Applications

Reset

  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. Sawfish Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications

    A novel "Sawfish" photonic crystal cavity design is proposed for interfacing solid-state quantum emitters, specifically tin vacancy centers in diamond, with optical fibers for quantum network applications. The design was optimized to maximize the Purcell-enhanced emission coupling efficiency and adiabatic mode conversion from the nanocavity into a single-mode fiber. Full 3D finite element method (FEM) simulations and Bayesian optimization performed with JCMsuite were used to design and optimize the cavity, waveguide, and fiber coupling geometry, and to analyze its robustness to fabrication tolerances using surrogate modeling.

    J. M. Bopp, et al. Sawfish Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications. Adv. Optical Mater. 12, 2301286 (2024).

    2024 DOI Publication link

    optical resonators and antennas, photonic crystals, quantum optics, Light Scattering Computation, Optimization and Parameter Retrieval Methods

  14. 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

  15. Core-Shell Nanoparticle Resonances in Near-Field Microscopy Revealed by Fourier-demodulated Full-wave Simulations

    This work presents a detailed investigation of the near-field optical response of core-shell nanoparticles using Fourier-demodulated full-wave simulations. The authors employed JCMsuite to simulate the scattering-type scanning near-field optical microscopy (s-SNOM) measurement process for cylindrically symmetric samples. These simulations, which closely mimic the experimental procedure, were used to explore the complex interplay of geometrical and optical resonances within core-shell nanostructures, revealing significant resonance shifts and enhanced scattering effects.

    D. Dai, et al. Core-Shell Nanoparticle Resonances in Near-Field Microscopy Revealed by Fourier-demodulated Full-wave Simulations. Nano Letters, 24(43), 13747 (2024).

    2024 DOI Publication link

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

  16. Proposal for a Tunable Room-Temperature Single-Photon Source Based on a Plasmonic Nanoantenna Driven by Inelastic Tunneling

    This work proposes a novel nanoantenna design for generating single photons at room temperature via inelastic tunneling in the Coulomb blockade regime. The proposed "SelfSiM" (Self-Similar nanoparticle on Mirror) antenna merges concepts from nanoparticle-on-mirror and self-similar antennas to simultaneously boost the local density of optical states and achieve efficient photon outcoupling. The authors used JCMsuite to perform 3D finite-element method (FEM) simulations of Maxwell's equations, analyzing the antenna's Purcell factor, radiative efficiency, and eigenmodes to validate and optimize the design.

    G. Kewes and O. Benson. Proposal for a Tunable Room‐Temperature Single‐Photon Source Based on a Plasmonic Nanoantenna Driven by Inelastic Tunneling in the Coulomb Regime. Phys. Status Solidi A, 221, 2300366 (2024).

    2024 DOI Publication link

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

  17. Comprehensive assessment of terahertz quantum-cascade lasers performance characteristics

    The authors present a comprehensive method to characterize the electrical, optical, and thermal performance of terahertz quantum-cascade lasers (THz QCLs). To analyze the laser waveguides and decouple the influence of different resonator parameters, the optical waveguide losses were calculated using JCMsuite's finite element method solver. The simulation of a two-dimensional waveguide cross-section was essential for determining the intrinsic waveguide loss and effective refractive index, which were used to separate the contributions of transparency current and various optical losses to the laser threshold.

    V. Pistore, et al. Comprehensive assessment of terahertz quantum-cascade lasers performance characteristics. J. Appl. Phys. 136, 194506 (2024).

    2024 DOI Publication link

    Light Sources, optical resonators and antennas, Light Scattering Computation, Propagation Mode Computation

  18. Crossing of the Branch Cut: The Topological Origin of a Universal 2Pi-Phase Retardation in Non-Hermitian Metasurfaces

    Poles and zeros are computed with JCMsuite to generate a basic understanding of how to engineer electromagnetic fields at material interface e.g. metasurfaces. This knowledge can be used to generate full wavefront control of optical components which require spatial phase modulation of incoming beams with a phase from 0 to 2 pi.

    R. Colom, et al. Crossing of the Branch Cut: The Topological Origin of a Universal 2𝝅-Phase Retardation in Non-Hermitian Metasurfaces. Laser & Photonics Reviews, 17, 2200976 (2023).

    2023 DOI Publication link

    Metamaterials, integrated optics, Advanced Finite Element Methods, Light Scattering Computation

  19. Correlated Disorder Substrate-Integrated Nanodisk Scatterers for Light Extraction in Organic Light Emitting Diodes

    The waveguide mode loss of the layer stack in an OLED is investigated via numerical analysis with JCMsuite. To improve this type of loss, an OLED with nanodisk scatterers integrated into the substrate is presented, numerically investigated, and discussed.

    P. M. Piechulla, et al., Correlated Disorder Substrate-Integrated Nanodisk Scatterers for Light Extraction in Organic Light Emitting Diodes. Advanced Optical Materials, 11, 2202557 (2023).

    2023 DOI Publication link

    Light Sources, optical resonators and antennas, Light Scattering Computation, Resonance Mode Computation