TY - GEN
T1 - Limits of the light scattering by small metallic particles using evolutionary topology optimization
AU - Kaya, Mine
AU - Hajimirza, Shima
N1 - Publisher Copyright:
© Begell House Inc. 2020.
PY - 2019
Y1 - 2019
N2 - The interaction between light and subwavelength structures provide tailorable optical properties which can be useful in many engineering applications. These properties strongly depend on the material shape which provides obtaining unique scattering characteristics when rigorously designed. However, the conventional design methods require precise modeling and characterization of the shapes of the scattering objects, thus requiring a lot of intuition and knowledge about light radiation at small scales. We propose a framework to discover new nanoparticle designs for improved scattering based on topology optimization. The framework allows us to maximize scattering cross section of the particle domain. Increased scattering cross section at nano-scale leads to improved light trapping which is critical in many applications such as more efficient thin film solar cells. Topology optimization suggests a knowledge independent design procedure therefore revealing relationships between certain regions in the design domain and the light behavior for maximum scattering cross section.
AB - The interaction between light and subwavelength structures provide tailorable optical properties which can be useful in many engineering applications. These properties strongly depend on the material shape which provides obtaining unique scattering characteristics when rigorously designed. However, the conventional design methods require precise modeling and characterization of the shapes of the scattering objects, thus requiring a lot of intuition and knowledge about light radiation at small scales. We propose a framework to discover new nanoparticle designs for improved scattering based on topology optimization. The framework allows us to maximize scattering cross section of the particle domain. Increased scattering cross section at nano-scale leads to improved light trapping which is critical in many applications such as more efficient thin film solar cells. Topology optimization suggests a knowledge independent design procedure therefore revealing relationships between certain regions in the design domain and the light behavior for maximum scattering cross section.
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U2 - 10.1615/RAD-19.200
DO - 10.1615/RAD-19.200
M3 - Conference contribution
AN - SCOPUS:85082339719
T3 - Proceedings of the International Symposium on Radiative Transfer
SP - 163
EP - 170
BT - Proceedings of the 9th International Symposium on Radiative Transfer, RAD 2019
T2 - 9th International Symposium on Radiative Transfer, RAD 2019
Y2 - 3 June 2019 through 7 June 2019
ER -