Robin Among the interesting things that turn up on google in this regard is https://www.osti.gov/pages/biblio/1429741 GV Lopez 2017 — A resonant multiphoton ionization process in molecular hydrogen ... caused by intense laser fields from the non-resonant 532 nm laser. "Non resonance causing resonance" - now that's intriguing (I have not read it yet) More later
Robin wrote: In reply to Jones Beene's message of Sun, 18 Apr 2021 Hi Jones, As you guessed, that's why I asked how sharp the peak was. ;) [snip] Regards, Robin van Spaandonk