English
femtophotography
From femto- + photography, from the ~100-femtosecond-long pulses of light used.
Formed from femto- + photography
French photographie
English photography
Today it means
noun 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.
Language periods are conventional ranges, not dates for this word.
Etymograph / femtophotography