title: Validation experiment of a numerically processed millimeter-wave interferometer in a laboratory.
abstract: We propose a new interferometer system for density profile measurements. This system produces multiple measurement chords by a leaky-wave antenna driven by multiple frequency inputs. The proposed system was validated in laboratory evaluation experiments. We confirmed that the interferometer generates a clear image of a Teflon plate as well as the phase shift corresponding to the plate thickness. In another experiment, we confirmed that quasi-optical mirrors can produce multiple measurement chords; however, the finite spot size of the probe beam degrades the sharpness of the resulting image.
authors.affiliation: Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kogi
authors.affiliation: Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Higashi
authors.affiliation: Department of Information Electronics, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Matsukawa
authors.affiliation: Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga, Fukuoka 816-0811, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Mase
authors.affiliation: Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Kohagura
authors.affiliation: National Institute for Fusion Science, Toki, Gifu 509-5202, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Nagayama
authors.affiliation: National Institute for Fusion Science, Toki, Gifu 509-5202, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kawahata
authors.affiliation: Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
authors.forename: D
authors.initials: D
authors.lastname: Kuwahara
authors.affiliation: Plasma Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Yoshikawa