Title :
Gap-dependent nonlinear optical activity in chiral gold nanodimers
Author :
Husu, Hannu ; Canfield, Brian K. ; Kauranen, Martti ; Laukkanen, Janne ; Bai, Benfeng ; Kuittinen, Markku ; Turunen, And Jari
Author_Institution :
Opt. Lab., Tampere Univ. of Technol., Tampere
Abstract :
T-shaped gold nanodimers with nanogaps are chiral when their horizontal and vertical bars have non-orthogonal orientations. The resulting optical activity in second-harmonic generation exhibits unexpected gap dependence, which is explained by local-field effects.
Keywords :
chirality; gold; nanostructured materials; optical harmonic generation; optical rotation; Au; T-shaped chiral gold nanodimers; nanogaps-dependent nonlinear optical activity; nonorthogonal orientations; second-harmonic generation; Bars; Electron optics; Gold; Nonlinear optics; Optical harmonic generation; Optical mixing; Optical polarization; Physics; Plasmons; Resonance; (160.1585) Chiral media; (190.0190) Nonlinear optics; (260.3910) Metal optics;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
