Harvard engineers build chip that can twist and control light in real time

Harvard engineers build chip that can twist and control light in real time

Scientists at Harvard have built a miniature device that can twist and tune light in real time. By rotating two stacked photonic crystals and adjusting their spacing with a tiny mechanical system, they can control how light’s “handedness” behaves. This allows the chip to distinguish between left- and right-circular polarized light with remarkable precision. The advance could lead to smarter sensors, faster communications, and new quantum technol…

Harvard Engineers Create Chip That Can Twist Light In Real Time

Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have developed a compact photonic device capable of dynamically controlling the “handedness” of light, a property known as optical chirality. The system allows real time tuning of how light behaves as it passes through engineered nanostructures. The work, led by Fan Du in […] The post Harvard Engineers Create Chip That Can Twist Light In Real Time appeared first on…

Harvard's twistable light chip could give drug developers a new tool for sorting mirror-image molecules

Researchers at Harvard SEAS have built a MEMS-integrated photonic crystal device that can actively control the handedness of light passing through it. By stacking two silicon nitride photonic crystal slabs and precisely adjusting their twist angle and spacing with electrostatic actuators, the team achieved measured circular dichroism ranging from −0.85 to 0.64, with simulations showing… The post Harvard’s twistable light chip could give drug dev…