Peak Wavelength Mapping of Triangular Reflection in Spherical Colloidal Cluster with Icosahedral Symmetry

• DOI: 10.4028/p-489m23
• Publication Date: 2023-03-30T16:50:36Z
• Authors: Ryosuke Ohnuki; Yukikazu Takeoka; Shinya Yoshioka
• Keywords: Circular symmetry; Reflection; Particle (ecology); Position (finance)

Spherical colloidal clusters have various types of particle arrangements. Interestingly, one type has an icosahedron symmetry, characterized by the existence five-fold axes. When size is comparable to wavelength light, icosahedral exhibit a unique triangular reflection with specific wavelength, owing optical interference. In this paper, we report results detailed study on position-dependent peak within region. Based map and spectral shape, propose structural model cluster discuss its formation process.