Upconversion edge imaging using single-beam second harmonic generation
Near-infrared (NIR) imaging is essential for biological and materials sensing, yet high-performance NIR detectors are often cost-prohibitive and plagued by high dark current. Nonlinear frequency upconversion offers a compelling solution by shifting NIR signals into the visible spectrum, allowing the use of mature silic...
Peng Li, Hong Wang, Jianlin Zhao et al.
· AIP Publishing · 0 citations