Simple and efficient scanning tunneling luminescence detection at low-temperature

J.G. Keizer, J.K. Garleff, P.M. Koenraad

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

We have designed and built an optical system to collect light that is generated in the tunneling region of a low-temperature scanning tunneling microscope. The optical system consists of an in situ lens placed approximately 1.5 cm from the tunneling region and an ex situ optical lens system to analyze the emitted light, for instance, by directing the light into a spectrometer. As a demonstration, we measured tip induced photoluminescence spectra of a gold surface. Furthermore, we demonstrate that we can simultaneously record scanning tunneling microscope induced luminescence and topography of the surface both with atomic resolution.
Original languageEnglish
Pages (from-to)123704-1/5
Number of pages5
JournalReview of Scientific Instruments
Volume80
Issue number12
DOIs
Publication statusPublished - 2009

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