Picosecond optical vortex-induced chiral surface relief in an azo-polymer film
نویسندگان
چکیده
منابع مشابه
Light induced conch-shaped relief in an azo-polymer film
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...
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A Scanning Near-field Optical Microscope (SNOM) was used to inscribe locally limited Surface Relief Gratings (SRGs) on pDR1M, which is an azo-polymer film. The influence of parameters such as the line scanning time and the line spacing on the amplitude and the period of the gratings is discussed. SRGs have been used to orient Liquid Crystals (LCs), where the LC alignment takes place due to the ...
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When an azobenzene-containing polymer film is exposed to non-uniform illumination, a light-induced mass migration process may be induced, leading to the formation of relief patterns on the polymer-free surface. Despite many years of research effort, several aspects of this phenomenon remain poorly understood. Here we report the appearance of spiral-shaped relief patterns on the polymer film und...
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ژورنال
عنوان ژورنال: Journal of Nanophotonics
سال: 2020
ISSN: 1934-2608
DOI: 10.1117/1.jnp.14.016012