Ultrafast optical properties of lithographically defined quantum dot amplifiers

Published

February 10, 2014

Author(s)

Luis Miaja Avila, Varun B. Verma, James J. Coleman, Richard P. Mirin, Kevin L. Silverman

Abstract

We measure the ultrafast optical response of lithographically defined quantum dot amplifiers at 40 K. Recovery of the gain mostly occurs in less than 1 picosecond, with some longer-term transients attributable to carrier heating. Recovery of the absorption proceeds on a much longer timescale, representative of relaxation between quantum dot levels and carrier recombination. We also measure transparency current-density in these devices.

Citation

Applied Physics Letters

Volume

104

Issue

6

Pub Type

Journals

Download Paper

https://doi.org/10.1063/1.4865238

Keywords

lasers, quantum dots

Citation

Miaja, L. , Verma, V. , Coleman, J. , Mirin, R. and Silverman, K. (2014), Ultrafast optical properties of lithographically defined quantum dot amplifiers, Applied Physics Letters, [online], https://doi.org/10.1063/1.4865238 (Accessed April 25, 2024)