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Magnetic Liquid Crystals for Molecular Spintronics

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Szczytko J., Budzowski P., Turski H., Witek B., Twardowski A., Glebowska A., Krówczyński A., Pociecha D., Szydlowska J., Górecka E.

Acta Physica Polonica A

2008

vol. 114

issue 5

1383-1386

The magnetic properties of Ni(II) and Cu(II) complexes were measured. In the case of Ni(II) samples strong enhancement of the magnetic susceptibility below 23 K was observed. The model of structural transition was proposed to explain this behavior.

Waveguide Design for Long Wavelength InGaN Based Laser Diodes

100%

Muzioł G., Turski H., Siekacz M., Sawicka M., Wolny P., Cheze C., Cywiński G., Perlin P., Skierbiszewski C.

Acta Physica Polonica A

2012

vol. 122

issue 6

1031-1033

One-dimensional optical waveguide calculations were performed to study the dependence of waveguide design on confinement factor (Γp) and optical losses (α_i) of nitride laser diodes for emission wavelength ranging from 405 nm to 520 nm. We found that the conventional waveguide design containing GaN waveguide and AlGaN cladding layers known from violet laser diode does not support sufficient confinement of the optical mode for long wavelength devices (λ > 450 nm). We proposed a new design consisting of a thick InGaN waveguide which enhances the confinement. We compared the theoretical predictions with laser diodes grown by plasma assisted molecular beam epitaxy.

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2 Acta Physica Polonica A

1 2012

1 2008

2 Turski H.

1 Budzowski P.

1 Cheze C.

1 Cywiński G.

1 Glebowska A.

1 Górecka E.

1 Krówczyński A.

1 Muzioł G.

1 Perlin P.

1 Pociecha D.

1 Sawicka M.

1 Siekacz M.

1 Skierbiszewski C.

1 Szczytko J.

1 Szydlowska J.

1 Twardowski A.

1 Witek B.

1 Wolny P.

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Magnetic Liquid Crystals for Molecular Spintronics

Waveguide Design for Long Wavelength InGaN Based Laser Diodes