Related Experiment Video
Updated: Jun 29, 2025
12:08
Fabrication of High Contrast Gratings for the Spectrum Splitting Dispersive Element in a Concentrated Photovoltaic System
Published on: July 18, 2015
10.7K
Concave Version Printing of High-Performance Polymer THz Filters
Jiang Wei1,2, Yan Miao1,2, Wenqian Zhang1,2
1National Key Laboratory of Advanced Micro and Nano Manufacture Technology, Shanghai Jiao Tong University, Shanghai 200240, China.
ACS Omega
|April 8, 2024
Summary
Researchers developed a simple technique to mass-produce high-performance microstructured polymer filters for terahertz (THz) applications. These filters offer high Q-factors and wide tunability, overcoming limitations of traditional metal and dielectric filters.
Area of Science:
- Optics and Photonics
- Materials Science
- Nanotechnology
Background:
- High Q-factor and tunable narrowband filters are crucial for terahertz (THz) applications like imaging and sensing.
- Existing metal and dielectric filters suffer from high losses, limited tunability, and complex fabrication processes.
Purpose of the Study:
- To present a scalable and simple technique for mass-producing high-performance microstructured polymer filters.
- To overcome the limitations of conventional filter fabrication methods.
Main Methods:
- A scalable concave version reprinting technique was employed for filter fabrication.
- The method avoids the need for large equipment such as injection molding or thermal press printing machines.
- Ensured defect-free structures (no gaps or air bubbles) in the reprinted filters.
Main Results:
- Achieved high-performance microstructured polymer filters with a high Q-factor of 57.
- Demonstrated wide tunability of the filters across the THz band (approx. 80-160 μm wavelength).
- The reprinting technique proved to be simple, reliable, and capable of defect-free mass production.
Conclusions:
- The presented concave version reprinting technique offers a simple, precise, and scalable method for fabricating high-performance polymer-based optical devices.
- This technique addresses the limitations of existing THz filters and can be extended to other polymer-based devices.
- Enables efficient manipulation of THz beams for advanced applications.
