Advances in ultraviolet-emitting vertical-cavity surface-emitting lasers
Paper i proceeding, 2021

We will give an overview of the progress in ultraviolet-emitting vertical-cavity surface-emitting lasers (VCSELs) and their potential applications in areas such as disinfection and medical therapy. This includes our demonstration of the shortest wavelength VCSEL, emitting at 310 nm under optical pumping, and a detailed analysis of its filamentary lasing characteristics. The UVB-emitting AlGaN-based VCSEL was realized by substrate removal using electrochemical etching, enabling the use of two high-reflectivity dielectric distributed Bragg reflectors. The potential of using this or alternative methods to push the emission to shorter wavelengths will be examined as well as concepts to realize electrically injected devices.

electrochemical etching

VCSEL

ultraviolet

Författare

Filip Hjort

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Johannes Enslin

Technische Universität Berlin

Munise Cobet

Technische Universität Berlin

Michael Alexander Bergmann

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Joachim Ciers

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Giulia Cardinali

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Tim Kolbe

Ferdinand-Braun-Institut fur Hochstfrequenztechnik

Felix Nippert

Technische Universität Berlin

Markus R. Wagner

Technische Universität Berlin

Johan Gustavsson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Tim Wernicke

Technische Universität Berlin

Michael Kneissl

Technische Universität Berlin

Åsa Haglund

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 11686 116860F

SPIE Photonics West Gallium nitride materials and devices XVI
San Francisco, USA,

Styrkeområden

Nanovetenskap och nanoteknik

Materialvetenskap

Ämneskategorier

Fysik

Annan materialteknik

Elektroteknik och elektronik

Nanoteknik

Infrastruktur

Chalmers materialanalyslaboratorium

Nanotekniklaboratoriet

DOI

10.1117/12.2576044

Mer information

Senast uppdaterat

2022-11-14