Time-resolved THz spectroscopy in a parallel plate waveguide

David Cooke, Peter Uhd Jepsen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We demonstrate time-resolved terahertz spectroscopy inside a novel parallel plate waveguide where one of the metallic plates is replaced by a transparent conducting oxide. Considerable improvements to the waveguide loss coefficient are shown, with a power absorption coefficient of 4cm-1 at 0.5 THz. The time resolution of the technique is shown to be limited by the spatial excitation profile, which for sharply focused beams can approach ~1 ps time scales.
Original languageEnglish
JournalPhysica Status Solidi. A: Applications and Materials Science (Print)
Volume206
Issue number5
Pages (from-to)997-1000
ISSN1862-6300
DOIs
Publication statusPublished - 2009

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