Circular dichroism in STM-excited luminescence on metals

For a tunneling junction formed by an asymmetric tip apex and a flat surface, we find that highly circularly polarized light can be emitted by inelastic tunneling excitation. Furthermore, the degree of circular polarization exhibits a strong dependence on the azimuthal angle of emission. This indica...

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Bibliographic Details
Published inEurophysics letters Vol. 36; no. 8; pp. 577 - 582
Main Authors Parga, A. L. Vázquez de, Alvarado, S. F
Format Journal Article
LanguageEnglish
Published IOP Publishing 10.12.1996
EDP Sciences
Subjects
11.30.Rd
33.55.Ad
73.20.Mf
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Summary:For a tunneling junction formed by an asymmetric tip apex and a flat surface, we find that highly circularly polarized light can be emitted by inelastic tunneling excitation. Furthermore, the degree of circular polarization exhibits a strong dependence on the azimuthal angle of emission. This indicates that the geometrical features of the tip apex can define a chiral system.
Bibliography:istex:BB4C471CDFD2E9FA1DEC841516E04DFE30BB8A75
ark:/67375/80W-8SFH5RW4-7
publisher-ID:36803
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i1996-00105-4