A Stereolithographically Fabricated Polymethacrylate Broadband THz Absorber

TL;DR

This paper presents a novel broadband THz absorber fabricated using stereolithography, demonstrating effective absorption in the THz range through experimental transmission tests.

Contribution

It introduces a stereolithographic fabrication process for a broadband THz absorber, filling a gap in additive manufacturing applications for THz optics.

Findings

Effective THz absorption demonstrated in experiments

High spatial resolution and surface quality achieved

Potential for scalable THz optical components

Abstract

Additive manufactured THz optics have been introduced as an efficient alternative to their commercial counterparts. Among various additive manufacturing methods, stereolithography provides superior spatial resolution and surface finish. However, examples of stereolithographically fabricated components for THz applications are still scarce. In this paper, we report on the fabrication process and performance of a stereolithographically fabricated broadband absorber for the THz spectral range. Simple THz transmission experiments were carried out for the absorber and bulk reference samples. The experimental results indicated that the fabricated absorber effectively absorbs incident signal in the investigated THz spectral range.