A quantitative study of the laser-induced ring pattern and optical limiting from 4-chlloro-3-metthoxyniittrobenzene solluttiion

الملخص EN

The optical limiting performance of 4-Chloro-3-methoxynitrobenzene is described in solution state.

The measurements were performed using a 100mW solid state cw laser at 473 nm.

Parameters of optical limiting properties such as the threshold and saturated values can be engineered by modifying the parameters of the set-up and the concentration of the sample.

Also this study observed and studied diffraction rings generated in 4-Chloro-3-methoxynitrobenzene using same cw laser.

The number of rings increases almost exponentially with increasing concentration of the samples.

The refractive index change, Δn, and effective nonlinear refractive index , nR2R, are found to be 10-5 and 10-9 cmP2P / Watt, respectively.

The effective nonlinear refractive index, nR2R, was determined based on the observed number of rings.

The threshold values of the sample at 14, 18 and 20 mM concentration are 7.

1, 6.55 and 6.34 mW respectively.

This large nonlinearity is attributed to a thermal effect.

The present studies suggest that sample is a potential candidate for optical device applications such as optical limiters.