Articles tagged with Lasers
Scientists have successfully developed lead-free bismuth halide perovskites with broadband emission, overcoming toxicity and instability issues of traditional lead-based materials. The new material exhibits high efficiency and stability, paving the way for potential applications in artificial lighting and displays.
A new technique uses air lasing and coherent Raman spectroscopy to detect greenhouse gases with high sensitivity and multi-component measurement capabilities. The detection reaches a level of 0.03% and can distinguish between CO2 isotopes.
This special issue of Energy Material Advances highlights recent progress in synthesizing and tuning perovskite nanocrystals and other emerging nanocrystal materials. Research focuses on fundamental understanding of doping, synthesis, and spectroscopy, as well as applications in solar cells and light-emitting diodes.
Researchers at Osaka University have successfully accelerated energetic ions using graphene targets irradiated with ultra-intense lasers, overcoming previous limitations. The findings demonstrate the robustness of graphene in this application and pave the way for compact and efficient plasma-based accelerators.
Researchers have developed a method to achieve nature-inspired superwettability using femtosecond lasers. The technique enables the creation of hierarchical microstructures that promote water repellency on various materials, leading to applications in anti-liquids, self-cleaning, and other fields.
Researchers developed a GeSn-on-insulator (GeSnOI) technology for high-performance GeSn lasers, tackling interface defects, strain engineering, thermal management, and optical confinement. This leads to improved laser properties, including lower threshold, higher maximum lasing temperature, and stronger lasing intensity.
Researchers at North Carolina State University have developed a new synthesis process that increases the number of holes in p-type III-nitride semiconductor materials, leading to more efficient LEDs and lasers. This breakthrough could also help address the long-lasting problem called the 'green gap' in LED technology.
Researchers at Bar-Ilan University have demonstrated disorder-induced localization, allowing for the control of random laser emission through pump profile shaping. This breakthrough enables the creation of highly efficient and stable microlasers with unprecedented degrees of freedom.