[25a-12B-1~10] 3.7 Optical measurement, instrumentation, and sensor (formerly 3.8)

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)

[25a-12B-7] Quantitative visualization of metal surface roughness by polarization probe polarization imaging

〇(M1)Tomoya Shimizu¹, Masato Suzuki^1,3, Moritsugu Sakamoto^1,3, Kohei Noda^1,3, Tomoyuki Sasaki^1,3, Ryosuke Harakawa¹, Masahiro Iwahashi¹, Nobuhiro Kawatsuki^2,3, Hiroshi Ono^1,3 (1.Nagaoka Univ. of Tech, 2.Univ. of Hyogo, 3.CREST, JST)

Keywords:

polarization imaging,stokes parameter,polarization grating

Polarized light imaging under polarized light irradiation can visualize more detailed information on the object because it is possible to acquire the action of many elements of the Muller matrix. We attempted a quantitative evaluation based on the surface condition (polish) of metal products in the industrial field using the polarized light scanning polarized light imaging method (hereinafter referred to as the PPPI method) in accordance with such a technique. As a result, we found that the smoother the unevenness distribution, the more the polarization resolution due to light scattering is suppressed, and the higher the polarization.