Large enhancement of second harmonic generation in polymer films by microcavities

2000 ◽  
Vol 76 (5) ◽  
pp. 538-540 ◽  
Author(s):  
H. Cao ◽  
D. B. Hall ◽  
J. M. Torkelson ◽  
C.-Q. Cao
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Polymer Films ◽  
Second Harmonic ◽  
Large Enhancement

Enhancement of second harmonic generation using a novel asymmetric metal–graphene–insulator–metal plasmonic waveguide

2018 ◽  
Vol 27 (01) ◽  
pp. 1850003 ◽  
Author(s):  
Mohamadreza Soltani
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Field Enhancement ◽  
The Other ◽  
Nonlinear Susceptibility ◽  
Optical Process ◽  
Large Enhancement ◽  
Nonlinear Optical Process

Here, we propose a novel plasmonic structure, called asymmetric plasmonic nanocavity grating (APNCG), which is shown to dramatically enhance nonlinear optical process of second harmonic generation (SHG). The proposed structure consists of two different metals on both sides of lithium niobate and a thin layer of graphene. By using two different metals the nonlinear susceptibility of the waveguide would be increased noticeably causing to increase SHG. On the other hand, it consists of two identical gratings on one side. By two identical gratings, the pump beam is coupled to two opposing SPP waves, which interfere with each other and result in SPP standing wave in the region between the two gratings. The distance between two gratings will be optimized to reach the highest SHG. It will be shown that by optimizing the geometry of proposed structure and using different metals, field enhancement in APNCG waveguides can result in large enhancement of SHG.

Adsorption Kinetics of Ultrathin Polymer Films in the Melt Probed by Dielectric Spectroscopy and Second-Harmonic Generation

Langmuir ◽  
2011 ◽  
Vol 27 (22) ◽  
pp. 13533-13538 ◽  
Author(s):  
Cinzia Rotella ◽  
Simone Napolitano ◽  
Stefaan Vandendriessche ◽  
Ventsislav K. Valev ◽  
Thierry Verbiest ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Adsorption Kinetics ◽  
Polymer Films ◽  
Dielectric Spectroscopy ◽  
Second Harmonic ◽  
Ultrathin Polymer Films ◽  
Kinetics Of

Improved and enhanced thermal stable second harmonic generation of poled polymer films

2000 ◽  
Author(s):  
Zhanjia Hou ◽  
Liying Liu ◽  
Haibo Liu ◽  
Lei Xu ◽  
Wencheng Wang ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Polymer Films ◽  
Second Harmonic ◽  
Poled Polymer ◽  
Thermal Stable
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