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Originalveröffentlichung
DOI: 10.1364/OME.1.000046
Scopus
Zitationen: 43
Web of Science
Zitationen: 43

Nonlinear chiral imaging of subwavelength-sized twisted-cross gold nanodimers

Huttunen, M.J.; Bautista, G.; Decker, M.; Linden, S.; Wegener, M.; Kauranen, M.

Abstract:
We perform second-harmonic generation (SHG) microscopy with circularly polarized (CP) light to measure chirality of individual twisted-cross gold nanodimers. The chiral signatures, based on different SHG response for the two CP components of incident light, are clearly visible even with off-resonance excitation. The SHG responses of individual nanodimers are found to vary by about a factor of five. The technique thus has very high sensitivity to the nanoscale deformations of the structure. The chiral signatures of the dimers, however, are found to be more uniform, and the technique is thus able to recognize the handedness of the twisted nanodimers with high reliability.


Zugehörige Institution(en) am KIT Institut für Angewandte Physik (APH)
Publikationstyp Zeitschriftenaufsatz
Jahr 2011
Sprache Englisch
Identifikator ISSN: 2159-3930
KITopen ID: 1000027165
Erschienen in Optical Materials Express
Band 1
Heft 1
Seiten 46 - 56
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