"Scientists Achieve Precision in Generating Visible Laser Light with Miniaturized Technique"

Scientists at the National Institute of Standards and Technology (NIST) and the Joint Quantum Institute (JQI) have developed a technique to convert near-infrared laser light into specific wavelengths of visible light with high accuracy and efficiency. By introducing tiny, periodic bumps along the surface of a microresonator, the researchers can select a specific output wavelength of visible light with an accuracy of 99.7%. This technique has potential applications in precision timekeeping and quantum information science, enabling the deployment of compact devices like photonic chips for quantum sensors and optical atomic clocks.