Applications of Fresnel-Kirchhoff diffraction integral in linear and nonlinear optics: a didactic introduction

Author(s):  
V. Pilla ◽  
G. G. G. Costa ◽  
Tomaz Catunda
2020 ◽  
pp. 131-138

The nonlinear optical properties of pepper oil are studied by diffraction ring patterns and Z-scan techniques with continuous wave beam from solid state laser at 473 nm wavelength. The nonlinear refractive index of the sample is calculated by both techniques. The sample show high nonlinear refractive index. Based on Fresnel-Kirchhoff diffraction integral, the far-field intensity distributions of ring patterns have been calculated. It is found that the experimental results are in good agreement with the theoretical results. Also the optical limiting property of pepper oil is reported. The results obtained in this study prove that the pepper oil has applications in nonlinear optical devices.


2018 ◽  
Vol 96 (2) ◽  
pp. 157-164 ◽  
Author(s):  
H.A. Sultan ◽  
Qusay M.A. Hassan ◽  
H. Bakr ◽  
Ahmed S. Al-Asadi ◽  
D.H. Hashim ◽  
...  

Self-diffraction rings or spatial self-phase modulation were observed in rose, linseed, and chamomile oils under 473 nm continuous wave laser irradiation. The measurements were performed by propagating the laser beam through a cell containing each sample. The number of rings as well as diameter of the outer-most ring in each pattern obtained increases monotonically with increasing input power. The diffraction ring patterns are theoretically simulated using Fresnel–Kirchhoff diffraction integral in the case of an optically thin medium. The experimental and simulation results show that when a laser beam with Gaussian profile is transmitted through an oil medium, a series of circular diffraction rings forms in the intensity distribution pattern in the far-field. The nonlinear refractive index, n2, was determined from the number of observed rings and by the Z-scan technique. The results obtained from self-diffraction rings experiment and Z-scan are compared and analyzed for the three different oils. A large value was obtained of the order of n2 = 1.32 × l0−6 cm2/W for chamomile oil using the diffraction ring pattern technique. This large nonlinearity is attributed to a thermal effect resulting from linear absorption. Moreover, the optical limiting characteristics of rose, linseed, and chamomile oils were investigated.


2004 ◽  
Vol 21 (10) ◽  
pp. 1818 ◽  
Author(s):  
John E. Heebner ◽  
Philip Chak ◽  
Suresh Pereira ◽  
John E. Sipe ◽  
Robert W. Boyd

1996 ◽  
Author(s):  
V. N. Belyi ◽  
Nikolai S. Kazak ◽  
V. K. Pavlenko ◽  
Nikolay A. Khilo ◽  
Antoliy G. Khatkevich

Author(s):  
F. M. Schellenberg ◽  
R. L. Byer ◽  
R. D. Miller ◽  
R. H. French ◽  
S. S. Kano ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (61) ◽  
pp. 35771-35779
Author(s):  
Hua Xie ◽  
Shenghao Fang ◽  
He Zhao ◽  
Xiaoliang Xu ◽  
Ning Ye ◽  
...  

The semiconductor zinc germanium diphosphide (ZnGeP2) has wide applications in the infrared nonlinear optics (NLO) due to its high nonlinear optical coefficient, wide infrared transparency range and high thermal conductivity.


2007 ◽  
Vol 62 (12) ◽  
pp. 1525-1529 ◽  
Author(s):  
Herbert Meier ◽  
Frank Nicklas ◽  
Ralf Petermann

Conjugated compounds based on vinylthiazole units show a strong polarization along the π chain, when NR2 groups as electron donors are attached in the terminal position. The effect can be even more enhanced by a CHO group as electron acceptor in the opposite terminal position. This property makes such oligomers (n = 1, 2, . . . ) interesting for applications in linear and nonlinear optics.


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