Premium
Optical second harmonic generation of V‐shaped chromium nanoholes—dependence on the structure parameters of the nanoholes
Author(s) -
Quang Ngo Khoa,
Miyauchi Yoshihiro,
Mizutani Goro,
Charlton Martin D.,
Chen Ruiqi,
Boden Stuart,
Rutt Harvey
Publication year - 2014
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.5643
Subject(s) - chromium , second harmonic generation , materials science , intensity (physics) , electron , optics , high harmonic generation , nonlinear optical , optoelectronics , molecular physics , nonlinear system , chemistry , physics , laser , quantum mechanics , metallurgy
We investigated optical second harmonic generation (SHG) from the arrays of V‐shaped chromium nanoholes with the arm width of 50 nm. We systematically investigated the dependence of the SHG intensity on the designed parameters of Cr nanoholes, i.e. the arm length and apex angle. Several combinations of structural parameters of apex angles (A) and arm lengths (L) were examined. The SHG intensity in Pin/Pout configuration was enhanced when L was enlarged. We suggest that the nonlinear optical behavior was dictated by the bulk contribution of metallic electrons. Copyright © 2014 John Wiley & Sons, Ltd.