Subplcosecond Photocarrier Lifetimes in GaSb/ErSb Nanoparticle Superlattices at 1.55 μm

Authors

M. P. Hanson, University of California
D. C. Driscoll, University of California
J. D. Zimmerman, University of California
A. C. Gossard, University of California
Elliott R. Brown, Wright State University - Main CampusFollow

Document Type

Article

Publication Date

10-11-2004

Identifier/URL

43034610 (Pure)

Abstract

We demonstrate subpicosecond photocarrier lifetimes at 1.55 μm in GaSb/ErSb nanoparticle superlattices grown by molecular beam epitaxy. Pump-probe measurements were made with a 1.55 μm mode-locked laser in transmission geometry to determine the photocarrier lifetime. The lifetime is found to be dependent on the size of the ErSb particles, amount of ErSb, and the distance between layers of particles. Through manipulation of these three parameters the photocarrier lifetime can be tuned down to less than 300 fs, the temporal limit of our experiment.

Repository Citation

Hanson, M. P., Driscoll, D. C., Zimmerman, J. D., Gossard, A. C., & Brown, E. R. (2004). Subplcosecond Photocarrier Lifetimes in GaSb/ErSb Nanoparticle Superlattices at 1.55 μm. Applied Physics Letters, 85 (15), 3110-3112.
https://corescholar.libraries.wright.edu/physics/1334

DOI

10.1063/1.1805711