Former Xinjiang government engineer Nureli Abliz, who saw firsthand how surveillance technology flagged thousands of people in China for detention, even when they had committed no crime, is ...

The invention of tiny devices capable of precisely controlling the direction and behavior of light is essential to the ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all without mechanical motion. The design overcomes a long-standing efficiency-versus ...

PHOTO ESSAY: Invisible Infrared Surveillance Technology and Those Caught in Its Digital Cage When you unlock a phone, step into view of a security camera or drive past a license plate reader at night, ...

When you unlock a phone, step into view of a security camera or drive past a license plate reader at night, beams of infrared light – invisible to the naked eye — shine onto the unique contours of ...