A revolutionary imaging chip, inspired by Superman's X-ray vision, could soon be incorporated into smartphones, allowing users to see through walls or packaging. Researchers from the University of Texas at Dallas and Seoul National University have developed this technology, which emits 300 GHz signals that are harmless to humans and respect privacy.
The scientists who designed this chip are currently working on miniaturizing the technology to fit into smartphones. This project, supported by Texas Instruments and Samsung's global research program, could revolutionize the use of mobile devices.
Unlike X-rays, this chip uses 300 GHz signals, which are harmless. It allows the detection of objects at short range, around 1 inch (2 to 3 centimeters). This limitation was deliberately chosen to ensure privacy and prevent misuse. The researchers plan to extend this distance to 5 inches (12.5 centimeters) to improve the detection of small objects. This technology is similar to that used in airport passenger screening gates which utilize microwaves.
One of the major challenges was to make the technology small enough for mobile devices while improving image quality. The chip, which requires no lenses or optics, detects signals reflected by objects to create images. The chip's pixels, measuring 0.02 inches (0.5 mm), are capable of capturing fine details. Ultimately, this innovation could have medical applications, particularly for non-invasive examinations.
The next step is to further reduce the device's size to fit onto a small chip that can be integrated into a smartphone. This would open numerous applications for both the general public and professionals, such as scanning suspicious packages or inspecting pipes for cracks. Doctors, particularly emergency room physicians, could also use this technology to perform preliminary examinations in the field.
In their 2022 publication, the researchers also mentioned integrating this system into vehicles to improve navigation in low-visibility conditions. However, privacy concerns have led the team to focus on short-range applications, thus limiting the risks of malicious use.
Author of the article: Cédric DEPOND