• A. J. Langley
  • R. A. Beaman
  • J. Baran
  • A. N. Davies
  • W. Jeremy Jones

Concentration modulation is demonstrated to be a technique capable of markedly extending sensitivity limits in absorption spectroscopy. The gain generated relates in such a manner to sample transmittance that for the first reported time direct spectroscopic concentration measurements become possible. When concentration modulation is used with picosecond lasers, state lifetimes can be determined to a limit of ~20 psec.

Original languageEnglish
Pages (from-to)327-329
Number of pages3
JournalOptics Letters
Issue number7
Publication statusPublished - 1 Jan 1985
Externally publishedYes

ID: 4119355