EurekAlert October 1, 2020
To improve thermal imaging an international team of researchers (USA – Harvard University, industry, MIT, South Korea, Spain, Japan) has developed a microwave bolometer that it is capable of detecting a single microwave photon. The graphene bolometer sensor detects electromagnetic radiation by measuring the temperature rise as the photons are absorbed into the sensor. Graphene is incorporated in the microwave antenna. A key innovation in this advancement is to measure the temperature rise by superconducting Josephson junction while maintaining a high microwave radiation coupling into the graphene through an antenna. The research has found a new pathway to improve the performance of systems detecting electromagnetic signal such as radar, night vision, LIDAR, and communication. It could also enable new applications such as quantum information science, thermal imaging as well as the search of dark matter…read more. TECHNICAL ARTICLE
Army-funded research develop a graphene bolometer sensor with 100,000x higher sensitivity than currently available commercial sensors…