All-semiconductor room-temperature terahertz time domain spectrometer

Zakaria Mihoubi, Keith G. Wilcox, Stephen Elsmere, Adrian Quarterman, Rakchanok Rungsawang, Ian Farrer, Harvey E. Beere, David A. Ritchie, Anne Tropper, Vasileios Apostolopoulos (Lead / Corresponding author)

    Research output: Contribution to journalArticlepeer-review

    39 Citations (Scopus)


    We report what we believe to be the first demonstration of an all-semiconductor room-temperature terahertz time domain spectrometer. An optical Stark mode-locked vertical-external-cavity surface-emitting laser with 480 fs pulses at 1044 nm was used to illuminate low-temperature-grown photoconductive antennae with 5 μm-gap bow-tie-shaped electrodes. The coherently detected spectrum has a bandwidth close to 1 THz, in which water absorption lines at 0.555 and 0.751 THz can be resolved.

    Original languageEnglish
    Pages (from-to)2125-2127
    Number of pages3
    JournalOptics Letters
    Issue number18
    Publication statusPublished - 15 Sept 2008

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


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