Spin Hall effect of light applied in optical linear scale
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説明
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.
収録刊行物
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- SPIE Proceedings
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SPIE Proceedings 10023 100230N-, 2016-11-24
SPIE
