Infrared Light Emitting Device with Two Color Emission

Abstract

We have designed and fabricated two-color infrared light emitting diode (LED) emitting in the wavelength regions of 3-4 lm and 5-10 lm. The interband cascade (IC) LED device was grown on n-type GaSb substrate and has 30 cascaded stages for the long-wave infrared (LWIR) and 15 cascaded stages for the mid-wave infrared (MWIR) emission bands. The two active regions are separated by a 0.5 lm thick contact layer, which is used for biasing the two LEDs. Both room temperature and cryogenic temperature results show emission in the wavelength regions as designed.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2010
Accession Number
ADA524075

Entities

People

  • Naresh C. Das

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Band Structures
  • Cascade Structures
  • Chemical Detectors
  • Detectors
  • Electronic Equipment
  • Electronics
  • Emission
  • Emission Spectra
  • Energy Bands
  • Fabrication
  • Infrared Detectors
  • Infrared Spectra
  • Light Sources
  • Low Temperature
  • Metal Contacts
  • Solid State Electronics
  • Spectra

Fields of Study

  • Materials science

Readers

  • Electrical Engineering
  • Image Processing and Computer Vision.
  • Materials Science and Engineering.