High Performance Graded Quantum Structures: Growth, Applications, Phenomena

Abstract

High-performance, highly-resonant graded quantum well structures were developed under this grant and were successfully applied to direct, electrically-pumped generation of Terahertz-frequency radiation. Additionally, coupled quantum well structures were developed for producing quantum interference of intersubband transitions as a possible step toward lasing without inversion. Special highlights of the research were 1) the generation of continuous, electrically excited Terahertz radiation emission as well as pulsed, optically excited Terahertz radiation emission from highly resonant parabolic quantum wells and 2) the first achievement of increased transparency in intraband quantum well infrared optical absorption as a result of quantum interference among intraband quantum well optical transitions.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1998
Accession Number
ADA349661

Entities

People

  • Arthur C. Gossard

Organizations

  • University of California, Santa Barbara

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Crystal Lattice Vibrations
  • Electronics Laboratories
  • Far Infrared Radiation
  • Magnetic Fields
  • Materials
  • Materials Science
  • Measurement
  • Modules (Electronics)
  • Oscillators
  • Power Electronics
  • Quantum Wells
  • Scattering
  • Semiconductor Devices
  • Semiconductors
  • Solid State Physics
  • Subatomic Particles
  • Terahertz Radiation

Fields of Study

  • Materials science

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing