Terahertz-radiation-enhanced broadband terahertz generation from large aperture photoconductive antenna

Yaohui Gao, Chia En Yang, Yunching Chang, Jimmy Yao, Shizhuo Yin, Claire Luo, Paul Ruffin, Christina Brantley, Eugene Edwards

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    A technique of enhancing and broadening terahertz (THz) wave radiation from large aperture photoconductive (PC) antenna is presented in this paper. In this technique, the PC antenna is excited by both the optical and previously generated THz pulses by a laser-induced air plasma created in front of PC antenna and an enhanced and broadened THz wave signal is obtained. The theoretical and experimental investigation shows that the superposition is the main mechanism for this enhancement. The technique shown in this paper can be very useful for THz imaging and spectroscopy.

    Original languageEnglish (US)
    Pages (from-to)133-136
    Number of pages4
    JournalApplied Physics B: Lasers and Optics
    Volume109
    Issue number1
    DOIs
    StatePublished - Oct 1 2012

    Fingerprint

    antennas
    apertures
    broadband
    radiation
    electromagnetic radiation
    augmentation
    air
    pulses
    spectroscopy
    lasers

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)
    • Physics and Astronomy(all)

    Cite this

    Gao, Yaohui ; Yang, Chia En ; Chang, Yunching ; Yao, Jimmy ; Yin, Shizhuo ; Luo, Claire ; Ruffin, Paul ; Brantley, Christina ; Edwards, Eugene. / Terahertz-radiation-enhanced broadband terahertz generation from large aperture photoconductive antenna. In: Applied Physics B: Lasers and Optics. 2012 ; Vol. 109, No. 1. pp. 133-136.
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    abstract = "A technique of enhancing and broadening terahertz (THz) wave radiation from large aperture photoconductive (PC) antenna is presented in this paper. In this technique, the PC antenna is excited by both the optical and previously generated THz pulses by a laser-induced air plasma created in front of PC antenna and an enhanced and broadened THz wave signal is obtained. The theoretical and experimental investigation shows that the superposition is the main mechanism for this enhancement. The technique shown in this paper can be very useful for THz imaging and spectroscopy.",
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    Terahertz-radiation-enhanced broadband terahertz generation from large aperture photoconductive antenna. / Gao, Yaohui; Yang, Chia En; Chang, Yunching; Yao, Jimmy; Yin, Shizhuo; Luo, Claire; Ruffin, Paul; Brantley, Christina; Edwards, Eugene.

    In: Applied Physics B: Lasers and Optics, Vol. 109, No. 1, 01.10.2012, p. 133-136.

    Research output: Contribution to journalArticle

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    T1 - Terahertz-radiation-enhanced broadband terahertz generation from large aperture photoconductive antenna

    AU - Gao, Yaohui

    AU - Yang, Chia En

    AU - Chang, Yunching

    AU - Yao, Jimmy

    AU - Yin, Shizhuo

    AU - Luo, Claire

    AU - Ruffin, Paul

    AU - Brantley, Christina

    AU - Edwards, Eugene

    PY - 2012/10/1

    Y1 - 2012/10/1

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    AB - A technique of enhancing and broadening terahertz (THz) wave radiation from large aperture photoconductive (PC) antenna is presented in this paper. In this technique, the PC antenna is excited by both the optical and previously generated THz pulses by a laser-induced air plasma created in front of PC antenna and an enhanced and broadened THz wave signal is obtained. The theoretical and experimental investigation shows that the superposition is the main mechanism for this enhancement. The technique shown in this paper can be very useful for THz imaging and spectroscopy.

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