Physics
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005njph....7..216n&link_type=abstract
New Journal of Physics, Volume 7, Issue 1, pp. 216 (2005).
Physics
36
Scientific paper
Broadening the ultrashort laser pulse in a Kerr-lens mode-locked laser by net positive round-trip group-delay dispersion has proven to be a powerful concept for scaling the pulse energy directly achievable with a femtosecond laser oscillator without external amplification. Drawing on this concept, we demonstrate here Ti : Sa chirped-pulse oscillators delivering sub-40 fs pulses of 0.5 μJ and 50 nJ energy at average power levels of 1 and 2.5 W (repetition rate: 2 and 50 MHz), respectively, which to the best of our knowledge constitute the highest pulse energy and average power achieved with a femtosecond (<100 fs) laser oscillator to date. The 0.5 μJ pulses have a peak power in excess of 10 MW and reach a peak intensity >1015 W cm-2 (when focused down to ~1 μm2), both of which represent record values from a laser oscillator. These pulse parameters appear to be limited merely by the pump power available, affording promise of scaling chirped-pulse femtosecond Ti : Sa oscillators to microjoule pulse energies and—by simultaneous spectral broadening—towards peak power levels of several hundred megawatts.
Apolonski Alexander A.
Dombi Peter
Fernandez Alberto
Graf Rudolf
Krausz Ferenc
No associations
LandOfFree
Approaching the microjoule frontier with femtosecond laser oscillators does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Approaching the microjoule frontier with femtosecond laser oscillators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Approaching the microjoule frontier with femtosecond laser oscillators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1382670