Velocity map imaging VUV angle-resolved photoelectron spectroscopy of isolated silver sulfide nanoparticles

Attosecond angle-resolved photoelectron spectroscopy.

We report experiments on the characterization of a train of attosecond pulses obtained by high-harmonic generation, using mixed-color (XUV+IR) atomic two-photon ionization and electron detection on a velocity map imaging detector. We demonstrate that the relative phase of the harmonics is encoded both in the photoelectron yield and the angular distribution as a function of XUV-IR time delay, th...

Slow photoelectron velocity-map imaging spectroscopy of the vinoxide anion.

High resolution photoelectron spectra of the vinoxide anion are obtained by slow electron velocity-map imaging. Transitions between the anion X (1)A(') ground electronic state and the radical X (2)A(") and A (2)A(') states are observed. This experiment yields a precise value of 1.8250+/-0.0012 eV for the adiabatic electron affinity and 0.996+/-0.003 eV for the A-X term energy of the vinoxy radi...

Slow photoelectron velocity-map imaging spectroscopy of cold thiozonide (S3(-)).

We report high-resolution anion photoelectron spectra of thiozonide (S3(-)) acquired by slow electron velocity-map imaging (SEVI). The ions were cryogenically cooled within an ion trap before photodetachment. We measure an electron affinity of 2.3630(9) eV, resolving discrepancies in previously reported photoelectron spectra that resulted from the presence of vibrational hot bands. The SEVI spe...

Angle-resolved photoelectron spectroscopy of C60.

Slow photoelectron velocity-map imaging spectroscopy of C3O- and C3S-.

High-resolution photodetachment spectra of C(3)O(-) and C(3)S(-) using slow photoelectron velocity-map imaging spectroscopy are reported. Well-resolved transitions to the neutral X (1)Sigma(+) state are seen for both species. The electron affinities of C(3)O and C(3)S are determined to be EA(C(3)O) = 1.237+/-0.003 eV and EA(C(3)S) = 1.5957+/-0.0010 eV, respectively. Several vibrational frequenc...