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Journal articles
Fluorescence imaging of submicrometric lattices of colour centres in LiF by an apertureless scanning near-field optical microscope
Abstract : We report fluorescence imaging of colour centres in Lithium Fluoride (LiF) using an apertureless Scanning Near Field Optical Microscope (SNOM). The sample consists of periodically spaced submicrometric coloured areas F2 laser-active colour centres produced by low-energy electron beam lithography on the surface of a LiF thin film. A silicon Atomic Force Microscope (AFM) tip is used as an apertureless optical probe. AFM images show a uniform surface roughness with a RMS of 7.2 nm. The SNOM images of the red fluorescence of colour centres excited at λ=458 nm with an argon ion laser show that the local photon emission is unambiguously related to the coloured areas and that topographic artefacts can be excluded.
https://hal-utt.archives-ouvertes.fr/hal-02332461
Contributor : Daniel Gavrysiak Connect in order to contact the contributor
Submitted on : Thursday, October 24, 2019 - 5:55:31 PM
Last modification on : Tuesday, October 19, 2021 - 10:59:43 PM
Contributor : Daniel Gavrysiak Connect in order to contact the contributor
Submitted on : Thursday, October 24, 2019 - 5:55:31 PM
Last modification on : Tuesday, October 19, 2021 - 10:59:43 PM
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