Abstract
We have demonstrated a compact and portable terahertz (THz) source, based on difference-frequency generation in a GaSe crystal. The two input frequencies, required for achieving frequency mixing, are generated by a single Q-switched Nd:YLF laser incorporating two laser resonators. The average power of the THz output reaches at () within a linewidth of . Such a THz source can be packaged into a compact and portable system.
© 2010 Optical Society of America
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