Title :
Chiral Coupling in T-shaped Gold Nanodimers
Author :
Canfield, B.K. ; Husu, Hannu ; Kauranen, Martti ; Laukkanen, Janne ; Bai, Benfeng ; Kuittinen, Markku ; Turunen, Jari
Author_Institution :
Tampere Univ. of Technol., Tampere
Abstract :
Strong optical activity in T-shaped metal nanodimers with a nanogap was shown through polarization-sensitive second-harmonic generation (SHG). Chirality in gold nanodimers was studied by circular-difference (CD) measurements, where the SHG efficiency of a sample is compared for left- and right-circular fundamental polarizations. A strong dependence of the SHG CD response on nanogap size that does not directly correlate with the dependence of the SHG intensity obtained was found.
Keywords :
chirality; gold; light polarisation; nanostructured materials; optical harmonic generation; Au; SHG intensity; T-shaped metal nanodimers; chirality; circular-difference measurements; nanogap size; polarization-sensitive second-harmonic generation; Arm; Bars; Gold; Laboratories; Nanoparticles; Nanostructures; Optical coupling; Optical harmonic generation; Optical polarization; Optical sensors;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4387026
