Gaussian beam Z-scan analysis for nonlinear optical materials possessing simultaneous third- and fifth-order nonlinear refraction with saturable absorption: an application to semiconductor CdSe quantum dot-polymer nanocomposites

2012 ◽  
Author(s):  
Yasuo Tomita ◽  
Xiangming Liu ◽  
Yusuke Adachi
Keyword(s):  
Quantum Dot ◽  
Gaussian Beam ◽  
Polymer Nanocomposites ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Nonlinear Optical Materials ◽  
Saturable Absorption ◽  
Cdse Quantum Dot ◽  
Fifth Order

scholarly journals Closed-Aperture Z-Scan Analysis for Nonlinear Media with Saturable Absorption and Simultaneous Third- and Fifth-Order Nonlinear Refraction

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Xiangming Liu ◽  
Yasuo Tomita
Keyword(s):  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Polymer Nanocomposite ◽  
Approximate Expression ◽  
Nanocomposite Films ◽  
Saturable Absorption ◽  
Closed Aperture ◽  
Adomian’S Decomposition Method ◽  
Fifth Order

We present a theory of open- and closed-aperture Gaussian beam Z-scan for nonlinear optical materials with saturable absorption and high-order nonlinear refraction. We show that an approximate expression for a transmitted intensity through the nonlinear optical material is possible by means of the Adomian’s decomposition method and the thin film approximation. The theory is applied to semiconductor CdSe quantum dot-polymer nanocomposite films. It is shown that the theory well explains measured results of open- and closed-aperture transmittances in the Z-scan setup. It is also shown that the nanocomposite film possesses simultaneous third- and fifth-order nonlinear refraction as well as saturable absorption of a homogeneously broadened type.

scholarly journals Mesoscale Engineering of Nanocomposite Nonlinear Optical Materials

1997 ◽  
Vol 504 ◽  
Author(s):  
R. F. Haglund ◽  
C. N. Afonso ◽  
L. C. Feldman ◽  
F. Gonella ◽  
G. Luepke ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Ion Implantation ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Materials Science ◽  
Photonic Devices ◽  
Nonlinear Optical Materials ◽  
Third Order ◽  
Device Structures ◽  
Alloy Quantum Dots

ABSTRACTComplex nonlinear optical materials comprising elemental, compound or alloy quantum dots embedded in appropriate dielectric or semiconducting hosts may be suitable for deployment in photonic devices. Ion implantation, ion exchange followed by ion implantation, and pulsed laser deposition have all been used to synthesize these materials. However, the correlation between the parameters of energetic-beam synthesis and the nonlinear optical properties is still very rudimentary when one starts to ask what is happening at nanoscale dimensions. Systems integration of corplex nonlinear optical materials requires that the mesoscale materials science be well understood within the context of device structures. We discuss the effects of beam energy and energy density on quantum-dot size and spatial distribution, thermal conductivity, quantum-dot composition, crystallinity and defects — and, in turn, on the third-order optical susceptibility of the composite material. Examples from recent work in our laboratories are used to illustrate these effects.

Basic Studies of Nonlinear Optical Materials for Eye and Sensor Protection

2000 ◽  
Author(s):  
P. M. Tentzepis ◽  
P. Chen ◽  
I. V. Tomov ◽  
A. S. Dvornikov ◽  
D. A. Oulianov
Keyword(s):  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Optical Materials ◽  
Basic Studies

Turning diamondoids into nonlinear optical materials by alkali metal Substitution: A DFT investigation

2021 ◽  
Vol 142 ◽  
pp. 107231
Author(s):  
Palwasha Khan ◽  
Tariq Mahmood ◽  
Khurshid Ayub ◽  
Sobia Tabassum ◽  
Mazhar Amjad Gilani
Keyword(s):  
Alkali Metal ◽  
Optical Materials ◽  
Nonlinear Optical ◽  
Nonlinear Optical Materials ◽  
Metal Substitution
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