Quantum 2D mercury(II)-acetylide frameworks maintain high photonic performance in the near-IR telecom window

https://phys.org/news/2026-04-era-ultrafast-photonics-2d-mercury.html

"high degree of tunability that pure organic/ traditional 2D materials (like chemically unstable black phosphorus) often lack in near-IR... most either good letting light through or blocking it; overcome: more transparent as light intensity increases (for creating ultrashort laser pulses)/ more opaque at high intensities (for protecting sensitive sensors/ eyes from high-power laser damage)... rapid carrier recovery, enabling the generation of stable mode-locked and Q-switched lasers at 1560 nm, with pulse widths fs-regime"