Mr. Thomas R. O'Brien Profile

Thomas R. O'Brien

at Univ of Illinois

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Publications (3)

Proceedings Article | 24 February 2020 Presentation + Paper

Strain-controlled impurity-induced disordered apertures for high-power single-mode VCSELs

Patrick Su, Kevin Pikul, Fu-Chen Hsiao, Thomas O'Brien, John Dallesasse

Proceedings Volume 11300, 113000B (2020) https://doi.org/10.1117/12.2541945

KEYWORDS: Vertical cavity surface emitting lasers, Diffusion, Zinc, Electro optical modeling

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Proceedings Article | 25 February 2017 Presentation + Paper

Transverse mode selection in vertical-cavity surface-emitting lasers via deep impurity-induced disordering

Thomas O'Brien, Benjamin Kesler, John Dallesasse

Proceedings Volume 10122, 101220N (2017) https://doi.org/10.1117/12.2253396

KEYWORDS: Oxidation, Vertical cavity surface emitting lasers, Diffusion, Zinc, Spatial filters, Optical filters, Electronic filtering, Mirrors, Reflectivity, Absorption, Oxides, Etching, Resistance, Reflection, Gallium arsenide

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Proceedings Article | 25 February 2017 Paper

Transverse mode control in proton-implanted and oxide-confined VCSELs via patterned dielectric anti-phase filters

Benjamin Kesler, Thomas O'Brien, John Dallesasse

Proceedings Volume 10122, 101220L (2017) https://doi.org/10.1117/12.2253300

KEYWORDS: Vertical cavity surface emitting lasers, Dielectric filters, Optical filters, Mirrors, Reflectivity, Refractive index, Oxides, Gallium arsenide, Etching

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