Direct intense laser detection
Leveraging exciton-enhanced high-order multiphoton absorption to overcome saturation limits of conventional materials, enabling direct broadband detection and high-precision imaging of high-intensity pulsed lasers.
Xu, Haojie · Zhu, Pengfei · Xu, Jinlong · Huang, Yantang · Sun, Zhihua · Li, Fushan · Zhu, Shining · Zhou, Lin L.
Science Advances 2025
Simultaneously achieves strong four-photon and five-photon absorption nonlinearities