Propagation of Terahertz Pulses on Coplanar Strip-lines on Low Permittivity Substrates and a Spectroscopy Application
2008; Institute of Physics; Volume: 1; Issue: 1 Linguagem: Inglês
10.1143/apex.1.012009
ISSN1882-0786
AutoresS. Yanagi, M. Onuma, Jiro Kitagawa, Yutaka Kadoya,
Tópico(s)Microwave Engineering and Waveguides
ResumoThe authors have investigated the propagation characteristics of the terahertz electrical pulses on the coplanar strip-lines (CPSs) made on low permittivity substrates. By the use of a commercially available plastic whose permittivity is about 2.3 in 1–3 THz, the radiation loss could be made low, and the total attenuation of about 0.2 neper/mm was achieved at 1 THz. As a result, the spectra reaching 3 THz with a dynamic range of about 60 dB were realized even after the 1 mm propagation. Using the CPS device, a spectroscopy of biotin powder is demonstrated over a frequency range up to 2 THz.
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