Nonlinear optical characterization of graphite oxide thin film by open aperture Z-scan technique

Journal Article · Mon May 23 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4947901· OSTI ID:22608676

Sreeja, V. G.; Reshmi, R.; Devasia, Sebin; Cheruvalathu, Ajina ^[1]

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1. International School of Photonics, CUSAT, Cochin-22 (India)

In this paper we explore the structural characterization of graphite oxide powder prepared from graphite powder by oxidation via modified Hummers method. The nonlinear optical properties of the spin coated graphite oxide thin film is also explored by open aperture Z-Scan technique. Structural and physiochemical properties of the samples were investigated with the help of Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy (Raman).The results of FT-IR and Raman spectroscopy showed that the graphite is oxidized by strong oxidants and the oxygen atoms are introduced into the graphite layers forming C=C, O-H and –C-H groups. The synthesized sample has good crystalline nature with lesser defects. The nonlinear optical property of GO thin film was studied by open aperture Z-Scan technique using Q-switched Nd-Yag Laser at 532 nm. The Z-scan plot showed that the investigated GO thin film has saturable absorption behavior. The nonlinear absorption coefficient and saturation intensity were also estimated to explore its applications in Q switched mode locking laser systems.

• OSTI ID: 22608676
• Journal Information: AIP Conference Proceedings, Vol. 1731, Issue 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
APERTURES
DEFECTS
FOURIER TRANSFORM SPECTROMETERS
FOURIER TRANSFORMATION
GRAPHITE
INFRARED SPECTRA
LAYERS
NEODYMIUM LASERS
NONLINEAR OPTICS
OPTICAL PROPERTIES
OXIDATION
OXIDES
OXIDIZERS
OXYGEN
POWDERS
RAMAN SPECTROSCOPY
SATURATION
SPIN
THIN FILMS