Spatially Coherent, Phase Matched, High-Order Harmonic Beams at 50 kHz

• DOI: 10.1364/cleo.2009.jthh2
• Publication Date: 2013-04-12T21:40:59Z
• Authors: M.-C. Chen; M. R. Gerrity; T. Popmintchev; S. Backus; X. Zhang; M. M. Murnane; H. C. Kapteyn
• Keywords: Harmonic; Repetition (rhetorical device); Harmonic Analysis

By tightly focusing a high repetition rate (50kHz), compact, femtosecond laser system with low pulse energy (25μJ), we demonstrate fully phase matched, spatially coherent, 50kHz harmonic beams for the first time.