Cart (Loading....) | Create Account
Close category search window
 

Design strategies for GaAs-based unipolar lasers: Optimum injector-active region coupling via resonant tunneling

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Barbieri, Stefano ; Thomson-CSF, Laboratoire Central de Recherches, 91404 Orsay, FranceScuola Normale Superiore and INFM, I-56126 Pisa, Italy ; Sirtori, Carlo ; Page, Hideaky ; Stellmacher, Max
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1332105 

Electron injection into the upper state of the laser transition in quantum cascade lasers is studied by investigating the electrical and optical characteristics of a set of electroluminescent devices. These devices exploit the active region of an (Al)GaAs laser based on a diagonal–anticrossed transition scheme with emission wavelength at 9.5 μm, and are identical except for the injection barrier thickness which varies from 3.9 up to 8.0 nm. We find that for thin barriers electron wave functions in the injector are directly coupled with those of the continuum. This leads to a parallel current path which strongly reduces the injection efficiency of electrons into the active region. The current leak is suppressed at low temperatures for samples with the thickest barriers, but it is still observable at high temperatures when electrons are thermally activated from the injector miniband into the continuum. © 2001 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:78 ,  Issue: 3 )

Date of Publication:

Jan 2001

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.