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J. Tulkki
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Journal Articles

Vibrational mean free paths and thermal conductivity of amorphous silicon from non-equilibrium molecular dynamics simulations

Open Access
K. Sääskilahti, J. Oksanen, J. Tulkki, A. J. H. McGaughey, S. Volz
Journal: AIP Advances
AIP Advances 6, 121904 (2016)
https://doi.org/10.1063/1.4968617
Published: December 2016
View articletitled, Vibrational mean free paths and thermal conductivity of amorphous silicon from non-equilibrium molecular dynamics simulations
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Journal Articles

Diffusion injected multi-quantum well light-emitting diode structure

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L. Riuttanen, P. Kivisaari, H. Nykänen, O. Svensk, S. Suihkonen, J. Oksanen, J. Tulkki, M. Sopanen
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 081102 (2014)
https://doi.org/10.1063/1.4866343
Published: February 2014
View articletitled, Diffusion injected multi-quantum well light-emitting diode structure
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Journal Articles

Enhanced light extraction from InGaN/GaN quantum wells with silver gratings

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E. Homeyer, P. Mattila, J. Oksanen, T. Sadi, H. Nykänen, S. Suihkonen, C. Symonds, J. Tulkki, F. Tuomisto, M. Sopanen, J. Bellessa
Journal: Applied Physics Letters
Appl. Phys. Lett. 102, 081110 (2013)
https://doi.org/10.1063/1.4794066
Published: February 2013
View articletitled, Enhanced light extraction from InGaN/GaN quantum wells with silver gratings
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Journal Articles

Phonon interference and anharmonicity effects in nanoconstrictions

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K. Sääskilahti, J. Oksanen, R. P. Linna, J. Tulkki
Journal: AIP Conference Proceedings
AIP Conf. Proc. 1506, 15–21 (2012)
https://doi.org/10.1063/1.4772518
Published: December 2012
View articletitled, Phonon interference and anharmonicity effects in nanoconstrictions
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Journal Articles

Strain distribution and carrier confinement in Si/SiO 2 quantum point contacts and wires

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F. Boxberg, R. Virkkala, J. Tulkki
Journal: Journal of Applied Physics
J. Appl. Phys. 88, 600–602 (2000)
https://doi.org/10.1063/1.373704
Published: July 2000
View articletitled, Strain distribution and carrier confinement in Si/SiO 2 quantum point contacts and wires
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Journal Articles

Comparison of band-filling and gain models for multiple-quantum-well lasers

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A. Heinämäki, J. Tulkki
Journal: Journal of Applied Physics
J. Appl. Phys. 81, 3268–3275 (1997)
https://doi.org/10.1063/1.364160
Published: April 1997
View articletitled, Comparison of band-filling and gain models for multiple-quantum-well lasers
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Journal Articles

Enhanced optical properties of in situ passivated near‐surface AlxGa1−xAs/GaAs quantum wells

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H. Lipsanen, M. Sopanen, M. Taskinen, J. Tulkki, J. Ahopelto
Journal: Applied Physics Letters
Appl. Phys. Lett. 68, 2216–2218 (1996)
https://doi.org/10.1063/1.115863
Published: April 1996
View articletitled, Enhanced optical properties of in situ passivated near‐surface AlxGa1−xAs/GaAs quantum wells
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