Year: 2011
Type: article
Abstract: We have demonstrated a new technique that provides massively parallel comb spectroscopy sensitive specifically to ions through the combination of cavity-enhanced direct frequency comb spectroscopy with velocity-modulation spectroscopy. Using this novel system, we have measured electronic transitions of ${\mathrm{HfF}}^{+}$ and achieved a fractional absorption sensitivity of $3\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}7}$ recorded over 1500 simultaneous channels spanning $150\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}1}$ around 800 nm with an absolute frequency accuracy of 30 MHz ($0.001\text{ }\text{ }{\mathrm{cm}}^{\ensuremath{-}1}$). A fully sampled spectrum consisting of interleaved measurements is acquired in 30 min.
Source: Physical Review Letters
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2126842433