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The Third-Order Nonlinear Optical Susceptibility in Octupolar Molecule and its Dipolar Subunit

100%

Derkowska B., Sahraoui B., Nguyen Phu X., Andraud C.

Acta Physica Polonica A

2001

vol. 99

issue 1

155-160

The third-order nonlinear optical susceptibility χ^〈3〉 of octupolar molecule with three double bonds was measured using degenerate four wave mixing technique at 532 nm in tetrahydrofuran solution. For comparison, we also measured its analogous dipolar subunit. We found that the χ^〈3〉 value for octupolar molecule is about twice larger than its dipolar subunit.

Optical Properties of Zn_{1-x}Mg_{x}Se Epilayers Studied by Spectroscopy Methods

88%

Głowacki G., Gapiński A., Derkowska B., Bała W., Sahraoui B.

Acta Physica Polonica A

1998

vol. 94

issue 2

321-325

Linear optical properties of the Zn_{1-x}Mg_{x}Se (0 ≤ x ≤ 0.4) alloys have been studied using reflectance, spectroscopic ellipsometry and photoluminescence measurements. The refractive indices of Zn_{1-x}Mg_{x}Se epilayers were investigated as a function of Mg composition (0 ≤ x ≤ 0.4). The energies of band gap E_{g} and spin-orbit splitting E_{g}+Δ, have been determined. These energies are shifted gradually to higher values with increasing Mg content.

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2 Acta Physica Polonica A

1 2001

1 1998

2 Derkowska B.

2 Sahraoui B.

1 Andraud C.

1 Bała W.

1 Gapiński A.

1 Głowacki G.

1 Nguyen Phu X.

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The Third-Order Nonlinear Optical Susceptibility in Octupolar Molecule and its Dipolar Subunit

Optical Properties of Zn_{1-x}Mg_{x}Se Epilayers Studied by Spectroscopy Methods