Light-in-flight (LIF) imaging is the measurement and reconstruction of light’s path as it moves and interacts with objects. We are developing methods to track light as it propagates in the air in four dimensions — x, y, z, and time. In our recent work, we show how special cameras that can detect single photons can observe relativistic effects in light-in-flight measurements.

Read more about this work in our Optics Express paper: Intensity-corrected 4D light-in-flight imaging.