Exploring the Impact of Absorber Material on the Performance of a Terahertz Microbolometer by Finite Element Analysis

• DOI: 10.1109/nmdc57951.2023.10343843
• Publication Date: 2023-12-12T18:39:54Z
• Authors: Monica La Mura; Patrizia Lamberti; Vincenzo Tucci; Justinas Jorudas; Maria Cojocari; Georgy Fedorov; Polina Kuzhir
• Keywords: Microbolometer; Pyrolytic carbon; Transient (computer programming)

Microbolometers, functioning as sensitive detectors, play a crucial role in terahertz imaging systems by converting radiation into measurable electrical signals. The performance of microbolometers heavily relies on the properties absorber material employed. In this study, we numerically investigate impact two distinct materials, namely gold and pyrolytic carbon (PyC), microbolometers. Finite element simulations are conducted to analyze effect thermal transient time constant, that is limiting factor for bolometer response time, mechanical resonance frequency shift, related sensitivity results will help improving detectors systems, which represent powerful tools non-invasive inspection characterization various fields.