All-optical switching and limiting properties of a Ru (II) Schiff-base complex for nonlinear optical applications. (6th July 2017)

• Record Type: Journal Article
• Authors: Manjunatha, K B; Rajarao, Ravindra; Umesh, G; Ramachandra Bhat, B; Poornesh, P
• Is Part Of: Laser physics. Volume 27:Number 8(2017:Aug.)
• Publication Date: 2017-07-06
• Subjects: Z-scan -- DFWM -- all-optical switching -- Ru (II) complex -- NLO -- optical power limiting; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/aa7370
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: 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 χ (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.