Applications

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  1. Grazing incidence x-ray fluorescence based profile reconstruction

    Rigorous field simulations obtained from a Maxwell solver (JCMsuite) in combination with Bayesian optimization allow to determine the spatial distribution of elemental species and the geometrical shape with sub-nm resolution.

    A. Andrle, et al. Grazing incidence x-ray fluorescence based characterization of nanostructures for element sensitive profile reconstruction. Proc. SPIE 11057, 110570M (2019).

    2019 DOI

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

  2. Element sensitive reconstruction of nanostructured surfaces with finite elements and grazing incidence soft X-ray fluorescence

    The geometry of lamellar gratings is investigated experimentally with reference-free grazing-incidence X-ray fluorescence analysis. The demonstrated combination of GIXRF and finite-element simulations paves the way for a versatile characterization of nanoscale-structured surfaces.

    V. Soltwisch, et al. Element sensitive reconstruction of nanostructured surfaces with finite elements and grazing incidence soft X-ray fluorescence. Nanoscale 10, 6177 (2018).

    2018 DOI

    Optical Metrology and Sensing, Optical and EUV Lithography, Light Scattering Computation, Optimization and Parameter Retrieval Methods

  3. Numerical design for micropillar quantum light sources

    JCMsuite has been used for design and investigation of micropillars with site-controlled quantum dots.

    A. Kaganskiy, et al. Micropillars with a controlled number of site-controlled quantum dots. Appl. Phys. Lett. 112, 071101 (2018).

    2018 DOI Publication link

    Light Sources, optical resonators and antennas, quantum optics, Resonance Mode Computation

  4. Design of front textures for solar cells

    JCMsuite is used for quantitative design of textures for efficient solar cells.

    S. Nanz, et al. Light‐Trapping Front Textures for Solar Cells from Tailored Mixtures of Nanospheres: A Numerical Study. Phys. Status Solidi A 215, 1800699 (2018).

    2018 DOI

    Photovoltaics, diffractive optics, Light Scattering Computation

  5. Enhanced the photon-extraction efficiency of quantum dots by using microlenses

    Deterministically fabricated microlenses are used to realized high extraction efficiency from single quantum dots. FEM simulations allow for device design.

    A. Kaganskiy, et al. Enhancing the photon-extraction efficiency of site-controlled quantum dots by deterministically fabricated microlenses, Opt. Commun. 413, 162 (2018).

    2018 DOI

    Light Sources, other fields, quantum optics, Advanced Finite Element Methods, Light Scattering Computation

  6. Strong coupling in plasmonic resonators

    The questions whether strong coupling can be achieved with a single molecule and how this is proven is addressed in a numerical study using JCMsuite.

    G. Kewes, et al. Heuristic Modeling of Strong Coupling in Plasmonic Resonators. ACS Photonics 5, 4089 (2018).

    2018 DOI

    optical resonators and antennas, quantum optics, Resonance Mode Computation, other methods

  7. Nanophotonic Light Management for Perovskite-Silicon Tandem Solar Cells.

    Numerical simulations are used to study how well hexagonal sinusoidal nanotextures in the perovskite top-cell can reduce the reflective losses of the combined tandem device.

    D. Chen, et al. Nanophotonic Light Management for Perovskite-Silicon Tandem Solar Cells. J. Photonics Energy, 8, 022601 (2018).

    2018 DOI Publication link

    Photovoltaics, Light Scattering Computation

  8. Nanophotonic-Enhanced Two-Photon-Excited Photoluminescence of Perovskite Quantum Dots

    Experimental and numerical analysis allows to relate two-photon-pumped photoluminescence of quantum dots to near field enhancement effects in photonic crystals.

    C. Becker, et al. Nanophotonic-Enhanced Two-Photon-Excited Photoluminescence of Perovskite Quantum Dots. ACS Photonics 5, 4668 (2018).

    2018 DOI Publication link

    diffractive optics, nonlinear optics, photonic crystals, quantum optics, Light Scattering Computation

  9. Numerical optimization of the extraction efficiency of a quantum-dot based single-photon emitter into a single-mode fiber

    The publication introduces a finite-element method for the accurate and efficient simulation of strongly localized light sources, such as quantum dots, embedded in dielectric micro-optical structures. The method is applied in order to optimize the photon extraction efficiency of a single-photon emitter and to study the robustness of the extraction efficiency with respect to fabrication errors and defects.

    P.-I. Schneider, et al. Numerical optimization of the extraction efficiency of a quantum-dot based single-photon emitter into a single-mode fiber. Opt. Express 26, 8479 (2018).

    2018 DOI Publication link

    Light Sources, quantum optics, Advanced Finite Element Methods

  10. 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

  11. Optimize rough backreflectors of solar cells

    Full wave FEM simulations are used to reliably design light-trapping surface textures.

    S. Nanz, et al. Strategy for tailoring the size distribution of nanospheres to optimize rough backreflectors of solar cells. Opt. Express 26, A111 (2018).

    2018 DOI Publication link

    Metamaterials, Photovoltaics, Light Scattering Computation

  12. Optimization of free-form shapes using a global optimization method

    Optimizing free-form shapes of photonic nanostructures is a high-dimensional problem. A Bayesian optimization algorithm with a hyper-parameter learning routine is applied to optimize the shape of a reflecting meta-surface.

    X. Garcia-Santiago, et al. Shape design of a reflecting surface using Bayesian Optimization. J. Phys.: Conf. Ser. 963, 012003 (2018).

    2018 DOI Publication link

    Metamaterials, diffractive optics, Optimization and Parameter Retrieval Methods

  13. Quantum dot micropillar arrays for applications in photonic information processing

    Dense quantum dot micropillar arrays have been fabricated and investigated experimentally. The impact of design parameters like the diameter of the micropillars on Q-factors is investigated numerically using JCMsuite.

    T. Heuser, et al. Fabrication of dense diameter-tuned quantum dot micropillar arrays for applications in photonic information processing. APL Photonics 3, 116103 (2018).

    2018 DOI Publication link

    Light Sources, optical resonators and antennas, quantum optics, Resonance Mode Computation

  14. Single Quantum Dot with Microlens and 3D-Printed Micro-objective as Integrated Bright Single-Photon Source

    A bright single-photon source realized by on-chip integration of a deterministic quantum dot microlens with a 3D-printed multilens micro-objective is demonstrated. FEM simulations are used for optical design.

    S. Fischbach, et al. Single Quantum Dot with Microlens and 3D-Printed Micro-objective as Integrated Bright Single-Photon Source. ACS Photonics 4, 1327 (2018).

    2018 DOI

    Light Sources, diffractive optics, quantum optics, Light Scattering Computation

  15. Computing resonance wavelengths and quality factors in photonic crystal membrane line defect cavities

    JCMsuite has been used in a benchmark study for computing resonances in high-Q cavities. Exponential convergence with finite element degree p is demonstrated to be a valuable measure for reliability of the respective numerical method.

    J. R. de Lasson, et al. Benchmarking five numerical simulation techniques for computing resonance wavelengths and quality factors in photonic crystal membrane line defect cavities. Opt. Express 26, 11366 (2018).

    2018 DOI

    integrated optics, optical resonators and antennas, photonic crystals, Resonance Mode Computation, software benchmarks

  16. 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

  17. Simulations of thin-film solar cells with a thick glass superstrate

    Hexagonal sinusoidal nanotextured silica-silicon interfaces are studied in numerical simulations. A comparison with experimental data reveals that higher-order corrections can predict the measured reflectivity of the samples much better than an often-applied zeroth-order correction.

    K. Jäger, et al. On accurate simulations of thin-film solar cells with a thick glass superstrate. Opt. Express 26, A99 (2018).

    2018 DOI Publication link

    Photovoltaics, Light Scattering Computation, other methods

  18. Evaluating the effects of modeling errors for isolated finite three-dimensional targets

    Optical three-dimensional (3-D) nanostructure metrology utilizes a model-based metrology approach to determine critical dimensions (CDs) that are well below the inspection wavelength. A project at the National Institute of Standards and Technology is evaluating how to attain key CD and shape parameters from engineered in-die capable metrology targets. The performance of simplified models is validated using highly accurate, fully 3D simulations.

    M. A. Henn, et al. Evaluating the effects of modeling errors for isolated finite three-dimensional targets. J. of Micro/Nanolithography, MEMS, and MOEMS, 16, 044001 (2017).

    2017 DOI

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