Published September 28, 2015 | Version v1
Journal article Metadata-only

Quantum cascade emission in the III-nitride material system designed with effective interface grading

Creators

  • 1. Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08540 (United States)
  • 2. Corning Incorporated, Corning, New York 14831 (United States)
  • 3. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

Description

We report the realization of quantum cascade (QC) light emission in the III-nitride material system, designed with effective interface grading (EIG). EIG induces a continuous transition between wells and barriers in the quantum confinement, which alters the eigenstate system and even delocalizes the states with higher energy. Fully transverse-magnetic spontaneous emission is observed from the fabricated III-nitride QC structure, with a center wavelength of ∼4.9 μm and a full width at half maximum of ∼110 meV, both in excellent agreement with theoretical predictions. A multi-peak photo-response spectrum is also measured from the QC structure, which again agrees well with theoretical calculations and verifies the effects of EIG

Additional details

Identifiers

DOI
10.1063/1.4932068;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
107
Journal Issue
13
Journal Page Range
p. 132104-132104.4
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47052149
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CONFINEMENT; DESIGN; DIFFUSION BARRIERS; EMISSION; INTERFACES; MILLI EV RANGE; SPECTRA; VENTILATION BARRIERS; VISIBLE RADIATION; WAVELENGTHS; WIDTH
Descriptors DEC
DIMENSIONS; ELECTROMAGNETIC RADIATION; ENERGY RANGE; ENGINEERED SAFETY SYSTEMS; RADIATIONS

Optional Information

Notes
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