AlGaN photonics: recent advances in materials and ultraviolet devices

D Li, K Jiang, X Sun, C Guo - Advances in Optics and Photonics, 2018 - opg.optica.org
AlGaN-based materials own direct transition energy bands and wide bandgap and thus can
be used in high-efficiency ultraviolet (UV) emitters and detectors. Over the past two decades …

Towards Efficient Electrically-Driven Deep UVC Lasing: Challenges and Opportunities

S Nikishin, A Bernussi, S Karpov - Nanomaterials, 2022 - mdpi.com
The major issues confronting the performance of deep-UV (DUV) laser diodes (LDs) are
reviewed along with the different approaches aimed at performance improvement. The …

[HTML][HTML] Low-threshold stimulated emission at 249 nm and 256 nm from AlGaN-based multiple-quantum-well lasers grown on sapphire substrates

XH Li, T Detchprohm, TT Kao, MM Satter… - Applied Physics …, 2014 - pubs.aip.org
Optically pumped deep-ultraviolet (DUV) lasing with low threshold was demonstrated from
AlGaN-based multiple-quantum-well (MQW) heterostructures grown on sapphire substrates …

6 kW/cm2 UVC laser threshold in optically pumped lasers achieved by controlling point defect formation

R Kirste, Q Guo, JH Dycus, A Franke… - Applied Physics …, 2018 - iopscience.iop.org
Optically pumped lasing from AlGaN/AlN multiple quantum wells grown on single-crystalline
AlN substrates with lasing thresholds as low as 6 kW/cm 2 is demonstrated via the reduction …

Demonstration of transverse-magnetic deep-ultraviolet stimulated emission from AlGaN multiple-quantum-well lasers grown on a sapphire substrate

XH Li, TT Kao, MM Satter, YO Wei, S Wang… - Applied Physics …, 2015 - pubs.aip.org
We demonstrate transverse-magnetic (TM) dominant deep-ultraviolet (DUV) stimulated
emission from photo-pumped AlGaN multiple-quantum-well lasers grown …

Design of AlGaN-based quantum structures for low threshold UVC lasers

Q Guo, R Kirste, S Mita, J Tweedie, P Reddy… - Journal of Applied …, 2019 - pubs.aip.org
The influence of the polarization field on the emission properties of the AlGaN-based
quantum structures grown on AlN substrates was investigated as a function of well width …

Onset of surface stimulated emission at 260 nm from AlGaN multiple quantum wells

X Li, H Xie, FA Ponce, JH Ryou, T Detchprohm… - Applied Physics …, 2015 - pubs.aip.org
We demonstrated onset of deep-ultraviolet (DUV) surface stimulated emission (SE) from c-
plane AlGaN multiple-quantum well (MQW) heterostructures grown on a sapphire substrate …

Deep-UV hexagonal boron nitride (hBN)/BAlN distributed Bragg reflectors fabricated by RF-sputtering

Q Li, Q Zhang, Y Bai, H Zhang, P Hu, Y Li… - Optical Materials …, 2020 - opg.optica.org
The hexagonal boron nitride (hBN) and BAlN films were prepared by RF-sputtering, which
were used as the low and high refractive index layers. A series of hBN/BAlN distributed …

Recent progress on aluminum gallium nitride deep ultraviolet lasers by molecular beam epitaxy

Q Zhang, X Yin, S Zhao - physica status solidi (RRL)–Rapid …, 2021 - Wiley Online Library
Over the past decades, the aluminum gallium nitride (AlGaN) alloy system has received
wide interest for the development of semiconductor deep ultraviolet (DUV) lasers due to its …

Deep-UV optical gain in AlGaN-based graded-index separate confinement heterostructure

EF Pecora, H Sun, L Dal Negro… - Optical Materials …, 2015 - opg.optica.org
We propose AlGaN-based GRaded-INdex Separate Confinement Heterostructure as a
candidate for electrically pumped deep-UV semiconductor laser. Strong compositional …