title: Measurements of light absorption efficiency in InSb nanowires.
abstract: We report on measurements of the light absorption efficiency of InSb nanowires. The absorbed 70 fs light pulse generates carriers, which equilibrate with the lattice via electron-phonon coupling. The increase in lattice temperature is manifested as a strain that can be measured with X-ray diffraction. The diffracted X-ray signal from the excited sample was measured using a streak camera. The amount of absorbed light was deduced by comparing X-ray diffraction measurements with simulations. It was found that 3.0(6)% of the radiation incident on the sample was absorbed by the nanowires, which cover 2.5% of the sample.
authors.affiliation: Department of Physics, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: A
authors.initials: A
authors.lastname: Jurgilaitis
authors.affiliation: MAX IV laboratory, Lund University , P.O. Box 118, Lund, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Enquist
authors.affiliation: Department of Physics, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: M
authors.initials: M
authors.lastname: Harb
authors.forename: K A
authors.initials: KA
authors.lastname: Dick
authors.affiliation: Department of Physics, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: B M
authors.initials: BM
authors.lastname: Borg
authors.affiliation: Department of Physics, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: R
authors.initials: R
authors.lastname: Nüske
authors.affiliation: Department of Electrical and Information Technology, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: L-E
authors.initials: LE
authors.lastname: Wernersson
authors.affiliation: Department of Physics, Lund University , P.O. Box 118, SE-221 00 Lund, Sweden.
authors.forename: J
authors.initials: J
authors.lastname: Larsson