Phys.org June 6, 2022 Quantum states of light have been shown to enhance precision in absorption estimation over classical strategies. However, most quantum sensing schemes rely on special entangled or squeezed states of light or matter that are hard to generate and detect. Researchers in the UK have shown it is possible to perform high precision measurements of important physical properties without the need for sophisticated quantum states of light and detection schemes. The key to this breakthrough is the use of ring resonators that guide light in a loop and maximize its interaction with the sample under study. Importantly, […]
Tag Archives: Photonic sensors
Photonic radiation sensors survive huge doses undamaged
Science Daily November 27, 2018 High levels of radiation would modify the optical properties of silicon in the devices, leading to incorrect readings. NIST test results indicate the sensors could be customized for measuring radiation dose in both industrial applications and clinical radiotherapy. Researchers at NIST examined the impact of cobalt-60 γ-ray radiation up to 1 megagray (MGy) absorbed dose on silicon photonic devices. They did not find any systematic impact of radiation on passivated devices, indicating the durability of passivated silicon devices under harsh conditions…read more. Open Access TECHNICAL ARTICLE