24 November 2016 Spin Hall effect of light applied in optical linear scale
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Abstract
We propose a linear scale of carbon nanotube (CNT) detected by the spin Hall effect of light (SHEL). The SHEL is a phenomena about a correlation between spin angular momentum and orbital angular momentum. When the light reflects on a surface of a dielectric surface, the SHEL gives a slightly position changing of the light about sub-10-nm scale and devides light to two polarized lights. On the other hand, CNT has giant circular dichroism. By re ection on a dielectric surface with the CNT, there is absorption for one of the lights generated by the SHEL and amount of the absorption depends on a position of the CNT. In this paper, we have measured the SHEL via weak measurement by detecting 2D distribution of lights. As a results, distance of two beams generated by the SHEL was about 80nm.
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Yasuhiro Mizutani, Yasuhiro Mizutani, Kazunori Ueda, Kazunori Ueda, Yasuhiro Takaya, Yasuhiro Takaya, } "Spin Hall effect of light applied in optical linear scale", Proc. SPIE 10023, Optical Metrology and Inspection for Industrial Applications IV, 100230N (24 November 2016); doi: 10.1117/12.2247667; https://doi.org/10.1117/12.2247667
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