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Direct optoelectronic generation and detection of sub-ps-electrical pulses on sub-mm-coaxial transmission lines
(AIP Publishing, 2004-12-20)
We report efficient direct optoelectronic generation of sub-ps-THz pulses on 50 Ohm coaxial transmission lines with a 330 micro-m diameter solid copper outer tube filled with Teflon containing the 80 micro-m diameter inner ...
Electrical characterization of conducting polypyrrole by THz time-domain spectroscopy
(AIP Publishing, 2000-10-16)
Using an optoelectronic THz beam system for THz time-domain spectroscopy (THz TDS), we have measured the absorption and index of refraction of a conducting polypyrrole film from low frequencies to 2.5 THz. From these ...
THz Zenneck surface wave (THz surface plasmon) propagation on a metal sheet
(AIP Publishing, 2006-02-08)
We present an experimental study of the propagation of the THz Zenneck surface wave on an aluminum sheet, now more commonly denoted as the THz surface plasmon (TSP). Here, the TSP pulse is generated by coupling the THz ...
Measurements of the THz absorption and dispersion of ZnTe and their relevance to the electro-optic detection of THz radiation
(AIP Publishing, 1999-06-07)
Via THz time-domain spectroscopy, we have measured the absorption and index of refraction of single-crystal (110) ZnTe from 0.3 to 4.5 THz. We find that the absorption is dominated by two lower-frequency phonon lines at ...
Electrical and optical characterization of conducting poly-3-methylthiophene film by THz time-domain spectroscopy
(AIP Publishing, 2002-12-17)
Using THz time-domain spectroscopy (THz-TDS), we have measured the absorption and dispersion of 7.5/(Ohm-cm) conducting poly-3-methylthiophene film from low frequencies up to 4 THz. From these measurements the complex ...
Nature of conduction in doped silicon
(American Physical Society, 1997-02-10)
Via ultrafast optoelectronic THz techniques, we are able to test alternative theories of conduction by precisely measuring the complex conductivity of doped silicon from low frequencies to frequencies higher than the plasma ...
Observation of a Cole-Davidson type complex conductivity in the limit of very low carrier densities in doped silicon
(AIP Publishing, 1998-05-04)
Using THz time-domain spectroscopy to measure the complex conductivity of doped silicon from low frequencies to frequencies higher than the THz plasma frequency and the carrier damping rate, we were able to show in the ...
THz Sommerfeld wave propagation on a single metal wire
(AIP Publishing, 2005-04-12)
We report an experimental and theoretical study of THz Sommerfeld wave propagation on a single copper wire. THz pulses are optoelectronically generated and launched onto 0.52-mm-diam copper wire, and the guided THz pulses ...