Second harmonic generation
(SHG)
due to localization of the field
incident ω radiation
ω
ω1
SHG process
ω2
2ω
converted to 2ω radiation
1
Second harmonic generation
(SHG)
due to localization of the field
Second harmonic generation
(SHG)
enhances due to
Fano resonance
very strong SHG field
place a
Increases
conversion efficiency
in Solar Cells
entanglement
(squeezing)
of plasmon field
squeezing
of radiated photon field
2
SHG cross-section (nm2)
SHG cross-section (nm2)
3D Boundary Element Method Simulations
(a)
MNPBEM
Simulation
single
λsh=λexc/2 (nm)
second harmonic generation
with a
single MNP (4 nm2)
(b)
MNPBEM
Simulation
SHG is enhanced
100 times
due to
Fano resonance of QD
(500 nm2)
coupled
λsh=λexc/2 (nm)
[1] Deniz Turkpence, Gursoy B. Akguc, Alpan Bek,
Mehmet Emre Tasgin, “Engineering nonlinear
response of nanomaterials using Fano resonances”,
arXiv:1311.0791
3
insert 2 QDs
SHG can be enhanced
107 times
due to
path interference effect
[2] Mehmet Emre Tasgin, “Divergent nonlinear
optical response of three resonator system via Fano
resonances”, arXiv:1404.3901
3
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ω 2ω ω ω