Effective traveling-wave excitation below the speed of light

Authors
Tommasini, R Fill, EE
Citation
R. Tommasini et Ee. Fill, Effective traveling-wave excitation below the speed of light, OPTICS LETT, 26(10), 2001, pp. 689-691
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
26
Issue
10
Year of publication
2001
Pages
689 - 691
Database
ISI
SICI code
0146-9592(20010515)26:10<689:ETEBTS>2.0.ZU;2-Y
Abstract
We demonstrate that effective traveling-wave excitation of high-gain amplif iers requires velocities that are remarkably slower than the velocity of li ght. Experiments with a femtosecond-laser-pumped molecular hydrogen laser e xhibit pronounced enhancement of the intensity if an excitation velocity th at is slower than the velocity of light is employed. These results are dire ctly scalable to shorter wavelengths, paving the way for a more effective p ump setup for x-ray lasers. (C) 2001 Optical Society of America.