In reply to Jones Beene's message of Sun, 5 Mar 2017 18:35:50 -0800: Hi, [snip] >Hi Robin, > >The Wiki site has some information > >https://en.wikipedia.org/wiki/Femtosecond_pulse_shaping > >Pulse shaping and chirping seem like two ways to increase the >effectiveness of a laser for certain uses, but apparently Holmlid does >neither and gets good results. [snip] As I said in a previous post, the need for chirping depends on the density of the target. If Holmlid already starts off with a very dense target, then he may not need chirping to get good particle acceleration. And let's face it, that more or less conventional explanation is the simplest that explains the results. Regards,
Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
