scholarly journals Second harmonic generation in the near field and far field: A sensitive tool to probe crystalline homogeneity

2007 ◽  
Vol 101 (8) ◽  
pp. 083111 ◽  
Author(s):  
Laurent Mahieu-Williame ◽  
Samuel Grésillon ◽  
Mireille Cuniot-Ponsard ◽  
Claude Boccara
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Near Field ◽  
Far Field ◽  
Sensitive Tool

scholarly journals Light-induced symmetry breaking for enhancing second-harmonic generation from an ultrathin plasmonic nanocavity

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Guang-Can Li ◽  
Dangyuan Lei ◽  
Meng Qiu ◽  
Wei Jin ◽  
Sheng Lan ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Noble Metals ◽  
Second Harmonic ◽  
Near Field ◽  
Field Enhancement ◽  
Plasmonic Nanostructures ◽  
Far Field ◽  
Field Amplification ◽  
Gold Nanosphere

AbstractEfficient frequency up-conversion of coherent light at the nanoscale is highly demanded for a variety of modern photonic applications, but it remains challenging in nanophotonics. Surface second-order nonlinearity of noble metals can be significantly boosted up by plasmon-induced field enhancement, however the related far-field second-harmonic generation (SHG) may also be quenched in highly symmetric plasmonic nanostructures despite huge near-field amplification. Here, we demonstrate that the SHG from a single gold nanosphere is significantly enhanced when tightly coupled to a metal film, even in the absence of a plasmon resonance at the SH frequency. The light-induced electromagnetic asymmetry in the nanogap junction efficiently suppresses the cancelling of locally generated SHG fields and the SH emission is further amplified through preferential coupling to the bright, bonding dipolar resonance mode of the nanocavity. The far-field SHG conversion efficiency of up to $$3.56\times 10^{-7}$$ 3.56 × 1 0 − 7 W−1 is demonstrated from a single gold nanosphere of 100 nm diameter, two orders of magnitude higher than for complex double-resonant plasmonic nanostructures. Such highly efficient SHG from a metal nanocavity also constitutes an ultrasensitive nonlinear nanoprobe to map the distribution of longitudinal vectorial light fields in nanophotonic systems.

scholarly journals Second harmonic generation from 3D nanoantennas: on the surface and bulk contributions by far-field pattern analysis

2011 ◽  
Vol 19 (27) ◽  
pp. 26752 ◽  
Author(s):  
Alessio Benedetti ◽  
Marco Centini ◽  
Mario Bertolotti ◽  
Concita Sibilia
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Pattern Analysis ◽  
Second Harmonic ◽  
Field Pattern ◽  
Far Field ◽  
Far Field Pattern

Near-field microscopy of second-harmonic generation

1999 ◽  
Author(s):  
Anatoly V. Zayats ◽  
Igor I. Smolyaninov ◽  
Christopher C. Davis
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Near Field

Controlled fabrication of silver or gold nanoparticle near-field optical atomic force probes: Enhancement of second-harmonic generation

2002 ◽  
Vol 81 (18) ◽  
pp. 3461-3463 ◽  
Author(s):  
Inna Barsegova ◽  
Aaron Lewis ◽  
Artium Khatchatouriants ◽  
Alexandra Manevitch ◽  
Andrei Ignatov ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Gold Nanoparticle ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Near Field ◽  
Atomic Force ◽  
Force Probes

Slab lasers and second harmonic generation in near field

2009 ◽  
Author(s):  
Daijun Li ◽  
Peng Zhu ◽  
Zhe Ma ◽  
Rüdiger Haas ◽  
Alexander Schell ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Near Field ◽  
Slab Lasers
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