noun
Scientific term for the study of the interaction between matter and electromagnetic radiation. Related to 分光学 (spectroscopy as a field of study).
See also: 分光学 (ぶんこうがく)
分光法を用いて物質の成分を分析する。
Analyze the composition of a substance using spectroscopy.
分光学 refers to spectroscopy as an academic field or discipline, while 分光法 emphasizes the method or technique.
Compound of 分光 (spectral, light-dispersing) and 法 (method). The exact historical derivation is uncertain; the spelling is conventionally associated with the scientific meaning.