Ultrafast optical properties of doped InAs/GaAs self-assembled quantum dots

Daria Riabinina

doi:10.1117/12.2283838

29 August 2017 Ultrafast optical properties of doped InAs/GaAs self-assembled quantum dots

Daria Riabinina

Proceedings Volume 10313, Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging; 1031316 (2017) https://doi.org/10.1117/12.2283838
Event: Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, 2002, Ottawa, Ontario, Canada

Abstract

We have studied the dynamics of photocarriers in doped InAs/GaAs self-assembled quantum dots using time- resolved photoluminescence measurements. The influence of the excitation conditions (excitation power, wavelength) and the effect of the doping level have been investigated. The rise time of the quantum dot emission signal is correlated with the number of carriers inside the dots whether they are introduced by doping or by photoexcitation. In both cases, the photoluminescence rise time diminishes with the number of carriers. A four-level model taking into account different interlevel relaxation and capture mechanisms has been used for the simulations of the photoluminescence transients. Discussion on the physical hypothesis behind this model is given.

Citation Download Citation

Daria Riabinina "Ultrafast optical properties of doped InAs/GaAs self-assembled quantum dots", Proc. SPIE 10313, Opto-Canada: SPIE Regional Meeting on Optoelectronics, Photonics, and Imaging, 1031316 (29 August 2017); https://doi.org/10.1117/12.2283838

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