The First mm-wave Interferometer in the World
The world first mm-wave interferometer for astronomy was proposed and
designed in 1960's at the Department of Physics, Nagoya University, by
K. Kawabata and Y. Sofue, later joined by H. Ogawa.
Based on mm-wave experiments at 70 and 35 GHz with single dish telescopes, the:
Construction of 8-element 35 GHz interferometer with maximum baseline of 16 m
for solar observations was accomplished in 1970-1971 resulting in several papers
on radio bursts and the chronosphere physics of the quiete Sun as below.
The interferometer was further developed to have 16 elements (32 m), and
was operated till 1980's.
1972 Kawabata and Sofue PASJ: 35GHz Interferometer
1973 Kawabata, Sofue, et al. Sol.Phys: 35GHz Interferometer
1974 Kawabata et al PASJ: 35GHz Interferometer