Håkon Jarand Dugstad Johnsen
Håkon Jarand Dugstad Johnsen
Postdoctoral Fellow
Department of Mechanical and Industrial EngineeringBackground and activities
Research interests
- Solar energy
- Nonimaging optics
- Numerical optimization
Journal papers
- “Line-focus solar concentration 10 times higher than the 2D thermodynamic limit”, in Optics Express, 2022.
- “Beyond the 2D limit: Étendue-squeezing line-focus solar concentrators”, in Optics Letters, 2020.
- “High-performance stationary solar tracking through multi-objective optimization of beam-steering lens arrays”, in Optics Express, 2020.
Conference papers
- “Pushing the limits of beam-steering lens arrays,” in Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XVI, 2019.
- “High-concentration wide-angle tracking integration with stacked lens arrays,” in 15th International Conference on Concentrator Photovoltaic Systems (CPV-15), 2019.
- “Solar tracking using beam-steering lens arrays,” in Nonimaging Optics: Efficient Design for Illumination and Solar Concentration XV, 2018.
Teaching
- TMM4112 Machine Elements (part of spring semester 2022)
Awards
- “Young Scientist Award” at The 18th International Conference on Concentrator Photovoltaics (CPV-18), 2022.
Other work
- “High-Concentration Freeform Microtracking Concentrators with Single-Axis External Tracking,” The 18th International Conference on Concentrator Photovoltaics (CPV-18), 2022. (Presentation. Slides)
- “Towards a High-Concentration Line-Focus Concentrator: Étendue-Squeezing and Tracking Integration?,” SolarPACES 2021, 2021. (Poster. Recording, PDF)
- “New approaches to solar tracking and concentration through numerical optimization of lens arrays,” PhD Defence Presentation, 2020. (Presentation. Recording)
- “Using the coldness of space: radiative cooling and power conversion,” PhD Defence Trial Lecture, 2020. (Presentation. Recording)
- “Beam-steering lens arrays and ètendue-squeezing: a pathway towards a new class of solar concentrators?,” SPIE Optics + Photonics 2020, 2020. (Presentation. Recording, Slides)
- “Pushing the limits of beam-steering lens arrays,” SPIE Optics + Photonics 2019, 2019. (Presentation. Recording, Slides)
- “Design and fabrication of beam steering lens arrays through raytracing and maskless grayscale lithography,” 10th Annual Workshop of the Norwegian PhD Network on Nanotechnology for Microsystems, 2019. (Presentation)
- “High-Concentration Wide-Angle Tracking Integration with Stacked Lens Arrays,” The 15th International Conference on Concentrator Photovoltaics (CPV-15), 2019. (Presentation. Slides)
- “Tracking-Integrated Solar Energy Using Stacked Lens Arrays,” Norwegian Solar Cell Conference (NSCC) 2019, 2019. (Poster)
- “Beam-steering lens arrays for solar tracking,” First NTNU Young Researcher Clean Energy Symposium, 2019. (Presentation)
- “Beam-steering lens arrays for solar tracking,” NTNU Nano Symposium 2018, 2018. (Presentation)
- “Solar tracking using beam-steering lens arrays,” SPIE Optics + Photonics 2018, 2018. (Presentation. Recording)
- “Interview: Håkon J. Dugstad Johnsen – Beam steering lens array for solar cooking,” SunPod podcast, 2018. (Podcast Interview)
- “Beam Steering Lens Array for Solar Cooking,” The 10th International SolarZentrum Conference for food quality, solar cooking, drying, farming, and gardening, 2018. (Invited Presentation)
- “Beam Steering Lens Array for Solar Cooking,” Consolfood 2018, 2018. (Presentation. Slides)