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Laser Optics & Photonics and Atomic & Plasma Science 2018
J u l y 1 6 - 1 7 , 2 0 1 8
P r a g u e , C z e c h R e p u b l i c
Page 112
American Journal of Computer Science and Information Technology
ISSN: 2349-3917
E u r o S c i C o n J o i n t E v e n t o n
Laser Optics & Photonics and
Atomic & Plasma Science
P
orous silicon has attracted great interests in recent years due to its unique opto-electronic properties. The nanoscale sponge-
like structure of porous silicon enhances the quantum confinement effect and resulting in faster carrier transport, enhanced
photo-luminescence efficiency and optical nonlinearities in comparison with conventional crystalline silicon. These improvements
lead to a wide range of potential applications in the field of optical sensing, energy conservation and photonic devices. Among all
the applications, the enhanced nonlinearities of porous silicon can be either an issue or an advantage. For a better understanding
of the nonlinear properties, our work explores the self-focusing and two photon absorption process in free-standing porous
silicon thin films by employing z-scan technique in short-infrared wavelength region. In addition, pump-probe technique has also
been used to investigate the influence of free carrier plasma effect on the third order nonlinearities.
rxw593@bham.ac.ukInfluence of free carrier plasma effect on third
order nonlinearities in porous silicon thin films
Rihan Wu and Andrey Kaplan
University of Birmingham, UK
Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-003