Confocal photoluminescence method for measuring the carrier migration in structures with quantum dots

Dan Paul Popescu; Petr Georgievich Eliseev; Kevin J. Malloy

doi:10.1117/12.485707

1 July 2003 Confocal photoluminescence method for measuring the carrier migration in structures with quantum dots

Dan Paul Popescu, Petr Georgievich Eliseev, Kevin J. Malloy

Proceedings Volume 4999, Quantum Sensing: Evolution and Revolution from Past to Future; (2003) https://doi.org/10.1117/12.485707
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

The migration of carriers in optically pumped semiconductor structures with quantum dots is investigated using a confocal setup. Experiments are performed in order to test the performances of the optical setup. The samples studied by optical confocal microscopy are the following: semi-insulating GaAs, InAs quantum dots grown directly in GaAs, InAs quantum dots grown inside a Ga_0.85In_0.15As quantum well and a Ga_0.85In_0.15As quantum well with GaAs barriers. Measurements are done in a range of temperatures starting from 78 K up to 295 K. A theoretical model for the migration length is presented. The solution of a diffusion-type equation is used to fit the experimental data.

Citation Download Citation

Dan Paul Popescu, Petr Georgievich Eliseev, and Kevin J. Malloy "Confocal photoluminescence method for measuring the carrier migration in structures with quantum dots", Proc. SPIE 4999, Quantum Sensing: Evolution and Revolution from Past to Future, (1 July 2003); https://doi.org/10.1117/12.485707

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available