Absorbance Simulation of Gold Octahedra

AI Thread Summary
The discussion focuses on simulating the absorption spectra of gold octahedra using the discrete dipole approximation (DDA), as traditional Mie Theory is unsuitable for non-spherical shapes. DDSCAT is identified as a tool capable of performing DDA, but the user expresses confusion due to a lack of programming knowledge and the frequent mention of Fortran and compilers. There is a request for additional information or updates on the topic to aid understanding and implementation. The conversation highlights the challenges faced by those unfamiliar with programming in utilizing advanced simulation tools. Further clarification and guidance on using DDSCAT for this purpose would be beneficial.
shinobi20
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I want to simulate the absorption spectra of gold octahedra when irradiated by a light source, according to the information I have gathered I can use discrete dipole approximation technique because octahedra is not spherical (in contrast to Mie Theory which is applicable to spherical particles). I also saw from some website that DDSCAT can run the discrete dipole approximation. I have no knowledge on programming or anything related to computers so I'm confused on what to do.

Fortran is always mentioned in those information and using some compilers, but I am lost.

DDSCAT https://code.google.com/p/ddscat/
 
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