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Compact and Scalable Large Vortex Array Generation Using Azocarbazole Polymer and Digital Hologram Printing Technique
Boaz Jessie Jackin1, Masaki Shirai2, Honoka Haginaka3
1Materials Innovation Laboratory, Kyoto Institute of Technology, Kyoto, Japan. jackin@kit.ac.jp.
Nanoscale Research Letters
|April 5, 2022
Summary
Researchers developed a simple method to generate 100 multiplexed optical vortex beams using a tiny polymer film. This breakthrough advances information photonics by enabling arbitrary topological charge control for optical vortex beams.
Area of Science:
- Photonics
- Materials Science
- Optics
Background:
- Multiplexed optical vortex beams are essential for advancing information photonics.
- Generating a large number of these beams with controllable properties remains a challenge.
Purpose of the Study:
- To report a simple method for simultaneous generation of 100 multiplexed optical vortex beams.
- To demonstrate the capability of arbitrary topological charge control in these beams.
Main Methods:
- Utilized computer-generated holography and digital hologram printing.
- Employed photoisomeric polymers to fabricate a micro-sized film (1 mm²).
Main Results:
- Successfully generated 100 multiplexed optical vortex beams with arbitrary topological charge.
- Achieved a diffraction efficiency of 30% with the polymer film.
- Demonstrated a long retention period of over 50 days for the generated vortex array.
Conclusions:
- The developed method offers a simple and efficient way to create numerous optical vortex beams.
- The polymer film is easy to synthesize and shows promising stability for applications in information photonics.
