Third-harmonic generation enhancement by the interaction of few-cycle waves in nonlinear optical media

Author(s):  
M. A. Kniazev ◽  
S. A. Kozlov ◽  
K. Dolgaleva
Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3194
Author(s):  
Adrian Petris ◽  
Petronela Gheorghe ◽  
Tudor Braniste ◽  
Ion Tiginyanu

The ultrafast third-order optical nonlinearity of c-plane GaN crystal, excited by ultrashort (fs) high-repetition-rate laser pulses at 1550 nm, wavelength important for optical communications, is investigated for the first time by optical third-harmonic generation in non-phase-matching conditions. As the thermo-optic effect that can arise in the sample by cumulative thermal effects induced by high-repetition-rate laser pulses cannot be responsible for the third-harmonic generation, the ultrafast nonlinear optical effect of solely electronic origin is the only one involved in this process. The third-order nonlinear optical susceptibility of GaN crystal responsible for the third-harmonic generation process, an important indicative parameter for the potential use of this material in ultrafast photonic functionalities, is determined.


2002 ◽  
Vol 32 (9) ◽  
pp. 781-788 ◽  
Author(s):  
R A Ganeev ◽  
Nataliya V Kamanina ◽  
I A Kulagin ◽  
A I Ryasnyansky ◽  
R I Tugushev ◽  
...  

2005 ◽  
Vol 97 (1) ◽  
pp. 013906
Author(s):  
Jusuke Shimura ◽  
Kazuhito Hashimoto ◽  
Shin-ichi Ohkoshi

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