意味(日本語)

フォトン、光量子 ◇cf.phonon(＝音子[音のエネルギー量子])

語源

• photo- : Gk.photos=light（光）

意味(英語)

• (noun) The quantum of electromagnetic energy, regarded as a discrete particle having zero mass, no electric charge, and an indefinitely long lifetime. See Table at subatomic particle.
• (noun) A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter.

例文

• The measurement of the twin photon is intentionally delayed (8 nanoseconds) after the measurement of the signal photon.

写真

語源

• photo- : Gk.photos=light（光）

写真写りのいい ◇genic(＝born)

語源

• photo- : Gk.photos=light（光）

写真の

語源

• photo- : Gk.photos=light（光）

感光性の

語源

• photo- : Gk.photos=light（光）