1.
Phys Rev Lett
; 107(9): 093002, 2011 Aug 26.
Artículo
en Inglés
| MEDLINE
| ID: mdl-21929235
RESUMEN
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 HfF⺠and achieved a fractional absorption sensitivity of 3×10â»7 recorded over 1500 simultaneous channels spanning 150 cm⻹ around 800 nm with an absolute frequency accuracy of 30 MHz (0.001 cm⻹). A fully sampled spectrum consisting of interleaved measurements is acquired in 30 min.