Quantum-based measurement methods and sensors exploit special effects of quantum physics, such as quantum entanglement, and will allow research to develop applications with unprecedented high sensitivity and accuracy in the future.
Quantum imaging uses non-classical photon states to make imaging with previously unused wavelengths possible, e.g. for applications in biology, medical or metrology. In this field, Fraunhofer ILT is developing, among other things, parametric photon sources for quantum imaging applications in the mid-infrared (MIR), where many substances have characteristic absorption lines. With entangled photons, interaction and detection wavelengths can be separated and highly sensitive silicon detectors used to evaluate image information.