Browsing OSU - Faculty and Staff Publications by Author "Zhang, Jiangquan"
Now showing items 1-4 of 4
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Adiabatic compression of parallel-plate metal waveguides for sensitivity enhancement of waveguide THz time-domain spectroscopy
Zhang, Jiangquan; Grischkowsky, D. (AIP Publishing, 2005-02-02)We demonstrate the efficient coupling of THz pulses into and out of an adiabatically compressed parallel-plate metal waveguide. The plate separation of the 63.5-mm long, compressed waveguide was fixed at 103 um at the ... -
Measurements of the THz absorption and dispersion of ZnTe and their relevance to the electro-optic detection of THz radiation
Gallot, G.; Zhang, Jiangquan; McGowan, R. W.; Jeon, Tae-In; Grischkowsky, D. (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 ... -
Quasioptic dielectric tetrahertz cavity: Coupled through optical tunneling
Zhang, Weili; Zhang, Jiangquan; Grischkowsky, D. (AIP Publishing, 2001-04-23)We report the observation of the well defined oscillation of a picosecond tetrahertz (ps THz) pulse within a dielectric concentric cy1indrica1 cavity, which is coupled to an incoming focused beam of ps THz pulses by the ... -
THz Sommerfeld wave propagation on a single metal wire
Jeon, Tae-In; Zhang, Jiangquan; Grischkowsky, D. (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 ...