Physicists at Friedrich-Alexander University (Erlangen-Nürnberg) and Friedrich Schiller University in Jena have traced how pulsed laser light behaves as it passes through a focus. The findings will improve the precision of laser-based applications in many fields, including medicine.
D. Hoff, M. Krüger, L. Maisenbacher, A. M. Sayler, G. G. Paulus, P. Hommelhoff
Tracing the phase of focused broadband laser pulses
Nature Physics, 10 July 2017, DOI 10.1038/nphys4185