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Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber

MPS-Authors
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Ermolov,  A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Belli,  F.
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Abdolvand,  A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Travers,  J. C.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Bromberger, H., Ermolov, A., Belli, F., Liu, H., Calegari, F., Chavez-Cervantes, M., et al. (2015). Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber. APPLIED PHYSICS LETTERS, 107(9): 091101. doi:10.1063/1.4929542.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6384-3
Abstract
A recently developed source of ultraviolet radiation, based on optical soliton propagation in a gasfilled 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 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. (C) 2015 AIP Publishing LLC.