Abstract
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 language | English |
|---|---|
| Pages (from-to) | 327-329 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 10 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Jan 1985 |
| Externally published | Yes |