Saltar al contenido
Merck

Single-beam Z-scan measurement of the third-order optical nonlinearities of azo dyes.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy (2007-02-28)
C Gayathri, A Ramalingam
RESUMEN

Organic dyes are very attractive optical materials for photonics and biophotonic applications. To quantitatively characterize their third-order nonlinear coefficients we have performed the experiments on two different azo dyes using a diode-pumped Nd:YAG laser at 532 nm. The |chi(3)| is of the order of 10(-6) esu. The relative contributions from nonlinear absorption (NLA) and nonlinear refraction (NLR) are dependent on the chemical structure and linear absorption of the dyes.

MATERIALES
Referencia del producto
Marca
Descripción del producto

Sigma-Aldrich
Acid Red 1, Dye content 60 %
Supelco
Acid Red 73, analytical standard
Supelco
Red 2G, analytical standard