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Time-domain terahertz spectroscopy based on asynchronous optical sampling with femtosecond semiconductor disk laser

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6 Author(s)
Gebs, R. ; Dept. of Phys., Univ. of Konstanz, Konstanz, Germany ; Klopp, P. ; Klatt, G. ; Dekorsy, T.
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A terahertz time-domain spectroscopy (THz-TDS) system using an optically pumped semiconductor disk laser and high-speed asynchronous optical sampling is reported. The combination of these techniques holds considerable promise towards a compact and low-cost implementation of THz-TDS. The spectrometer offers a 333 ps time delay window scanned at 10 kHz and delivers more than 1.2 THz spectral coverage at a data acquisition time of one minute. As a proof-of-principle experiment, a 0.8 THz resonance of a frequency-selective surface structure was measured.

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Electronics Letters  (Volume:46 ,  Issue: 1 )