Millimeter-Wave Ellipsometry Using Low-Coherence Light Source

Hiroshi YAMAMOTO  Hiroshi ITO  

IEICE TRANSACTIONS on Electronics   Vol.E97-C   No.5   pp.460-462
Publication Date: 2014/05/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E97.C.460
Type of Manuscript: BRIEF PAPER
Category: Microwaves, Millimeter-Waves
ellipsometry,  millimeter wave,  UTC-PD,  low-coherent light source,  

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Two types of low-coherence millimeter-wave sources for photonic millimeter-wave ellipsometry are compared. A broadband signal (125-GHz bandwidth) or a narrowband one (0.5-GHz bandwidth) is used to measure the complex relative dielectric constants of purified water, and the narrowband signal is revealed to be suitable for accurate measurement.