Cavity ring-down spectroscopy (CRDS), first pioneered in 1988 by O'Keefe and Deacon, 1
has evolved into a newgeneration, precision spectroscopy in recent years and subsequently …

We present an accurate theoretical determination of rovibrational energy levels of the
hydrogen molecule and its isotopologues in its electronic ground state. We consider all …

Weak transitions in the (2, 0) overtone band of the hydrogen deuteride molecule at λ= 1.38 μ
m were measured in saturated absorption using the technique of noise-immune cavity …

Precision spectroscopy of the hydrogen molecule is a test ground of quantum
electrodynamics (QED), and it may serve for the determination of fundamental constants …

Accurate transition frequencies of six lines of the (2-0) vibrational band of H2 are reported
near 1.2 μm, namely Q1–Q4, S0, and S1. These weak electric-quadrupole transitions were …

We recalculate the leading relativistic corrections for the ground electronic state of the
hydrogen molecule using the variational method with explicitly correlated functions that …

We present an accurate measurement of the weak quadrupole S (2) 2-0 line in self-
perturbed D 2 and theoretical ab initio calculations of both collisional line-shape effects and …

We report a direct measurement of the 1–0 R (0) vibrational transition frequency in ground-
state hydrogen deuteride (HD) using infrared-ultraviolet double resonance spectroscopy in a …

Precision measurements on the hydrogen molecule are of fundamental importance in
understanding molecular theory. Comparison of accurate experimental data and theoretical …

We report the most accurate, to the best of our knowledge, measurement of the position of
the weak quadrupole S (2) 2–0 line in \rmD_2 D_2. The spectra were collected with a …