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Thermal lens and all optical switching study of DB dye solution

M. D. ZIDAN1,* , A. ALLAHHAM1, A. GHANEM2, N. MOUSA3

Affiliation

  1. Department of Physics, AEC, P. O. Box 6091, Damascus, Syria
  2. Higher Institute for Laser Research and Applications, Damascus University, Syria
  3. Scientific office, AEC, P. O. Box 6091, Damascus, Syria

Abstract

The thermal lens and all optical switching effects of direct blue71dye were investigated using pump-probe laser beam z-scan configuration. The results have shown the influence of the power pump laser on the temporal evolution ofa thermal lens. The thermal lens parameters have been evaluated, such as: θ, tc, D, dn/dt, n2 and ∆n. Then, the all-optical switching process was investigated using the SXPM configuration. Our new results confirmed that the strong pump green beam can modify the probe's low laser beam by generating diffraction ring patterns, which confirms the possibility of using the direct blue71dye as nonlinear optical medium for modifying the probe laser beam signal from the “off” state to the “on” state through nonlinear optical processes. This is promising for use in light-manipulated logic circuits”, which is important for practical applications..

Keywords

Thermal lens effect, DB71dye, All optical switching.

Submitted at: Nov. 13, 2024
Accepted at: June 4, 2025

Citation

M. D. ZIDAN, A. ALLAHHAM, A. GHANEM, N. MOUSA, Thermal lens and all optical switching study of DB dye solution, Journal of Optoelectronics and Advanced Materials Vol. 27, Iss. 5-6, pp. 237-243 (2025)