Abstract
Terahertz time-domain spectroscopy (THz-TDS) conventionally employs a mechanical delay stage, which causes long data acquisition times. Another method avoiding the mechanical delay is the ASOPS technique (e.g. Ref. 1), which is based on an asynchronous optical sampling of two independent laser sources. However, the drawback of this method besides the high costs of two femtosecond lasers is the stabilization of the two lasers.
© 2013 Japan Society of Applied Physics, Optical Society of America
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