Measurements of light absorption efficiency in InSb nanowires

Summary, in English

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. (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

• Author: Andrius Jurgilaitis; Henrik Enquist; Maher Harb; Kimberly Dick Thelander; Mattias Borg; Ralf Nüske; Lars-Erik Wernersson; Jörgen Larsson
• Department/s: Atomic Physics; MAX IV Laboratory; Centre for Analysis and Synthesis; Solid State Physics; Department of Electrical and Information Technology
• Publishing year: 2014
• Language: English
• Publication/Series: Structural Dynamics
• Volume: 1
• Issue: 1
• Links: http://dx.doi.org/10.1063/1.4833559
• Document type: Journal article
• Publisher: American Institute of Physics (AIP)
• Topic: Nano Technology
• Status: Published
• ISBN/ISSN/Other: ISSN: 2329-7778