This book covers the spectrum of contemporary knowledge in mesoscopic physics and electronic nanodevices, serving as a valuable reference for researchers. In nanoscopic or mesoscopic systems, quantum effects such as the quantum hall effect, new electronic transport phenomena, and other aspects of electron-photon interactions become important. The physics of mesoscopic systems, and the relevant effects and characterization of quantum structures are discussed in this comprehensive presentation of the basis and realization of a new and promising concept for future electronic devices.