TY - JOUR
KW - pfc
AU - M. Thorpe
AU - F. Adler
AU - Kevin Cossel
AU - M. de Miranda
AU - Jun Ye
AB - Cavity-enhanced direct frequency comb spectroscopy is used to obtain simultaneously high resolution and broad spectral-bandwidth measurements of a supersonically cooled jet of acetylene molecules. We demonstrate a complete spatial mapping of density, velocity, and internal state distributions of a cold molecular jet via tomographic reconstructions. These measurements reveal interesting and never-before-observed features of the pulsed jet expansion, including anomalous C2H2 absorption lineshapes and anomalous spatial variations of the rotational temperature distribution. The demonstrated capabilities establish this technique as a powerful new tool for studies of cold molecules.
BT - Chemical Physics Letters
DA - 2009-01
DO - 10.1016/j.cplett.2008.11.064
N2 - Cavity-enhanced direct frequency comb spectroscopy is used to obtain simultaneously high resolution and broad spectral-bandwidth measurements of a supersonically cooled jet of acetylene molecules. We demonstrate a complete spatial mapping of density, velocity, and internal state distributions of a cold molecular jet via tomographic reconstructions. These measurements reveal interesting and never-before-observed features of the pulsed jet expansion, including anomalous C2H2 absorption lineshapes and anomalous spatial variations of the rotational temperature distribution. The demonstrated capabilities establish this technique as a powerful new tool for studies of cold molecules.
PY - 2009
SP - 1
EP - 8
T2 - Chemical Physics Letters
TI - Tomography of a supersonically cooled molecular jet using cavity-enhanced direct frequency comb spectroscopy
VL - 468
SN - 00092614
ER -