Title :
Millimeter and Submillimeter Wave Dielectric Measurements of Household Powders Using Fourier Transform Spectroscopy
Author :
Khan, Usman ; Afsar, M.N. ; Nguyen, Nicholas
Author_Institution :
Millimeter & Submillimeter Waves Lab., Tufts Univ., Medford, MA
Abstract :
High resolution millimeter and submillimeter wave measurements of solids and powders are very difficult to acquire and have taken on a growing significance for security reasons. Utilizing a two-beam polarizing interferometer, the dielectric properties of household powders were obtained through Dispersive Fourier Transform Spectroscopy. The refractive index, absorption coefficient, real and imaginary permittivity, and loss tangent for talc, confectioner sugar, flour, baking soda, and dry milk from 400 GHz to 1.2 THz are presented in this paper
Keywords :
Fourier transform spectroscopy; absorption coefficients; dielectric losses; dielectric measurement; interferometers; millimetre wave measurement; permittivity; powders; refractive index; submillimetre wave measurement; 400 to 1200 GHz; absorption coefficient; dielectric properties; dispersive Fourier transform spectroscopy; household powders; millimeter wave dielectric measurements; permittivity; refractive index; submillimeter wave dielectric measurements; two-beam polarizing interferometer; Dielectric measurements; Dispersion; Electrochemical impedance spectroscopy; Fourier transforms; Polarization; Powders; Refractive index; Security; Solids; Submillimeter wave measurements; Broadband Dielectric Measurements; Dispersive Fourier Transform Spectroscopy; baking soda; dry milk; flour; sugar; talc;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE
Conference_Location :
Sorrento
Print_ISBN :
0-7803-9359-7
Electronic_ISBN :
1091-5281
DOI :
10.1109/IMTC.2006.328540
