Efficient recursive algorithms in the invariant imbedding T-Matrix Method for computation of light scattering

• Applicant: Dr.-Ing. Thomas Wriedt
• Subject Area: Mechanical Process Engineering
• Term: from 2016 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 327332384

Efficient numerical simulation tools can help to understand light scattering interactions in optical particle characterization and to design new characterization methods. The objective of this project is to develop and test new efficient recursive algorithms in the invariant imbedding method to compute the T-matrix for large highly nonspherical and inhomogeneous particles and in this way to simulate light scattering by such particles. By considering the invariant imbedding T-Matrix Method in a systematic way starting from theory, followed by algorithm towards implementation we will look for recursive algorithms, which will make the method more effective. We will implement a full 3D variant of the method, which is not yet available and which will be progressing beyond the current state of the art. The new developed method will be included into the current integrated theoretical and computational framework of the (Null-Field Method with Discrete Sources) NFM-DS.

• DFG Programme: Research Grants
• Cooperation Partner: Privatdozent Dr.-Ing. Adrian Doicu