# femtophotography

> English word · Noun

## Definitions
1. A method of photography using sub-picosecond pulses of light (usually around 10⁻¹³ seconds, or 100 femtoseconds, long) to illuminate the subject of the photograph, allowing the propagation of the light pulse to be viewed directly.

## Etymology
From femto- + photography, from the ~100-femtosecond-long pulses of light used.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/femtophotography