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Ultrafast optical properties of lithographically defined quantum dot amplifiers

Published

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

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 May 22, 2024)

Issues

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Created February 10, 2014, Updated November 10, 2018