Seeing the invisible: The limits of two-photon vision

Near-infrared light is invisible to humans. And yet, under the right conditions, the human eye can perceive it. Researchers ...

Optical meta‑conveyors enable programmable nanomanipulation along arbitrary open paths

The task of gently transporting a microscopic particle from one point to another along a winding path, and then bringing it back using nothing more than a single, compact chip is a challenge we set ...
IEEE

Correcting Optical Aberration via Depth-Aware Point Spread Functions

Abstract: Optical aberration is a ubiquitous degeneration in realistic lens-based imaging systems. Optical aberrations are caused by the differences in the optical path length when light travels ...
IEEE

An Ocean Optical Parameters Inversion Algorithm Based on Pulse Broadening Match With Varying System Impulse Response Functions for ICESat-2

Abstract: The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) carries the new generation photon-counting lidar payload, the Advanced Topographic Laser Altimeter System (ATLAS). After after-pulse ...