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The broadband millimeter-wave dielectric properties of chlorobenzene, cyclohexane, 10% formalin, and 1,4-dioxane are presented for the first time in this paper. A variable-temperature variable-thickness interferometer was assembled to perform dispersive Fourier transform spectroscopy on liquids at millimeter and submillimeter waves. Using the two-thickness method, the refractive index, absorption coefficient, real and imaginary permittivities, and loss tangent were obtained as a continuous function of frequency from 60 to 600 GHz (2-20, 5-0.5 mm). Resonance patterns for cyclohexane, 10% formalin, and 1,4-dioxane were detected. Knowledge of these properties can facilitate future research in examining biological tissues and mixtures.
Instrumentation and Measurement, IEEE Transactions on (Volume:56 , Issue: 6 )
Date of Publication: Dec. 2007