, a Bayesian optimization algorithm within the JCMsuite framework was employed to determine the optimal device geometry parameters, such as ring widths, mesa radius, and ridge width, to maximize optical performance.

    S. Wijitpatima, et al. Bright Electrically Contacted Circular Bragg Grating Resonators with Deterministically Integrated Quantum Dots. ACS Nano, 18, 31834 (2024).

    2024 DOI Publication link

    Light Sources, optical resonators and antennas, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Optimization and Parameter Retrieval Methods

  6. Bulk-suppressed and surface-sensitive Raman scattering by transferable plasmonic membranes with irregular slot-shaped nanopores

    This work demonstrates a method to enhance the Raman signal from surfaces and thin films while suppressing interfering signals from the underlying bulk material using a transferable porous gold membrane (PAuM). JCMwave's finite element solver JCMsuite was used to numerically simulate the near-field enhancement and scattering properties of the plasmonic slot antennas within the PAuM. These simulations, analyzing nanostructures like a 10 nm x 68 nm slot, were crucial for understanding the enhancement mechanism and predicting the exponential decay of the Raman signal with distance from the surface.

    R. M. Wyss, et al. Bulk-suppressed and surface-sensitive Raman scattering by transferable plasmonic membranes with irregular slot-shaped nanopores. Nat. Commun., 15, 5236 (2024).

    2024 DOI Publication link

    Optical Metrology and Sensing, plasmonics, Advanced Finite Element Methods, Light Scattering Computation

  7. Introduction and application of a new approach for model-based optical bidirectional measurements

    A new model-based evaluation method for optical bidirectional measurements, such as linewidth determination on micro- and nanostructures, was developed. JCMsuite's rigorous finite element method (FEM) solver was used to simulate the microscope imaging process, incorporating a modified Hopkins' approximation for computational efficiency. The simulated and measured intensity profiles were compared within a Bayesian Target Vector Optimization (BTVO) framework, also provided by JCMwave, to reconstruct the linewidth and other parameters with high accuracy.

    J. Krüger, et al. Introduction and application of a new approach for model-based optical bidirectional measurements. Meas. Sci. Technol., 35, 085014 (2024).

    2024 DOI Publication link

    Optical Metrology and Sensing, Optical and EUV Lithography, Advanced Finite Element Methods, Optimization and Parameter Retrieval Methods

  8. Review and experimental benchmarking of machine learning algorithms for efficient optimization of cold atom experiments

    This work benchmarks nine different machine learning algorithms for optimizing a cold atom experiment, specifically a rubidium molasses system with 10 and 18 adjustable parameters, using the post-cooling atom number as the optimization target. The JCMsuite's Bayesian optimization tool was implemented and extended with a noise-aware strategy (Noisy Expected Improvement) to efficiently handle the inherently noisy experimental data. The benchmarking demonstrated that this enhanced appraoch performed best in terms of speed and final atom number, particularly in high-noise and high-dimensional scenarios, showcasing its utility for automating complex experimental tuning.

    O. Anton, et al. Review and experimental benchmarking of machine learning algorithms for efficient optimization of cold atom experiments. Mach. Learn.: Sci. Technol. 5, 025022 (2024).

    2024 DOI Publication link

    Optical Metrology and Sensing, quantum optics, Optimization and Parameter Retrieval Methods

  9. Self-Aligned Photonic Defect Microcavity Lasers with Site-Controlled Quantum Dots

    Researchers presented a novel, self-aligned method to fabricate strain-induced site-controlled microcavities (SCMs) and quantum dots (QDs), eliminating the need for any post-growth lithography. To investigate the optical properties of these microcavities, 3D electromagnetic simulations were performed using JCMsuite. These simulations were crucial for modeling the complex cavity geometry, calculating the fundamental optical mode, and extracting key parameters such as the theoretical Q-factor and mode volume.

    C.-W. Shih, et al. Self-Aligned Photonic Defect Microcavity Lasers with Site-Controlled Quantum Dots. Laser Photonics Rev. 18, 2301242 (2024).

    2024 DOI Publication link

    Light Sources, optical resonators and antennas, quantum optics, Advanced Finite Element Methods, Light Scattering Computation

  10. A Digital Twin for a Chiral Sensing Platform

    A digital twin for a nanophotonically enhanced chiral sensing platform was developed to predict and analyze circular dichroism (CD) measurements. The platform uses helicity-preserving optical cavities to significantly enhance the weak CD signal of chiral molecules. JCMsuite's finite element method solver was used to compute the T-matrices of the nanostructured cavity components, which are essential for the fast and efficient simulation of the entire system's optical response.

    M. Nyman, et al. A Digital Twin for a Chiral Sensing Platform. Laser Photon. Rev. 18, 2300967 (2024).

    2024 DOI Publication link

    Metamaterials, Optical Metrology and Sensing, optical chirality, Advanced Finite Element Methods, Light Scattering Computation

  11. A tiny Drude scatterer can accurately model a coherent emitter in nanophotonics

    This work introduces a new method to model Fourier-limited two-level systems (TLS), or coherent emitters, within classical Maxwell solvers. The authors represent an individual emitter as a tiny, resonant spherical scatterer made from an artificial Drude metal, which naturally reproduces the ideal scattering cross-section and adapts to the local density of states. JCMsuite was used for all finite element method (FEM) simulations to solve Maxwell's equations and benchmark the proposed model against known examples from the literature, including scattering from hybrid systems and the Purcell effect.

    F. Binkowski, S. Burger and G. Kewes. A tiny Drude scatterer can accurately model a coherent emitter in nanophotonics. Nanophotonics, 13, 4537–4543 (2024).

    2024 DOI Publication link

    optical resonators and antennas, plasmonics, quantum optics, Advanced Finite Element Methods, Light Scattering Computation

  12. Advances in Quantum Metrology with Dielectrically Structured Single Photon Sources Based on Molecules

    The authors present a new generation of molecule-based single-photon sources for quantum radiometry, integrating anthracene nanocrystals doped with dibenzoterrylene molecules into a polymeric microlens structure on a gold mirror. Finite element simulations with JCMsuite were performed to model the emission pattern and estimate the collection efficiency enhancement provided by the integrated microlens. The simulations predicted a factor of three enhancement in collection efficiency, guiding the device design and supporting the experimental observations.

    P. Lombardi, et al. Advances in Quantum Metrology with Dielectrically Structured Single Photon Sources Based on Molecules. Adv. Quantum Technol., 7, 2400107 (2024).

    2024 DOI Publication link

    Light Sources, Optical Metrology and Sensing, optical resonators and antennas, quantum optics, Light Scattering Computation

  13. Chiral plasmonic metasurface assembled by DNA origami

    This work explores the fabrication of a chiral plasmonic metasurface using bottom-up DNA origami technology to achieve strong circular dichroism (CD). The optical properties of the chiral metamolecule — a tripod decorated with gold nanorods — were simulated and optimized with JCMsuite. The software enabled full-wave finite-element calculations to retrieve the T-matrix, compute orientation-averaged CD spectra, and assess the feasibility of the metasurface design.

    N. Gieseler, et al. Chiral plasmonic metasurface assembled by DNA origami. Opt. Express, 32, 16040 (2024).

    2024 DOI Publication link

    Metamaterials, Optical Metrology and Sensing, optical chirality, plasmonics, Advanced Finite Element Methods, Light Scattering Computation

  14. 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

  15. High-quality single InGaAs/GaAs quantum dot growth on a silicon substrate for quantum photonic applications

    The authors demonstrate the direct epitaxial growth of high-quality InGaAs/GaAs quantum dots on a silicon substrate using a GaP buffer layer. The quantum dots exhibit excellent single-photon emission properties, including high photon extraction efficiency. Finite-element method simulations performed with JCMsuite were used to compute and verify the expected photon extraction efficiency of the planar sample design with a distributed Bragg reflector backside mirror.

    I. Limame, et al. High-quality single InGaAs/GaAs quantum dot growth on a silicon substrate for quantum photonic applications. Optica Quantum, Vol. 2, 117 (2024).

    2024 DOI Publication link

    Light Sources, quantum optics, Light Scattering Computation

  16. Microresonator-enhanced quantum dot single-photon emission in GaAs-on-insulator platform

    This work demonstrates a high-brightness quantum dot single-photon source integrated into a GaAs-on-insulator microring resonator. The authors performed finite element simulations using JCMsuite to calculate the theoretical quality factor of the microring cavity, which was a key parameter for estimating the Purcell enhancement and coupling efficiency of the quantum dot to the resonator modes. These simulations were essential for designing the photonic structure to optimize light-matter interaction.

    Y. Zhou, et al. Microresonator-enhanced quantum dot single-photon emission in GaAs-on-insulator platform. Mater. Quantum. Technol. 4, 045401 (2024).

    2024 DOI Publication link

    Light Sources, optical resonators and antennas, quantum optics, Light Scattering Computation

  17. Mixed noise and posterior estimation with conditional deepGEM

    This work develops an expectation-maximization algorithm for jointly estimating posterior distributions and mixed (additive and multiplicative Gaussian) noise parameters in Bayesian inverse problems. The authors apply their method to real-world applications in nanometrology, specifically EUV scatterometry for characterizing nanostructures. JCMsuite was used to simulate the complex optical forward model (solving Maxwell's equations) for a line grating with an oxide layer, generating the data necessary to train and validate their proposed deep learning framework.

    P. Hagemann, et al. Mixed noise and posterior estimation with conditional deepGEM. Mach. Learn.: Sci. Technol. 5, 035001 (2024).

    2024 DOI Publication link

    Optical Metrology and Sensing, software benchmarks, Advanced Finite Element Methods, Optimization and Parameter Retrieval Methods, Uncertainty Quantification Methods

  18. Numerical Investigation of a Coupled Micropillar – Waveguide System for Integrated Quantum Photonic Circuits

    This work presents the numerical design and optimization of a monolithic, on-chip single-photon source. The source consists of a whispering-gallery-mode micropillar laser evanescently coupled to a ridge waveguide containing a single quantum dot. The FEM solver JCMsuite was used to perform eigenmode and scattering simulations to optimize the device geometry, analyzing the impact of parameters like the pillar-waveguide gap distance and waveguide width on the coupling efficiency and resonator quality factor.

    L. J. Roche, et al. Numerical Investigation of a Coupled Micropillar – Waveguide System for Integrated Quantum Photonic Circuits. Adv. Quantum Technol., 7, 2400195 (2024).

    2024 DOI Publication link

    Light Sources, integrated optics, optical resonators and antennas, quantum optics, Advanced Finite Element Methods, Light Scattering Computation, Resonance Mode Computation

  19. Optical Analysis of Perovskite III-V Nanowires Interpenetrated Tandem Solar Cells

    This work presents an optical analysis and optimization of novel interpenetrated tandem solar cells combining perovskite top cells with indium phosphide (InP) nanowire (NW) array bottom cells. The study investigates both three-terminal (3T) and two-terminal (2T) configurations to minimize reflection and parasitic absorption losses. The optical modeling and rigorous electromagnetic simulations were performed using the finite element solver JCMsuite to calculate absorptance, reflectance, and photocurrent densities for various device geometries and material thicknesses.

    M. Tirrito, et al. Optical Analysis of Perovskite III-V Nanowires Interpenetrated Tandem Solar Cells. Nanomaterials, 14, 518 (2024).

    2024 DOI Publication link

    Photovoltaics, Advanced Finite Element Methods, Light Scattering Computation