Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Physical Sciences and Mathematics
The nonlinear recovery of quantum dot based reverse-biased waveguide absorbers is investigated both experimentally and analytically. We show that the recovery dynamics consists of a fast initial layer followed by a relatively slow decay. The fast recovery stage is completely determined by the intradot properties, while the slow stage depends on the escape from the dot to the wetting layer.
Viktorov, E.A. et al., 2009. Recovery time scales in a reversed-biased quantum dot absorber. Applied Physics Letters, 94(26), p.263502. Available at: http://dx.doi.org/10.1063/1.3159838.