Polarimetric Characterization of Quarter-Wave Plate in the Terahertz Range
Year: 2026
Type: conference-paper
Abstract: We report the experimental characterization of a metamaterial-based quarter-wave plate operating in the terahertz (THz) frequency range. The study focuses on quantifying the device's polarization transformation performance through phase-resolved terahertz time-domain spectroscopy. By reconstructing the orthogonal electric-field components, the relative phase delay and resulting Stokes parameters are extracted to evaluate linear-to-circular polarization conversion. The device demonstrates robust quarter-wave plate functionality over a broad bandwidth from 0.58 to 1.55 THz, achieving a high degree of circular polarization across this range. These results confirm effective broadband polarization control, highlighting the device's suitability for applications in terahertz imaging, nondestructive evaluation, and high-speed wireless communication systems.
Source: Photonics North (PN)
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7204190852