Imaging molecular structure through femtosecond photoelectron diffraction on aligned and oriented gas-phase molecules
- Boll, R.
- Rouzée, A.
- Adolph, M.
- Anielski , D.
- Aquila, A.
- Bari, S.
- Bomme, C.
- Bostedt, C.
- Bozek, J.
- Chapman, H.
- Christensen, L.
- Coffee, R.
- Coppola, N.
- De, S.
- Decleva, P.
- Epp , S.
- Erk, B.
- Filsinger, F.
- Foucar, L.
- Gorkhover, T.
- Gumprecht, L.
- Hömke, A.
- Holmegaard, L.
- Johnsson, P.
- Kienitz, J.
- Kierspel, T.
- Krasniqi, F.
- Kühnel, K.
- Maurer, J.
- Messerschmidt, M.
- Moshammer, R.
- Müller, N.
- Rudek, B.
- Savelyev, E.
- Schlichting, I.
- Schmidt, C.
- Scholz, F.
- Schorb, S.
- Schulz, J.
- Seltmann, J.
- Stener, M.
- Stern, S.
- Techert, S.
- Thøgersen, J.
- Trippel, S.
- Viefhaus, J.
- Vrakking, M.
- Stapelfeldt, H.
- Küpper, J.
- Ullrich, J.
- Rudenko, A.
- Rolles, D.
DOIAbstract
This paper gives an account of our progress towards performing femtosecond time-resolved photoelectron diffraction on gas-phase molecules in a pump–probe setup combining optical lasers and an X-ray free-electron laser. We present results of two experiments aimed at measuring photoelectron angular distributions of laser-aligned 1-ethynyl-4-fluorobenzene (C<sub>8</sub>H<sub>5</sub>F) and dissociating, laser-aligned 1,4-dibromobenzene (C<sub>6</sub>H<sub>4</sub>Br<sub>2</sub>) molecules and discuss them in the larger context of photoelectron diffraction on gas-phase molecules. We also show how the strong nanosecond laser pulse used for adiabatically laser-aligning the molecules influences the measured electron and ion spectra and angular distr...
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