scholarly journals Self-tuning of second-harmonic generation in GaAs nanowires enabled by nonlinear absorption

2019 ◽  
Vol 27 (22) ◽  
pp. 32480 ◽  
Author(s):  
L. Carletti ◽  
D. de Ceglia ◽  
M. A. Vincenti ◽  
C. De Angelis
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Absorption ◽  
Second Harmonic ◽  
Gaas Nanowires ◽  
Self Tuning

scholarly journals Anomalously Strong Second‐Harmonic Generation in GaAs Nanowires via Crystal‐Structure Engineering

2021 ◽  
pp. 2104671
Author(s):  
Bin Zhang ◽  
Jan E. Stehr ◽  
Ping‐Ping Chen ◽  
Xingjun Wang ◽  
Fumitaro Ishikawa ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Gaas Nanowires ◽  
Structure Engineering

Imaging of waveguiding and scattering interferences in individual GaAs nanowires via second-harmonic generation

2012 ◽  
Author(s):  
Rachel Grange ◽  
Gerald Brönstrup ◽  
Anton Sergeyev ◽  
Jessica Richter ◽  
Thomas Pertsch ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Gaas Nanowires

Saturation of the second harmonic generation from GaAs-filled metallic hole arrays by nonlinear absorption

2011 ◽  
Vol 83 (16) ◽  
Author(s):  
Jingyu Zhang ◽  
Li Wang ◽  
Sanjay Krishna ◽  
Mansoor Sheik-Bahae ◽  
S. R. J. Brueck
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Absorption ◽  
Second Harmonic ◽  
Hole Arrays

Second-Harmonic Generation Enhancement through Stretching in Patterned Arrays of GaAs Nanowires

2021 ◽  
Author(s):  
G. Saerens ◽  
E. Bloch ◽  
K. Frizyuk ◽  
V. Vogler-Neuling ◽  
E. Semenova ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Gaas Nanowires

scholarly journals Second-Harmonic Generation in Mie-Resonant GaAs Nanowires

2019 ◽  
Vol 9 (16) ◽  
pp. 3381 ◽  
Author(s):  
Domenico de Ceglia ◽  
Luca Carletti ◽  
Maria Antonietta Vincenti ◽  
Costantino De Angelis ◽  
Michael Scalora
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Resonance Condition ◽  
Double Resonance ◽  
Normal Modes ◽  
Two Dimensions ◽  
Photon Absorption ◽  
Field Region ◽  
Gaas Nanowires

We investigate the enhancement of second-harmonic generation in cylindrical GaAs nanowires. Although these nanostructures confine light in two dimensions, power conversion efficiencies on the order of 10 − 5 with a pump peak intensity of ~ 1   GW / cm 2 are possible if the pump and the second-harmonic fields are coupled to the Mie-type resonances of the nanowire. We identify a large range of nanowire radii in which a double-resonance condition, i.e., both the pump and the second-harmonic fields excite normal modes of the nanowire, induces a high-quality-factor peak of conversion efficiency. We show that second-harmonic light can be scattered with large efficiency even if the second-harmonic photon energy is larger than 1.42 eV, i.e., the electronic bandgap of GaAs, above which the material is considered opaque. Finally, we evaluate the efficiency of one-photon absorption of second-harmonic light and find that resonant GaAs nanowires absorb second-harmonic light in the near-field region almost at the same rate at which they radiate second-harmonic light in the far-field region.

Broadband second harmonic generation in GaAs nanowires by femtosecond laser sources

2013 ◽  
Vol 103 (14) ◽  
pp. 143110 ◽  
Author(s):  
Hao He ◽  
Xiaoqing Zhang ◽  
Xin Yan ◽  
Lili Huang ◽  
Chenglin Gu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Gaas Nanowires ◽  
Laser Sources

Structural discontinuity induced surface second harmonic generation in single, thin zinc-blende GaAs nanowires

Nanoscale ◽  
2017 ◽  
Vol 9 (41) ◽  
pp. 16066-16072 ◽  
Author(s):  
Yu-Ming Wei ◽  
Ying Yu ◽  
Jing Wang ◽  
Lin Liu ◽  
Hai-Qiao Ni ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Zinc Blende ◽  
Optical Second Harmonic Generation ◽  
Structural Discontinuity ◽  
Gaas Nanowires ◽  
Individual Self

We investigate optical second harmonic generation (SHG) from individual self-catalyzed zinc-blende (ZB) GaAs nanowires (NWs), where the polarimetry strongly depends on the NW diameter.

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