Measurement of large nonlinear refractive index of natural pigment extracted from Hibiscus rosa-sinensis leaves with a low power CW laser and by spatial self-phase modulation technique

2017 ◽  
Vol 173 ◽  
pp. 400-406 ◽  
Author(s):  
S Biswas ◽  
P Kumbhakar
Keyword(s):  
Refractive Index ◽  
Low Power ◽  
Nonlinear Refractive Index ◽  
Phase Modulation ◽  
Natural Pigment ◽  
Self Phase Modulation ◽  
Modulation Technique ◽  
Cw Laser ◽  
Hibiscus Rosa Sinensis

Nonlinear Refractive Index of Silicon Nanoparticles: A Short Review

2014 ◽  
Vol 1 (2) ◽  
pp. 87-97
Author(s):  
Sudakshina Prusty
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Phase Modulation ◽  
Silicon Nanoparticles ◽  
Nonlinear Coefficient ◽  
Short Review ◽  
Self Phase Modulation ◽  
Physical Mechanisms ◽  
Self Focusing ◽  
Physical Phenomena

This article discusses the nonlinear refractive index of silicon nanoparticles starting from the basic formalism to some of the consequent physical phenomena like self focusing and self phase modulation. Several experimental techniques mainly based on Z-scan are discussed to measure the nonlinear refractive index. Another less explored technique for silicon nanoparticles, which studies the far-field optical fringe pattern formed by spatial self-phase modulation, is also discussed. Computation of the nonlinear refractive index is shown in detail by employing these two techniques. While Z-scan can estimate the nonlinear coefficient of a medium in a chosen time scale, the optical fringe method can predict the overall nonlinear refractive index due to all possible physical mechanisms. Some of the recent results for silicon nanoparticles using these two techniques are also discussed.

scholarly journals Determination of nonlinear refractive index in a Ta2O5 rib waveguide using self-phase modulation

2004 ◽  
Vol 12 (21) ◽  
pp. 5110 ◽  
Author(s):  
Chao-Yi Tai ◽  
James S. Wilkinson ◽  
Nicolas M. B. Perney ◽  
M. Caterina Netti ◽  
F. Cattaneo ◽  
...  
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Phase Modulation ◽  
Rib Waveguide ◽  
Self Phase Modulation

Tunable effective nonlinear refractive index of graphene dispersions during the distortion of spatial self-phase modulation

2014 ◽  
Vol 104 (14) ◽  
pp. 141909 ◽  
Author(s):  
Gaozhong Wang ◽  
Saifeng Zhang ◽  
Fadhil A. Umran ◽  
Xin Cheng ◽  
Ningning Dong ◽  
...  
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Phase Modulation ◽  
Self Phase Modulation

scholarly journals Anisotropic nonlinear refractive index measurement of a photorefractive crystal via spatial self-phase modulation

2019 ◽  
Vol 27 (21) ◽  
pp. 30360 ◽  
Author(s):  
Omar Boughdad ◽  
Aurélien Eloy ◽  
Fabrice Mortessagne ◽  
Matthieu Bellec ◽  
Claire Michel
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Phase Modulation ◽  
Photorefractive Crystal ◽  
Refractive Index Measurement ◽  
Self Phase Modulation ◽  
Index Measurement

Nonlinear refractive index of Hibiscus Rosa-Sinensis by CW laser

2013 ◽  
Vol 42 (3) ◽  
pp. 286-290 ◽  
Author(s):  
E. Hoque ◽  
M. K. Biswas ◽  
A. Somadder ◽  
M. O. Faruk ◽  
S. M. Sharif ◽  
...  
Keyword(s):  
Refractive Index ◽  
Nonlinear Refractive Index ◽  
Cw Laser ◽  
Hibiscus Rosa Sinensis
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