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Title: Pre-determining the location of electromigrated gaps by nonlinear optical imaging

In this paper we describe a nonlinear imaging method employed to spatially map the occurrence of constrictions occurring on an electrically stressed gold nanowire. The approach consists at measuring the influence of a tightly focused ultrafast pulsed laser on the electronic transport in the nanowire. We found that structural defects distributed along the nanowire are efficient nonlinear optical sources of radiation and that the differential conductance is significantly decreased when the laser is incident on such electrically induced morphological changes. This imaging technique is applied to pre-determine the location of the electrical failure before it occurs.
Authors:
; ; ; ;  [1]
  1. Laboratoire Interdisciplinaire Carnot de Bourgogne CNRS-UMR 6303, Université de Bourgogne, 21078 Dijon (France)
Publication Date:
OSTI Identifier:
22311060
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 2; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; DEFECTS; ELECTRIC CONDUCTIVITY; FAILURES; GOLD; LASER RADIATION; NANOWIRES; NONLINEAR PROBLEMS; PULSES; STRESSES