Time-resolved study electronic and thermal contributions to the nonlinear refractive index of Nd3+:SBN laser crystals

2008 ◽  
Vol 128 (5-6) ◽  
pp. 1013-1015 ◽  
Author(s):  
L.R. Freitas ◽  
C. Jacinto ◽  
A. Ródenas ◽  
D. Jaque ◽  
T. Catunda
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Time Resolved ◽  
Laser Crystals

Picosecond nonlinear refraction of C2H4Cl2 and C2H4Br2 at 532nm studied with Z-scan technique

2018 ◽  
Vol 27 (02) ◽  
pp. 1850015
Author(s):  
Yu-Ting Kuo ◽  
Po-Yuan Huang ◽  
Yi-Ci Li ◽  
Jaw-Luen Tang ◽  
Tai-Huei Wei
Keyword(s):  
Refractive Index ◽  
Electric Field ◽  
Nonlinear Refractive Index ◽  
Kerr Effect ◽  
Nonlinear Response ◽  
Nonlinear Refraction ◽  
Molecular Motions ◽  
Time Resolved ◽  
Picosecond Pulses

We investigated optical nonlinear refraction (NLR) of C2H4Cl2 and C2H4Br2 using the [Formula: see text]-scan technique with 532[Formula: see text]nm 17 picosecond pulses delivered at 10[Formula: see text]Hz. We found that the latter shows larger positive Kerr nonlinear refractive index than the former, [Formula: see text][Formula: see text]cm2/W versus [Formula: see text][Formula: see text]cm2/W. According to our additional study on time-resolved Raman-induced Kerr effect, this observed trend is ascribed to stronger inter-molecular motions of diffusive reorientation and polarizability distortion in C2H4Br2 than in C2H4Cl2. This study helps to understand the nonlinear response of molecular motions to electric-field in great details which have not been well-defined previously.

Nonlinear refractive index measurements using time-resolved digital holography

2018 ◽  
Vol 43 (2) ◽  
pp. 304 ◽  
Author(s):  
Balys Momgaudis ◽  
Stephane Guizard ◽  
Allan Bilde ◽  
Andrius Melninkaitis
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Digital Holography ◽  
Time Resolved

Measurement of nonlinear refractive index by time-resolved z-scan technique

1999 ◽  
Vol 160 (1-3) ◽  
pp. 125-129 ◽  
Author(s):  
Tadashi Kawazoe ◽  
Hitoshi Kawaguchi ◽  
Jun Inoue ◽  
Osamu Haba ◽  
Mitsuru Ueda
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Time Resolved

Investigating the Nonlinear Optical Response of Pepper Oil under Low Power Irradiation with Continuous Wave Visible Laser Beam

2020 ◽  
pp. 131-138
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Continuous Wave ◽  
Diffraction Integral ◽  
Visible Laser ◽  
Limiting Property ◽  
Kirchhoff Diffraction Integral ◽  
Theoretical Results ◽  
Good Agreement

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.

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