|
|||||
|
|
Second harmonic generation from closed packed hexagonal structure of nano-nickel arrays |
|
| Authors: | Chieh-Chun Liu Juh-Tzeng Lue |
| Affiliation: | aDepartment of Electrical Engineering, National Tsing Hua University, Hsin Chu 30013, Taiwan bDepartment of Physics, National Tsing Hua University, Hsin Chu 30013, Taiwan |
| Abstract: | A closed packed hexagonal structure of nickel nanoparticles was fabricated by deposition of thin nickel films on self-assembled polystyrene micron spheres, which were made of nanospherical lithography in conjunction with left-off the micro spheres. The optical second harmonic generation from these periodically arrayed nickel nanoparticles reveals intensity with a value much larger than that generated from a uniform nickel-film of the same thickness. Quasi phase matching contributed from Bragg wave vectors of the periodic arrayed nickel nanoparticles can satisfactorily express this enhancement. |
| Keywords: | Surface second harmonic generation Nano-nickel arrays Photonic crystals |
| 本文献已被 ScienceDirect 等数据库收录！ | |