CW Optical Limiting Study in Disperse Yellow Dye-Doped PMMA-MA Polymer Films.

IRA-International Journal of Applied Sciences, 5(3), 129-146. (ISSN 2455-4499).

18 Pages Posted: 1 Nov 2017

See all articles by P. S. Aithal

P. S. Aithal

Srinivas Institute of Management Studies

Shubhrajyotsna Aithal

Srinivas University

G. Bhat

Srinivas Institute of Management Studies

Date Written: December 31, 2016

Abstract

Molecules with high two-photon absorption (TPA) cross-section and the molecules which have reverse saturation absorption (RSA) cross section are of great interest today because of their application in three-dimensional optical data storage and photonic switches. During last forty years, several techniques have been developed to determine the two-photon absorption cross-sections and reverse saturation absorption cross-sections of the materials. This includes direct methods, such as nonlinear transmission and Z-scan methods and indirect methods, such as two-photon excited fluorescence and two-photon pump-probe transient absorption spectroscopy. During recent years, the organic dye-doped polymer films getting more attention due to their advantages to fabricate photonics devices. In this paper, we have studied the nonlinear optical properties like nonlinear absorption and nonlinear refraction of an azo dye Disperse yellow-7 (DY-7) doped in Polymethyl methacrylate-methacrylic acid (PMMA-MA) polymer matrix using open aperture and closed aperture Z-scan experimental methods using continuous wave (CW) laser. The optical limiting properties of these films are also studied in Type 1 and Type 2 configurations at different input power using continuous wave (CW) laser beams of 532 nm wavelength.

Keywords: Organic Nonlinear material, Dye-doped polymer films, Optical limiting, Open and closed aperture Z scan.

Suggested Citation

Aithal, P. S. and Aithal, Shubhrajyotsna and Bhat, G., CW Optical Limiting Study in Disperse Yellow Dye-Doped PMMA-MA Polymer Films. (December 31, 2016). IRA-International Journal of Applied Sciences, 5(3), 129-146. (ISSN 2455-4499).. Available at SSRN: https://ssrn.com/abstract=3062728

P. S. Aithal (Contact Author)

Srinivas Institute of Management Studies ( email )

Srinivas Campus
Pandeshwar
Mangalore, Mangalore 575001
India
9343348392 (Phone)

HOME PAGE: http://www.srinivasuniversity.ac.in

Shubhrajyotsna Aithal

Srinivas University ( email )

Srinivas Campus, Mangaladevi Road
Pandeshwar
Mangalore, 575001
India

G. Bhat

Srinivas Institute of Management Studies

Srinivas Campus, Mangaladevi Road
Pandeshwar
Mangalore, 575001
India

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