--- title: "New Laser Can Identify People From a Distance By Their Heartbeat" description: "The U.S. Special Forces are developing a device that can detect a person's unique heartbeat using an IR laser from a distance." date: "2019-06-27" modified: "2019-06-27" authors: - name: "Victor Tangermann" job_title: "Senior Editor" link: "https://futurism.com/authors/victor" url: "https://futurism.com/the-byte/laser-identify-distance-heartbeat" categories: - "Science & Energy" tags: - "cardiac" - "heart beat" - "heartbeat" - "laser" - "the digest" --- # New Laser Can Identify People From a Distance By Their Heartbeat ![The U.S. Special Forces are developing a device that can detect a person's unique cardiac signature using an IR laser from a distance.]() *\Image: Kevin Doncaster/Victor Tangermann\* ## Jetson Laser The U.S. Special Forces are developing a device that can detect a person's unique cardiac signature using an IR laser from a distance. The Pentagon's special project nicknamed "Jetson" can work from a 200 meter distance — improved versions could enable even longer distances. Steward Remaly, of the Pentagon’s Combatting Terrorism Technical Support Office who worked on the project, claims that the device is accurate over 95 percent of the time [according to *MIT Technology Review*]() — that is, if the conditions are right. Infrared — like the heart rate sensor on an Apple Watch — can pick up on the changes in how much light is reflected in a blood stream and can infer a person's pulse from that. Jetson, however, analyzes tiny vibrations on the surface of the skin to detect a heartbeat — and that works just as well through a layer of clothing. ## Better Biometric That means it's useful in situations when a biometric facial recognition system fails to get a good view of a target's face. "Compared with face, cardiac biometrics are more stable and can reach more than 98% accuracy, Remaly told *MIT Technology Review*. While the technology is impressive, the device takes about 30 seconds to get a good read. That means a target needs to be either sitting or standing still. The U.S. armed forces would also need to start creating a cardiac signature database from scratch for the device to be of any use. **READ MORE:** [The Pentagon has a laser that can identify people from a distance—by their heartbeat]() \[*MIT Technology Review*\] **More on lasers:** *[The World's Strongest Laser is About to Simulate a Supernova]()* ## Author I've been at Futurism since 2017, where my role has evolved to encompass design, writing, and increasingly editing. I've always been fascinated by space exploration and advanced transportation, which I've leaned into by interviewing luminaries in those fields while closely following the dimensions of policy and regulation that allow next-generation projects to succeed -- or, sometimes, to fail. I'm also keenly interested in the effects of generative AI on society, policies, and democratic institutions, as well as clean energy, physics and biology, and the vagaries of tech leadership. My work for Futurism has been cited by publications including Ars Technica, Gizmodo, PC Magazine, Jalopnik, Fox News, and the New York Post. I spent my childhood living in locations including Manila, the Philippines, and Geneva, Switzerland, attended McGill University, and now live in Toronto, Canada. Before Futurism I worked at AskMen and a small photography studio. In my free time, I'm an avid gardener, foodie, and craft beer lover, as well as a maker of artisanal hot pepper sauces. I have a magnificent dog named Freida. ### Author social links [Bluesky]()