Growth, linear and nonlinear optical properties of a DSSS crystal

The morphology of the DSSS crystal has been modified from bulk parallelepiped to an elongated cuboid shape by changing the supersaturation from high to low. The growth dynamics, defect mechanisms, linear and nonlinear properties are discussed in detail.

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Linear and Nonlinear Optical Properties of Metal Nanoclustersilica Composites Formed by Implantation of Sb in High Purity Silica

MRS Proceedings ◽

10.1557/proc-438-429 ◽

1996 ◽

Vol 438 ◽

Cited By ~ 1

Author(s):

R. H. Magruder ◽

R. A. Weeks ◽

T. S. Anderson ◽

R. A. Zuhr

Keyword(s):

Optical Properties ◽

Nonlinear Optical ◽

Volume Fraction ◽

Nonlinear Optical Properties ◽

Index Of Refraction ◽

Metal Colloids ◽

Linear Absorption ◽

Nonlinear Properties ◽

Nonlinear Index ◽

Linear And Nonlinear

AbstractThe linear and nonlinear optical properties of a series of Sb nanometer dimension metal colloids in silica were measured. The colloids were fabricated by the implantation of Sb in silica with nominal doses of 3, 6 and 9x1016 ions/cm2 at 320 keV. The linear optical response was measured from 200 to 900 nm. The nonlinear optical properties were measured using the z-scan technique at wavelengths of 596 and 617 nm. The results are compared to linear and nonlinear properties of a sample implanted with 6x1016 Ag ions/cm 2. Both absorption and the nonlinear index of refraction increase with increasing volume fraction for the Sb implanted samples. The lower linear absorption and comparable nonlinear index of refraction for the Sb colloid-glass composites may be better for devices than composites using metal colloids that have a surface plasmon resonance.

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Arylthienyl-vinyl-benzothiazoles as Efficient Second Harmonic Generators (SHG) for Nonlinear Optics

Proceedings ◽

10.3390/ecsoc-22-05702 ◽

2018 ◽

Vol 9 (1) ◽

pp. 4 ◽

Cited By ~ 1

Author(s):

Rosa M. F. Batista ◽

Susana P. G. Costa ◽

Michael Belsley ◽

M. Manuela M. Raposo

Keyword(s):

Optical Properties ◽

Nonlinear Optics ◽

Nonlinear Optical ◽

Rayleigh Scattering ◽

Second Harmonic ◽

Decomposition Temperature ◽

Nonlinear Optical Properties ◽

Nonlinear Properties ◽

Harmonic Generator ◽

Linear And Nonlinear

New push-pull second harmonic generation (SHG) chromophores 2 were synthesized in order to study their linear and nonlinear optical properties. The donor-acceptor π-conjugated systems 2 were prepared in good to excellent yields by a simple aldol-type condensation of the precursor aldehydes 1 with 6-nitro-2-methyl-1,3-benzothiazole in the presence of NaOH. Hyper-Rayleigh scattering in dioxane solutions was used to evaluate their second-order nonlinear optical properties. The experimental results showed that the optical (linear and nonlinear) properties are influenced by the electron-donor strength of the groups of the π-conjugated bridge. The vinyl-benzothiazole derivative 2b, with methoxyl as the donor group, exhibited the largest first hyperpolarizability β (1660 × 10−30 esu, 40 times greater than the standard reference pNA molecule) and the highest decomposition temperature (Td = 360 °C). The good balance between nonlinearity and thermal stability makes this compound a promising candidate as second harmonic generator (SHG) for nonlinear optics.

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