The amorphous material used in this technology is composed of inorganic nanocrystals that are coated with organic ligands on the surface. When excited with infrared light, nonlinear optical processes cause the material to emit broadband white light. The result is a highly efficient, environmentally benign white-light emitter that can be used in a variety of applications.
One of the main benefits of this technology is that it is highly directional. It retains the superior beam divergence of the driving laser, which means that it is ideal for use in high-brilliance applications. This sets it apart from other light sources, such as incandescent bulbs, which emit light in all directions.
The visible part of the spectrum emitted by this technology resembles the color of a tungsten-halogen lamp at 2900 Kelvin. In simpler terms, this means that it emits a warm, comforting light that is similar to what we might get from a traditional light bulb. The difference is that it is far more efficient and environmentally friendly.
Another significant advantage of this technology is that it can be used to replace incandescent white-light emitters. This is important because incandescent bulbs are known to be incredibly inefficient, using up a lot of energy to produce light. By replacing them with more efficient technologies, we can reduce our energy consumption and help to combat climate change.
Overall, this breakthrough in lighting technology is significant because it offers a highly efficient, environmentally benign, and cost-effective way to produce white light. By using a continuous-wave laser diode, it is possible to create tailored light sources that can be used in a variety of applications. Its high directionality and warm light make it ideal for use in high-brilliance applications or in spaces where a soothing light is desirable. This technology could be the future of lighting, offering a more efficient and sustainable way to light our homes, offices, and public spaces.