Nonlinear optical properties of synthesized porous nanostructures PMMA via template-directed methods
Other Title(s)
الخواص البصرية اللاخطية للبولي ميثل ميثاكريلايت النانوي المسامي المصنع بواسطة طرق القالب المباشرة
Joint Authors
al-Bawi, Zaynab Fadil Mahdi
Faris, Rawa Ahmad
al-Tayfi, Dawud Ubayd
Source
Issue
Vol. 13, Issue 28 (31 Dec. 2015), pp.10-18, 9 p.
Publisher
University of Baghdad College of Science
Publication Date
2015-12-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Abstract EN
Colloidal crystals (opals) made of close-packed polymethylmethacrylate (PMMA) were fabricated and grown by Template-Directed methods to obtain porous materials with wellordered periodicity and interconnected pore systems to manufacture photonic crystals.
Opals were made from aqueous suspensions of monodisperse PMMA spheres with diameters between 280 and 415 nm.
SEM confirmed the PMMA spheres crystallized uniformly in a face-centered cubic (FCC) array.
Optical properties of synthesized pores PMMA were characterized by UV–Visible spectroscopy.
It shows that the colloidal crystals possess pseudo photonic band gaps in the visible region.
A combination of Bragg’s law of diffraction and Snell’s law of refraction were used to calculate the sphere diameter.
Finally, colloidal crystals were subjected to Z-scan experiment under pulsed Q-switched Nd:YAG laser illumination to characterize it for third order nonlinear optical properties.
Z-scan results show the change in transmittance of a beam, and the nonlinear refractive index is n2 = 9.82787 x 10-12 (cm2 /GW), while the nonlinear absorption coefficient β= 0.04673908 (cm/GW).
These results were attributed to enhance the self-focusing arising from Kerr effect and the twophoton absorption
American Psychological Association (APA)
al-Bawi, Zaynab Fadil Mahdi& Faris, Rawa Ahmad& al-Tayfi, Dawud Ubayd. 2015. Nonlinear optical properties of synthesized porous nanostructures PMMA via template-directed methods. Iraqi Journal of Physics،Vol. 13, no. 28, pp.10-18.
https://search.emarefa.net/detail/BIM-732350
Modern Language Association (MLA)
al-Bawi, Zaynab Fadil Mahdi…[et al.]. Nonlinear optical properties of synthesized porous nanostructures PMMA via template-directed methods. Iraqi Journal of Physics Vol. 13, no. 28 (2015), pp.10-18.
https://search.emarefa.net/detail/BIM-732350
American Medical Association (AMA)
al-Bawi, Zaynab Fadil Mahdi& Faris, Rawa Ahmad& al-Tayfi, Dawud Ubayd. Nonlinear optical properties of synthesized porous nanostructures PMMA via template-directed methods. Iraqi Journal of Physics. 2015. Vol. 13, no. 28, pp.10-18.
https://search.emarefa.net/detail/BIM-732350
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 17-18
Record ID
BIM-732350