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It is reported that researchers from the University of Salamanca in Spain have demonstrated a high-order harmonic spectroscopy scheme generated by the interaction between a structured driving beam and a crystal solid target. This work promotes the topological analysis of high-order harmonic fields as a spectroscopic tool to reveal nonlinearity in the coupling of light and target symmetry. The rele...
With the development of groundbreaking components for terahertz quantum cascade lasers, a huge leap has been made in the field of laser technology. A group of researchers have successfully designed a broadband single-chip external coupler with the potential to redefine the functionality of terahertz QCL.The new external coupler is fundamentally based on planar bimetallic waveguides. Its design is ...
Recently, Li Hao and You Lixing's team from the Chinese Academy of Sciences Shanghai Institute of Microsystems and Information Technology developed an ultrahigh speed, photon number resolvable optical quantum detector with a maximum count rate of 5GHz and a photon number resolution of 61 by using the sandwich structure superconducting nanowires and multi wires working in parallel. The related rese...
Photoacoustic technology provides a non-invasive method for detecting biological tissues, but its clinical application is limited, partly due to the large volume and high cost of laser sources. A compact PA sensing instrument powered by laser diodes for biomedical tissue diagnosis can provide clinical doctors with a practical and effective tool for evaluating breast diseases.By providing a cost-ef...
Recently, the team led by Academician Guo Guangcan from the University of Science and Technology of China has made significant progress in the research of quantum elliptical polarization imaging. The research group of Professor Shi Baosen and Associate Professor Zhou Zhiyuan combined high-quality polarization entangled light sources with classical polarization imaging technology to observe the bir...