Kling, Nora G.Betsch, K. J.Zohrabi, M.Zeng, S.Anis, F.Ablikim, U.Jochim, BethanyWang, Z.Kübel, M.Kling, M. F.Carnes, K. D.Esry, B. D.Ben-Itzhak, I.2023-12-072023-12-072013-10-18https://hdl.handle.net/2097/43907The dissociation of an H+2 molecular-ion beam by linearly polarized, carrier-envelope-phase-tagged 5 fs pulses at 4×1014 W/cm2 with a central wavelength of 730 nm was studied using a coincidence 3D momentum imaging technique. Carrier-envelope-phase-dependent asymmetries in the emission direction of H+ fragments relative to the laser polarization were observed. These asymmetries are caused by interference of odd and even photon number pathways, where net zero-photon and one-photon interference predominantly contributes at H++H kinetic energy releases of 0.2–0.45 eV, and net two-photon and one-photon interference contributes at 1.65–1.9 eV. These measurements of the benchmark H+2 molecule offer the distinct advantage that they can be quantitatively compared with ab initio theory to confirm our understanding of strong-field coherent control via the carrier-envelope phase.© American Physical Society (APS). This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).http://rightsstatements.org/vocab/InC/1.0/https://web.archive.org/web/20181120135245/https://journals.aps.org/copyrightFAQ.htmlText