Peter Bermel

The profile picture for Peter Bermel
Peter Bermel's Impact Graph

Contributions

Online Presentations (1-25 of 94)

  1. Symposium on Nanomaterials for Energy: Photonic Nanostructures for Enabling High-Efficiency Thermophotovoltaics

    14 May 2015 | Online Presentations | Contributor(s): Peter Bermel

    Thermophotovoltaic (TPV) systems generate electricity using heat drawn from one or more of a wide variety of sources, including sunlight, fossil fuels, and radioisotopes. They function as solid-state devices, in which heat is thermally radiated as photons onto TPV modules that generate...

  2. Surprising Nanophotonic Phenomena in Nature and Photonic Modeling with S4

    17 Aug 2016 | Online Presentations | Contributor(s): Peter Bermel

    I will show how S4sim, a transfer matrix-based optical simulation tool available on nanoHUB.org can be used to precisely calculate these behaviors. A few exciting real-world applications of this work will also be briefly discussed.

  3. Surprising Nanophotonic Phenomena in Nature

    11 Jul 2016 | Online Presentations | Contributor(s): Peter Bermel

    A broad range of optical phenomena in nature have created long-standing mysteries. For example, what gives butterflies and birds their rich colors? And how can sightings of some unusual natural phenomena like mirages or ball lightning be explained? The process of solving these mysteries has...

  4. Semiconductor Characterization

    10 Oct 2017 | Online Presentations | Contributor(s): Peter Bermel

  5. nanoHUB-U Nanophotonics Modeling: Scientific Overview

    01 Aug 2014 | Online Presentations | Contributor(s): Peter Bermel

    A five week course on Nanophotonic Modeling.

  6. Leveraging Computational Research to Engage Industry

    01 Oct 2018 | Online Presentations | Contributor(s): Peter Bermel

    In this talk, I will discuss the big picture goals of my research group, and how simulation plays a central role in our efforts. I will then discuss how these efforts can be leveraged to engage industry. I will recount some of my experiences over the last decade with startups and...

  7. Failures in Photovoltaic Modules

    21 Apr 2015 | Online Presentations | Contributor(s): Peter Bermel

    In this talk, I will discuss some of the major sources of performance degradation for common glass-encapsulated PV modules, including crystalline silicon and thin films. The greatest reliability challenges have occurred in the latter, with recent studies showing that thin-film modules operating...

  8. ECE 695NS Lecture 9: Fast Fourier Transforms

    17 Feb 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Fourier AnalysisSampling TheoremDiscrete Fourier TransformsNaïve approachDanielson-Lanczos lemmaCooley-Tukey algorithmVariations of DFTsCorrelation MeasurementsFourier Signal ProcessingFFTWRationalePlanning and Executing DFTsApplication Examples

  9. ECE 695NS Lecture 8: Photonic Bandstructures in MPB

    22 Feb 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Reformulating the EigenproblemSquare Rod Lattice BandstructureTriangular Rod Lattice BandstructurePlotting BandstructuresVisualizing FieldsMaximizing BandgapsDiamond LatticeFinding and Tuning Point Defects

  10. ECE 695NS Lecture 7: Photonic Bandstructure Calculations

    27 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Maxwell eigenproblemMatrix decompositionsReformulating the eigenproblemsIterative eigensolversConjugate gradient solversPreconditionersDavidson solversTargeted solvers

  11. ECE 695NS Lecture 6: Photonic Bandstructures

    27 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Bandstructure symmetries2D Photonic bandstructuresPhotonic waveguide bandstructuresPhotonic slab bandstructures3D Photonic lattice types + bandstructures

  12. ECE 695NS Lecture 5: Bandstructures for Electro-optic Systems

    27 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Bandstructure problemBloch's theoremPhotonic bandstructures1D2D

  13. ECE 695NS Lecture 4: Eigenproblems for Electro-optic Systems

    25 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Electrostatics PotentialsSolving Ax = bSpin arraysSolving eigenproblemsBandstructure problemBloch's theoremPhotonic bandstructures1D2D

  14. ECE 695NS Lecture 3: Practical Assessment of Code Performance

    25 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Time ScalingExamplesGeneral performance strategiesComputer architecturesMeasuring code speedReduce strengthMinimize array writesProfiling

  15. ECE 695NS Lecture 37: Preparing for our Final Presentations

    04 May 2017 | Online Presentations | Contributor(s): Peter Bermel

  16. ECE 695NS Lecture 36: Addressing Engineerings Grand Challeges

    26 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

  17. ECE 695NS Lecture 35: Solar Hybrid Energy Conversion Systems

    04 May 2017 | Online Presentations | Contributor(s): Peter Bermel

  18. ECE 695NS Lecture 32: Finite-Difference Time Domain Band Structures II

    08 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Inverse Opal Photonic Crystals:Photonic Band StructuresPhotonic Crystal PhosphorsPhoton recycling in PVGaAs thin filmsNanowire solar cellsCharacterization of PV materialsTime-resolved photoluminescencePlasmonic structures

  19. ECE 695NS Lecture 31: Finite-Difference Time Domain Band Structures I

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Photonic Crystal Waveguides:Photonic BandstructureDefect Resonant ModesWaveguide TransmissionInverse Opal Photonic Crystals:Photonic Band StructuresPhotonic Crystal Phosphors

  20. ECE 695NS Lecture 30: Finite-Difference Time Domain in MEEPPV

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

  21. ECE 695NS Lecture 2: Computability and NP-hardness

    13 Jan 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:OverviewDefinitionsComputing MachinesChurch-Turing ThesisPolynomial Time (Class P)Class NPNon-deterministic Turing machinesReducibilityCook-Levin theoremCoping with NP Hardness

  22. ECE 695NS Lecture 29: Finite-Difference Time Domain in MEEP II

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:MEEP Tutorial examples:Multimode ring resonatorsIsolating individual resonancesKerr nonlinearitiesQuantifying third-harmonic generationRandom and correlated random textured structures 

  23. ECE 695NS Lecture 28: Finite-Difference Time Domain in MEEP I

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:MEEP InterfacesMEEP ClassesTutorial examples:WaveguideMultimode ring resonatorsIsolating individual resonancesKerr nonlinearitiesQuantifying third-harmonic generationRandom and correlated random textured structures 

  24. ECE 695NS Lecture 27: Finite-Difference Time Domain

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Introduction to FDTDSpecial features of MEEP:Perfectly matched layersSubpixel averagingSymmetryScheme (programmable) interfaceExamples:Periodic light-trapping structuresRandom and correlated random textured structurtes

  25. ECE 695NS Lecture 24: Preparing Your Final Presentation

    04 Apr 2017 | Online Presentations | Contributor(s): Peter Bermel

    Outline:Slide 1: Title SlideSlide 2-3: Problem DescriptionSlide 4-5: Mathematical Model FormulationSlide 6-7: Proposed Problem SolutionSlide 8-10: Problem Solution ImplementatiomSlide 11-12: Results and Conclusions