Publication
High-brightness polarized light-emitting diodes
Related publications (32)
Parametric Wavelength Conversion in Waveguiding Structures: Efficiency, Bandwidth and Polarization
Photonics integrated circuits are a promising solution for the growing demands of data transmission and future system-on-chip technologies. Within this context, nonlinear optical interactions offer unique opportunities for all-optical processing, sampling, ...
EPFL2024III-N blue-emitting epi-structures with high densities of dislocations: Fundamental mechanisms for efficiency improvement and applications
Since the dawn of humanity, human beings seeked to light their surroundings for their well-being, security and development. The efficiency of ancient lighting devices, e.g. oil lamps or candles, was in the order of 0.03-0.04% and jumped to 0.4-0.6% with th ...
EPFL2024Study of growth-induced point defects and their impact on InGaN-based optoelectronic devices
GaN exhibits a decomposition tendency for temperatures far below its melting point and common growth temperatures used in metal-organic vapour phase epitaxy (MOVPE).This characteristic is known to be a major obstacle for realising GaN bulk substrate. There ...
EPFL2024MEMS-based Tunable Metasurface for Reflective Display Applications
In an era where portable electronic devices are indispensable for a wide range of activities, the need for displays that provide both long-lasting battery life and excellent visibility in different lighting conditions is increasingly important. Emissive di ...
EPFL2024Shortwave Infrared-Sensitive, Narrowband Organic Upconversion Devices with a Gain
Sensing and imaging of light in the shortwave infrared (SWIR) range is increasingly used in various fields, including bio-imaging, remote sensing, and semiconductor process control. SWIR-sensitive organic photodetectors (OPDs) are promising because organic ...
EPFL2024Investigation of room-temperature single-photon emitters in GaN-based materials and GaN/AlN quantum dots
Over the past decade, quantum photonics platforms aiming at harnessing the fundamental properties of single particles, such as quantum superposition and quantum entanglement, have flourished. In this context, single-photon emitters capable of operating at ...
EPFL2024Single-Mode Laser in the Telecom Range by Deterministic Amplification of the Topological Interface Mode
Kirsten Emilie Moselund, Chang Won Lee
Photonic integrated circuits are paving the way for novel on-chip functionalities with diverse applications in communication, computing, and beyond. The integration of on-chip light sources, especially single-mode lasers, is crucial for advancing those pho ...
Washington2024Polarization-enhanced GaN Schottky barrier diodes: Ultra-thin InGaN for high breakdown voltage and low Ron
Elison de Nazareth Matioli, Zheng Hao, Alessandro Floriduz
In this work, we present a concept that leverages the strong piezoelectric polarization field in InGaN, which counteracts the external electric field at reverse bias. We show that despite the smaller InGaN band-gap and lower critical electric field, its st ...
2024A fully hybrid integrated erbium-based laser
Tobias Kippenberg, Rui Ning Wang, Xinru Ji, Zheru Qiu, Andrea Bancora, Yang Liu, Andrey Voloshin
Erbium-doped fibre lasers exhibit high coherence and low noise as required for fibre-optic sensing, gyroscopes, LiDAR and optical frequency metrology. Endowing erbium-based gain in photonic integrated circuits can provide a basis for miniaturizing low-nois ...
Nature Portfolio2024Nonlinear optical diode effect in a magnetic Weyl semimetal
Philip Johannes Walter Moll, Chunyu Guo, Hao Yang
Diode effects are of great interest for both fundamental physics and modern technologies. Electrical diode effects (nonreciprocal transport) have been observed in Weyl systems. Optical diode effects arising from the Weyl fermions have been theoretically co ...
Nature Portfolio2024