scholarly journals Comment on ‘‘Normal incidence second‐harmonic generation in L‐valley AlSb/GaSb/Ga1−xAlxSb/AlSb stepped quantum wells’’ [Appl. Phys. Lett. 65, 2048 (1994)]

1996 ◽  
Vol 68 (13) ◽  
pp. 1872-1872 ◽  
Author(s):  
M. Zal/użny ◽  
V. Bondarenko
Keyword(s):  
Second Harmonic Generation ◽  
Quantum Wells ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Normal Incidence

scholarly journals Second Harmonic Generation from Phase-Engineered Metasurfaces of Nanoprisms

Micromachines ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 848 ◽  
Author(s):  
Kanta Mochizuki ◽  
Mako Sugiura ◽  
Hirofumi Yogo ◽  
Stefan Lundgaard ◽  
Jingwen Hu ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Field Enhancement ◽  
Normal Incidence ◽  
Electrical Field ◽  
Fundamental Wavelength ◽  
Reflectivity Spectra ◽  
Lift Off ◽  
Second Order Nonlinearity

Metasurfaces of gold (Au) nanoparticles on a SiO2-Si substrate were fabricated for the enhancement of second harmonic generation (SHG) using electron beam lithography and lift-off. Triangular Au nanoprisms which are non-centro-symmetric and support second-order nonlinearity were examined for SHG. The thickness of the SiO2 spacer is shown to be an effective parameter to tune for maximising SHG. Electrical field enhancement at the fundamental wavelength was shown to define the SHG intensity. Numerical modeling of light enhancement was verified by experimental measurements of SHG and reflectivity spectra at the normal incidence. At the plasmonic resonance, SHG is enhanced up to ∼3.5 × 103 times for the optimised conditions.

Spectroscopy of second-harmonic generation from ZnTe/Zn1−Mn Te quantum wells

1998 ◽  
Vol 43-44 ◽  
pp. 229-236 ◽  
Author(s):  
A.V Zayats ◽  
A.N Georgobiani ◽  
Yu.A Repeyev ◽  
D.E Ashenford ◽  
B Lunn
Keyword(s):  
Second Harmonic Generation ◽  
Quantum Wells ◽  
Harmonic Generation ◽  
Second Harmonic
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