Observation of the second harmonic generation pumped by microscopic to extraterrestrial incoherent light sources

2011 ◽  
Vol 284 (22) ◽  
pp. 5376-5380 ◽  
Author(s):  
Gintaras Tamošauskas
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Light Sources ◽  
Incoherent Light

scholarly journals Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jiayi Wang ◽  
Zhuojun Liu ◽  
Jin Xiang ◽  
Bo Chen ◽  
Yuming Wei ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Nonlinear Material ◽  
Nonlinear Susceptibility ◽  
Light Sources ◽  
Frequency Converters ◽  
Nanophotonic Devices ◽  
Fs Laser

Abstract Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated with the single dielectric particles to boost the nonlinear light–matter interactions. Here, we fabricate single Mie-resonant LN nanospheres on a SiO2 substrate via the femtosecond (fs) laser ablation technique. By exploiting the magnetic dipole (MD) Mie resonance, UV SHG from the LN nanosphere is significantly enhanced with a measured conversion efficiency of 4.45 × 10−8 under the excitation of an fs laser at 750 nm. The single LN nanospheres achieved in this work could serve as Mie resonators for building nonlinear nanophotonic devices such as frequency converters and quantum light sources, etc.

Self-assembled organic hexagonal micro-prisms with high second harmonic generation efficiency for photonic devices

Nanoscale ◽  
2015 ◽  
Vol 7 (22) ◽  
pp. 10186-10192 ◽  
Author(s):  
Haihua Zhang ◽  
Qing Liao ◽  
Xuedong Wang ◽  
Zhenzhen Xu ◽  
Hongbing Fu
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Photonic Devices ◽  
Light Sources ◽  
Coherent Light ◽  
Generation Efficiency ◽  
Second Harmonic Generation Efficiency ◽  
Circuit Integration ◽  
Self Assembled

Multiwavelength coherent light sources are key components for circuit integration of nanophotonics.

Absolute Measurements of the Second Order Susceptibilities of ZnSe, ZnTe and ZnS

1998 ◽  
Vol 07 (04) ◽  
pp. 553-561 ◽  
Author(s):  
M. Kühnelt ◽  
H. P. Wagner
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Second Order ◽  
Light Sources ◽  
Single Crystalline ◽  
Absolute Measurements ◽  
Nm Range

The second order susceptibilities of single crystalline cubic ZnTe, ZnSe and ZnS have been determined using a Maker Oscillation technique. Q-switched Nd:YLF lasers emitting at fundamental wavelengths of λ F =1321 nm and λ F =1047 nm were used as light sources. The resulting second harmonic generation coefficients at λ F =1321 nm range from 8 pm/V (ZnS) to 52 pm/V (ZnTe). An increase of the values is observed at λ F =1047 nm as expected from the dispersion of the second order coefficients.

Test of directional photoionisation models of second harmonic generation in optical fibres

1992 ◽  
Vol 139 (2) ◽  
pp. 133 ◽  
Author(s):  
N.M. Lawandy ◽  
T.J. Driscoll ◽  
C.L. Adler ◽  
N.M. Lawandy
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Optical Fibres
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