Exciton Transport Phenomena in GaAs Coupled Quantum Wells

This thesis presents results crucial to the emerging field of indirect excitons. These specially designed quasiparticles give the unique opportunity to study fundamental properties of quantum degenerate Bose gases in semiconductors. Furthermore, indirect excitons allow for the creation of novel optoelectronic devices where excitons are used in place of electrons. Excitonic devices are explored for the development of advanced signal processing seamlessly coupled with optical communication.
The thesis presents and describes the author's imaging experiments that led to the discovery of spin transport of excitons. The many firsts presented herein include the first studies of an excitonic conveyer, leading to the discovery of the dynamical localization-delocalization transition for excitons, and the first excitonic ramp and excitonic diode with no energy-dissipating voltage gradient.

List of contents

Chap1: Introduction.- Chap2: Controlled exciton transport via a ramp.- Chap3: Controlled exciton transport via an optically controlled exciton transistor.- Chap4: Controlled exciton transport via a Conveyer.- Chap5: Observation of exciton spin transport.

About the author

Jason Leonard received his Ph.D. from the the University of California, San Diego, in 2016.

Summary

Nominated as an outstanding Ph.D. thesis by the University of California, San Diego
Presents groundbreaking new discoveries in the emerging field of indirect excitons
Describes the first observations of spin transport of excitons and and spin currents in exciton condensates
Presents phenomena that are applicable to Bose gases in semiconductors and excitonic devices

Product details

• Authors: Jason Leonard
• Publisher: Springer, Berlin
• Languages: English
• Product format: Paperback / Softback
• Released: 01.01.2019
• EAN: 9783319888347
• ISBN: 978-3-31-988834-7
• No. of pages: 59
• Dimensions: 155 mm x 233 mm x 5 mm
• Weight: 136 g
• Illustrations: XI, 59 p. 10 illus., 5 illus. in color.
• Series: Springer Theses; Springer Theses
• Subjects: Natural sciences, medicine, IT, technology > Physics, astronomy > Atomic physics, nuclear physics; Laser, B, Laserphysik, Lasers, Quantum Physics, Quantum physics (quantum mechanics & quantum field theory), Physics and Astronomy, Optical physics, Semiconductors, Photonics, Applied optics, Optics, Lasers, Photonics, Optical Devices, Atomic & molecular physics, Low Temperature Physics, Low temperatures, Condensed materials, Phase transformations (Statistical physics), Quantum Gases and Condensates