An innovative Yb-based ultrafast deep ultraviolet source for time-resolved photoemission experiments

作者：Boschini F^*; Hedayat H; Dallera C; Farinello P; Manzoni C; Magrez A; Berger H; Cerullo G; Carpene E

来源：Review of Scientific Instruments, 2014, 85(12): 123903.

DOI：10.1063/1.4903347

Time- and angle-resolved photoemission spectroscopy is a powerful technique to study ultrafast electronic dynamics in solids. Here, an innovative optical setup based on a 100-kHz Yb laser source is presented. Exploiting non-collinear optical parametric amplification and sum-frequency generation, ultrashort pump (h nu = 1.82 eV) and ultraviolet probe (h nu = 6.05 eV) pulses are generated. Overall temporal and instrumental energy resolutions of, respectively, 85 fs and 50 meV are obtained. Time- and angle-resolved measurements on BiTeI semiconductor are presented to show the capabilities of the setup.

• 出版日期2014-12