All-optical switching and limiting properties of a Ru (II) Schiff-base complex for nonlinear optical applications

作者：Manjunatha K B; Rajarao Ravindra; Umesh G; Bhat B Ramachandra; Poornesh P^*

来源：Laser Physics, 2017, 27(8): 085401.

DOI：10.1088/1555-6611/aa7370

• Z-scan
• DFWM
• all-optical switching
• Ru (II) complex
• NLO
• optical power limiting

A salen-based ruthenium (Ru) (II) complex was synthesized for possible use in nonlinear optical device applications. The Ru complex was doped in a polymer matrix to fabricate films using a low-cost spin-coating technique. The third-order nonlinear optical parameters of the complex were investigated by Z-scan and degenerate four-wave mixing techniques. The study reveals two-order enhancement of third-order optical susceptibility chi((3)) and exhibits superior limiting capability due to a reverse saturable absorption process. All-optical switching action for the films indicates that the sample can function as an optical inverter or a NOT gate. Hence, the Ru (II) Schiff-base complex materializes as a possible candidate for use in nonlinear optical devices.

• 出版日期2017-8