Terahertz generation in multiple laser-induced air plasmas

Meng Ku Chen, Jae Hun Kim, Chia En Yang, Stuart Shizhuo Yin, Rongqing Hui, Paul Ruffin

    Research output: Contribution to journalArticlepeer-review

    26 Scopus citations


    An investigation of the terahertz wave generation in multiple laser-induced air plasmas is presented. First, it is demonstrated that the intensity of the terahertz wave increases as the number of air plasmas increases. Second, the physical mechanism of this enhancement effect of the terahertz generation is studied by quantitatively measuring the intensity of the generated terahertz wave as a function of phase difference between adjacent air plasmas. It is found out that the superposition is the main mechanism to cause this enhancement. Thus, the results obtained in this paper not only provide a technique to generate stronger terahertz wave but also enable a better understanding of the mechanism of the terahertz generation in air plasma.

    Original languageEnglish (US)
    Article number231102
    JournalApplied Physics Letters
    Issue number23
    StatePublished - 2008

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy (miscellaneous)


    Dive into the research topics of 'Terahertz generation in multiple laser-induced air plasmas'. Together they form a unique fingerprint.

    Cite this