%0 Journal Article
%T Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber
%A H. Bromberger
%A A. Ermolov
%A F. Belli
%A H. Liu
%A F. Calegari
%A M. Chavez-Cervantes
%A M. T. Li
%A C. T. Lin
%A A. Abdolvand
%A P. St. J. Russell
%A A. Cavalleri
%A J. C. Travers
%A I. Gierz
%J Physics
%D 2015
%I arXiv
%R 10.1063/1.4929542
%X A recently developed source of ultraviolet radiation, based on optical soliton propagation in a gas-filled hollow-core photonic crystal fiber, is applied here to angle-resolved photoemission spectroscopy (ARPES). Near-infrared femtosecond pulses of only few {\mu}J energy generate vacuum ultraviolet (VUV) radiation between 5.5 and 9 eV inside the gas-filled fiber. These pulses are used to measure the band structure of the topological insulator Bi2Se3 with a signal to noise ratio comparable to that obtained with high order harmonics from a gas jet. The two-order-of-magnitude gain in efficiency promises time-resolved ARPES measurements at repetition rates of hundreds of kHz or even MHz, with photon energies that cover the first Brillouin zone of most materials.
%U http://arxiv.org/abs/1504.07505v1