The International Symposium on the Science and Technology of Mesoscopic Structures was held at
Shin-Kohkaido in Nara from November 6-8  1991. The symposium was sponsored by the International
Institute for Advanced Study and partly by Nara Prefecture  Nara City  Nara Convention Bureau 
and the Ministry of Education  Science and Culture of Japan  as well as industrial
organizations. We would like to acknowledge the support of the symposium by these or
ganizations. The scope of the symposium was planned by the organizing committee to cover
outstanding contributors in the fields of (1) ballistic transport  (2) electron wave guides and
interference effects  (3) quantum confinement effects  (4) tunneling phenomena  (5) optical
nonlinearity  and (6) fabrication technology of meso scopic structures. Twenty-six invited
speakers were selected from the United States  Europe  and Japan. In addition twenty-four
contributed papers were accepted for presentation at the poster session. These papers are
included in the proceedings. We are grateful to the organizing committee  Ms. Y oshiko Kusaki
of the Inter national Institute for Advanced Study for the secretarial service  and Dr. Nobuya
Mori  Osaka University  for his scientific cooperation. Thanks are also due to the authors and
the participants for their contributions to a successful symposium.