[24a-13P-1~7] CS.2 Code-sharing Session of 3.4 & 3.13

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[24a-13P-4] Development of Flexible, Anisotropically Scattering Polydimethylsiloxane (PDMS) via Nanofoaming Techniques

Yushi Yoshioka¹, Riku Matsuzaki², Hiroaki Yoshioka¹, 〇Yuji Oki¹ (1.Kyushu Univ., 2.Eng. Kyushu Univ.)

Keywords:

Polydimetylsiloxane,Anisotropic Scattering,Low refractive index organic material

Physical bubbles were introduced into polydimethylsiloxane (PDMS), an organic siloxane material characterized by its ultraviolet transmittance, high elasticity, and low refractive index. This intervention effectively reduced the refractive index to below 1.4, while low scattering properties were maintained. Bubbles predominantly sized between 0.4-0.6 μm significantly contributed to the optical scattering cross-section, mainly through Mie scattering, exhibiting wavelength dependency. Anisotropic scattering within the material was also induced by this process.