Light induced conch-shaped relief in an azo-polymer film
نویسندگان
چکیده
We have discovered that a novel chiral structured surface relief (termed 'conch'-shaped surface relief) with a height of over 1 μm can be formed in an azo-polymer film merely by employing circularly polarized optical vortex irradiation with a total angular momentum of j = ±2. The temporal evolution of the conch-shaped surface relief in the azo-polymer film was also observed. The results provide physical insight into how the angular momentum of light is transferred to a material through mass transport by cis-trans photo-isomerization. Such conch-shaped surface reliefs with chirality, in which functional chemical composites can be doped, enable new applications, such as planar chiral metamaterials, plasmonic holograms, and identification of chiral chemical composites.
منابع مشابه
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