Two-Photon Absorption Characterization of HgCdTe

Abstract

Magneto-Optical measurements of Hg(1-x)Cd(X)Te alloys have provided a new means of studying impurities and defects in this important II-VI material. Two-photon magnetoabsorption (TMPA) has been used to accurately determine the temperature dependence of the energy gap of various HgCdTe alloys, revealing behavior that deviates from currently accepted models. In addition, magneto- optical techniques have been used to detect the presence of both shallow and deep impurities/defects and accurately determine their activation energies, thus providing information necessary for understanding the electrical and optical properties of the material. Keywords: Defect characterization; Magneto optical measurements; Two photon spectroscopy; Narrow band gap semiconductors.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1989
Accession Number
ADA207198

Entities

People

  • David G. Seiler

Organizations

  • University of North Texas

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Band Gaps
  • Band Structures
  • Charge Carriers
  • Crystal Lattice Vibrations
  • Electro-Optics
  • Energy Bands
  • Energy Gaps
  • Energy Levels
  • Infrared Lasers
  • Low Temperature
  • Magnetic Fields
  • Narrow Band Gap Semiconductors
  • Semiconductors
  • Solid State Physics
  • Spectroscopy
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Superconducting Magnet Technology

Technology Areas

  • Microelectronics