Title :
Robust nonlinear chiral responses from gold nanoparticle arrays
Author :
Canfield, Brian K. ; Kujala, Sami ; Laiho, Kaisa ; Kauranen, Martti ; Jefimovs, Konstantins ; Turunen, Jari
Author_Institution :
Inst. of Phys., Tampere Univ. of Technol., Finland
Abstract :
Strong chiral responses from arrays of L-shaped gold nanoparticles are observed through second-harmonic circular dichroism and tensor measurements. Comparisons suggest that small-scale defects are the primary source of broken symmetry which makes the samples chiral.
Keywords :
chirality; circular dichroism; gold; nanoparticles; optical harmonic generation; Au; L-shaped gold nanoparticle array; robust nonlinear chiral response; second-harmonic circular dichroism; small-scale defect; tensor measurement; Gold; Gratings; Nanoparticles; Nonlinear optics; Optical arrays; Optical polarization; Optical sensors; Robustness; Rotation measurement; Tensile stress;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1548691
