Publications by authors named "Asa Haglund"

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Finite-size effects in photonic-crystal surface-emitting lasers: critical discussion of different approximations.
Lars Persson, Moritz Riedel, Åsa Haglund, Ulrich Theodor Schwarz

Opt Express· December 2025

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Improving thermal resistance in III-nitride blue and UV vertical-cavity surface-emitting lasers.
Lars Persson, Giulia Cardinali, Joachim Ciers, Åsa Haglund

Opt Express· August 2025

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Ultraviolet-B Resonant-Cavity Light-Emitting Diodes with Tunnel Junctions and Dielectric Mirrors.
Estrella Torres, Joachim Ciers, Michael A Bergmann, Jakob Höpfner, Sarina Graupeter, Åsa Haglund

ACS Photonics· August 2024

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Increased Light Extraction of Thin-Film Flip-Chip UVB LEDs by Surface Texturing.
Michael A Bergmann, Johannes Enslin, Martin Guttmann, Luca Sulmoni, Neysha Lobo Ploch, Åsa Haglund

ACS Photonics· February 2023

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A 310 nm Optically Pumped AlGaN Vertical-Cavity Surface-Emitting Laser.
Filip Hjort, Johannes Enslin, Munise Cobet, Michael A Bergmann, Johan Gustavsson, Åsa Haglund

ACS Photonics· January 2021

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Thermal lensing effects on lateral leakage in GaN-based vertical-cavity surface-emitting laser cavities.
Ehsan Hashemi, Jörgen Bengtsson, Johan Gustavsson, Marco Calciati, Michele Goano, Åsa Haglund

Opt Express· May 2017

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Analysis of structurally sensitive loss in GaN-based VCSEL cavities and its effect on modal discrimination.
Ehsan Hashemi, Jörgen Bengtsson, Johan Gustavsson, Martin Stattin, Gatien Cosendey, Asa Haglund

Opt Express· January 2014

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30 Gbps 4-PAM transmission over 200 m of MMF using an 850 nm VCSEL.
Krzysztof Szczerba, Petter Westbergh, Johnny Karout, Johan Gustavsson, Åsa Haglund

Opt Express· December 2011

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Assessment of VCSEL thermal rollover mechanisms from measurements and empirical modeling.
Prashant P Baveja, Benjamin Kögel, Petter Westbergh, Johan S Gustavsson, Åsa Haglund

Opt Express· August 2011

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Diffraction loss in long-wavelength buried tunnel junction VCSELs analyzed with a hybrid coupled-cavity transfer-matrix model.
Jörgen Bengtsson, Johan Gustavsson, Asa Haglund, Anders Larsson, Alexander Bachmann

Opt Express· December 2008

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Efficient and individually controllable mechanisms for mode and polarization selection in VCSELs, based on a common, localized, sub-wavelength surface grating.
Johan Gustavsson, Asa Haglund, Josip Vukusić, Jörgen Bengtsson, Piotr Jedrasik

Opt Express· August 2005

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