Researchers from Ben-Gurion University of the Negev, a renowned institution in Israel, have made a groundbreaking advancement with the development of an ultra-thin, low-cost infrared sensor. This innovation has the potential to transform night vision technology, making it possible to create the world's thinnest night vision glasses and integrate it into smartphones, autonomous vehicles, and more.
The device, developed by Professor Gabby Sarusi from the Institute of Nanoscience and Technology, functions like a stamp. It captures infrared light at 1500 nm on one side and converts it into visible light that the human eye can see on the other. The core component is a film just 0.6 micrometers thick, composed of a nano-material layer, nano-pillars, and an ultra-thin metal foil. This remarkable material enables the conversion of invisible infrared light into visible images, opening up new possibilities for imaging applications.
Sarusi explained that the film can be easily integrated into regular glasses, telescopes, or even standard camera sensors, turning them into infrared-enabled devices. "This allows us to 'see' what’s otherwise invisible," he said. The technology relies heavily on nanotechnology and physical principles, with only a small battery needed as an electronic component, making it energy-efficient and lightweight.
One of the most exciting applications is in autonomous vehicles. Current vision systems struggle in low-light conditions, rain, fog, or snow, but this new sensor can enhance visibility in such scenarios. Additionally, it’s not affected by glare from strong sunlight, which often disrupts conventional sensors. This makes it ideal for improving the safety and reliability of self-driving cars.
Cost is another major advantage. Traditional infrared sensors can cost around $3,000, while current visible light sensors used in autonomous vehicles are much cheaper—only $1 to $2. However, with this new nano-film technology, the cost drops dramatically to about $7 to $8. "This will significantly reduce the overall cost of autonomous vehicles," Sarusi noted.
He also emphasized that this breakthrough could revolutionize the automotive industry, as sensors are the backbone of autonomous driving. By enabling clearer and longer-range vision, the technology could enhance both camera-based systems and LiDAR sensors.
Beyond vehicles, the technology holds great promise for smartphones. Future mobile devices could incorporate infrared vision for enhanced photography, security, and augmented reality features.
Ben-Gurion University has already begun licensing the technology and has launched a startup to further develop and commercialize the product. According to Sarusi, the technology may be available in the market within two to three years. With its affordability, versatility, and potential for widespread use, this innovation could mark a significant leap forward in imaging and sensing technologies.
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