High Electric Field Quantum Transport: Submillimeter Wave AC Stark Localization in Vertical and Lateral Superlattices.
Abstract
Nonlinear electron dynamics in semiconductor quantum structures define a rich scientific arena with potential impact on novel devices in the terahertz regime. An important concept is photon assisted transport marked by new transport channels, opened by the absorption or emission of one or more photons. Experiments carried out during this project have exposed several phenomena, new to semiconductor quantum devices, antenna coupled to intense terahertz: electric fields: (1) Multiple photon assisted tunneling, accompanied by both stimulated emission and absorption of up to three terahertz photons. (2) Electric field domains supported by multiphoton assisted sequential resonant tunneling. (3) Terahertz driven dynamic localization and absolute negative resistance. (4) A classical I quantum crossover frequency. (5) Multiphoton resonances with Bloch oscillation in electrically biased miniband superlattices. These experiments have opened the arena of photon assisted transport to semiconductor devices and paved the way for future teraherz: electronics based on quantum transport in semiconductor nanostructures.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 31, 1996
- Accession Number
- ADA313811
Entities
People
- S. J. Allen
Organizations
- University of California, Santa Barbara