SPIFFI enables single-shot super-resolution and multidimensional imaging.

SPIFFI achieves instant super-resolution and six-dimensional imaging from a single exposure, enabling real-time biological observations beyond the diffraction limit.

• Why it matters: Current wide-field super-resolution techniques often sacrifice temporal resolution, limiting the ability to capture rapid, transient biological events in living systems.
• What they did: The authors developed SPIFFI, a multichannel polarimetric method that exploits polarization-dependent spatial fluctuations and smaller point spread functions to enhance resolution instantly, demonstrated on fixed and live cells.
• The result: SPIFFI enables high-throughput, multidimensional imaging of subcellular dynamics in real time, facilitating volumetric live-cell super-resolution imaging and integration with existing fluctuation-based methods.