Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7927987 | Optics Communications | 2016 | 5 Pages |
Abstract
We show how the velocity of an optical pulse propagating through a dispersive medium depends on the pulse duration. A transition from the group velocity for long pulses to the in-vacuum velocity for short pulses is shown both in experimental results and in theoretical predictions. The temporal duration of the experimental pulses are 150Â ps and 3.5Â ns. A description of the pulse propagation in terms of the time “center of mass” of the energy flow allows an intuitive overview of the results.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Emilio Ignesti, Federico Tommasi, Lorenzo Fini, Stefano Cavalieri,