Research Subjects

　The advent of semiconductor nanostructures has led to the development of novel devices and given rise to many advances in theoretical understanding of those low-dimensional electron systems. In Yamaguchi laboratory, fabrication and characterization technologies of semiconductor nanostructures have been investigated for the development of new optoelectronic and spin-controlled devices. In particular, we have many interests in semiconductor quantum dots (QDs), which confine electrons and holes three dimensionally. The QDs have been expected for many attractive device applications: QD lasers, single photon sources, single photon detectors, quantum computing, single electron transister and memory, spin-controlled devices and so on. In order to realize such QD devices, we have to develop fabrication technologies for precise control of QD structures. In addition, unique physical properties of the QD also must be studied. The following items are some of our research titles.