Article ID Journal Published Year Pages File Type
5007474 Optics & Laser Technology 2017 5 Pages PDF
Abstract
The nonlinear optical absorption, refraction and switching behavior of Zinc phthalocyanine (Zn(II)Pc) thin films are reported. Z-scan technique is employed to study the nonlinear absorption and nonlinear refraction behavior of the thin films with nanosecond pulses of Nd:YAG laser at ∼532 nm. Optical switching behavior of the dye is studied using pump-probe technique with ∼5 ns pulses of Nd:YAG at ∼532 nm as the pump beam and ∼632.8 nm cw He-Ne laser as the probe beam. The switching behavior of the dye is attributed to excited state absorption (ESA) of the probe beam by the dye molecules. Probe beam modulation with increasing pump intensity is also investigated.
Related Topics
Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
Authors
, , , , ,