Development of full-color III-nitride laser diodes

在过去的几十年里，基于iii -氮化物的照明技术取得了重大进展。由于优异而独特的性能，包括直接可调的能量带隙（从短紫外到长红外波长），iii -氮化物（GaN及其合金）是当今基于大规模发光二极管（LED）的固态照明技术的首选材料。尽管取得了巨大的成功，但仍有许多关键的挑战需要克服。例如，iii -氮化物led在绿色和红色光谱波长仍然表现出低效率；即使是蓝色led在高电流下也会显示效率下降。这些挑战基本上可以通过等离子体辅助分子束外延生长这些材料的无缺陷来解决。此外，与当前LED技术相关的效率相关问题可以通过电注入激光二极管（ld）来解决。在这次国际合作中，Muziol博士将种植设备质量的iii -氮化物材料，Sadaf博士将制造这些设备。该联盟的国际催化剂资助将是开发紧凑、高效、全彩激光二极管的重要的第一步。激光二极管将在包括固态照明、AR/VR、显示、激光雷达和光子集成电路在内的一系列基本应用中发挥重要作用。全彩色激光器的发展将使加拿大成为世界光子学领域的领导者。hqp将亲身体验最先进的发展和制造设施。因此，参与该项目的HQPs将受益匪浅，并将成为加拿大学术界和光子学就业市场的资产。

Significant progress has been made in III-nitride-based lighting technologies in the past decades. Owing to excellent and unique properties, including direct, tunable energy bandgaps (from short UV to longer infrared wavelengths), III-nitride (GaN and its alloys) is the material of choice for today's massive light-emitting diode (LED) based solid-state lighting technology. Despite this huge success, there are still many critical challenges to overcome. For example, III-nitride LEDs still exhibit low efficiency in the green and red spectral wavelengths; even blue LEDs show an efficiency drop when operated at a high current. These challenges can be by and large solved by growing these materials defects free using plasma-assisted molecular beam epitaxy. Furthermore, the efficiency-related problems associated with the current LED technology can be addressed byelectrically injected laser diodes (LDs). In this international collaboration, Dr. Muziol will grow device quality III-nitrides materials and Dr Sadaf will fabricate the devices.This Alliance international catalyst grant will be an essential first step to developing compact, high efficiency, full-colour laser diodes. The laser diodes will be valuable for a range of essential applications, including solid-state lighting, AR/VR, display, LIDAR, and photonic integrated circuits. The development of full-color lasers will establish Canada as a leading player in the worldwide photonics sector. The HQPs will get hands-on exposure to state-of-the-art growth and fabrication facilities. Therefore, the HQPs involved in this project will be highly benefitted and will be assets to Canadian academia and the photonics job market.