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Published on: April 11, 2025
Numerical study on a micro prism and micro lenses with metal-dielectric multilayered structures
Shinji Kameda1, Akio Mizutani, Hisao Kikuta
1School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka, Japan. ds101001@edu.osakafu-u.ac.jp
Summary
This study introduces a micro optical prism and lenses using a metal-and-dielectric multilayered subwavelength structure (MDMS). The novel MDMS prism exhibits high angular dispersion, enabling compact optical devices.
Area of Science:
- Optics and Photonics
- Nanotechnology
- Materials Science
Background:
- Micro optical components are crucial for miniaturized photonic systems.
- Metal-and-dielectric multilayered subwavelength structures (MDMS) offer unique optical properties.
- Controlling light propagation at the microscale is challenging.
Purpose of the Study:
- To investigate the optical properties of micro optical prisms and lenses based on MDMS.
- To analyze the angular dispersion of a curved MDMS prism.
- To explore the integration of MDMS prisms with MDMS lenses for optical systems.
Main Methods:
- Theoretical analysis of optical properties.
- Numerical simulations of light propagation and dispersion.
- Fabrication and characterization of MDMS structures (implied).
Main Results:
- The MDMS prism demonstrates highly dispersive optical properties.
- A curved MDMS prism with a 0.4 µm period and 90° apex angle achieved 0.11°/nm angular dispersion at 1.5 µm wavelength.
- Optical behavior of MDMS lenses (convexo-plane and gradient-index) was investigated, and their integration with the prism was simulated.
Conclusions:
- MDMS is a promising material for creating highly dispersive micro optical prisms.
- The demonstrated micro optical components can enable compact and efficient photonic devices.
- Further research into MDMS-based optical systems holds potential for advanced applications.
