The HITRAN database is a compilation of molecular spectroscopic parameters. It was
established in the early 1970s and is used by various computer codes to predict and …

There is an increasing demand for precise molecular spectroscopy, in particular in the mid-
infrared (MIR) fingerprint window that hosts a considerable number of vibrational signatures …

We use a Fourier transform spectrometer based on a difference frequency generation optical
frequency comb to measure high-resolution, low-pressure, room-temperature spectra of …

Abstract A Marvel (Measured Active Rotational Vibrational Energy Levels) analysis of the
available spectroscopic data on methane (12 C 1 H 4) is performed. A total of 82173 …

Optical-optical double-resonance spectroscopy with a continuous wave pump and
frequency comb probe allows measurement of sub-Doppler transitions to highly excited …

The goal of this white paper is to provide a snapshot of the data availability and data needs
primarily for the Ariel space mission, but also for related atmospheric studies of exoplanets …

We have developed a mid-infrared Doppler-free saturation absorption spectroscopy
apparatus that employs a commercial continuous-wave optical parametric oscillator (CW …

Optical measurements of electric fields have wide-ranging applications in the fields of
chemistry and biology. Previously, such measurements focused on shifts in intensity or …

We carry out infrared-infrared double-resonance spectroscopy of the 2 ν 3 A 1-ν 3 band of
methane. Ten transitions of Q (1) to Q (4) are observed with an 88.5-THz difference …

The molecular ion D 2 H+ is an important species in cold interstellar environments and a key
benchmark for ab initio calculations. We have measured 37 transitions in the ν 1 …