Byungchil Kim

TL;DR: In this paper, the authors used reflective pulsed terahertz imaging to locate and size the forced delamination in polyetherimide resins in 3D dimensions and determined the thicknesses of the delamination and the layers constituting the laminate.

TL;DR: By computing high-order finite differences of the chaotic laser intensity time series, time series with symmetric statistical distributions are obtained that are more conducive to ultrafast random bit generation.

TL;DR: This Letter is the first to report experimental bifurcation diagrams of an external-c Cavity semiconductor laser (ECSL) in the low-to-moderate current injection regime and long-cavity case and reports for the first time a well resolved experimental Hopf bIfurcation in an ECSL.

TL;DR: The study of the first- and second-order statistics of the optical intensity of a chaotic external-cavity semiconductor DFB laser in fully developed coherence-collapse finds that the experimental probability-density function is significantly more concentrated around the mean optical power and robust to parameter changes than theory predicts.

TL;DR: In this article, the authors report experimental bifurcation diagrams of a semiconductor laser, biased well above threshold, subjected to external optical feedback, and further provide detailed insight on the standard theoretical framework applied to these lasers.