5 papers
Optical frequency comb Fourier transform spectroscopy of the CHBrBr, CHBr, and CHBr isotopologues in the 1180-1210 cm region
Ibrahim Sadiek, Aleksandr A. Balashov, Adrian Hjältén +3
Quantitative spectroscopic detection of dibromomethane, CHBr, for environmental monitoring, workplace safety, and exoplanetary studies is limited by the lack of accurate ab…
Formation of HNC and HCN isomers in molecular plasmas revealed by frequency comb and quantum cascade laser spectroscopy
Ibrahim Sadiek, Simona Di Bernardo, Uwe Macherius +1
Hydrogen cyanide (HCN) is a well-known product in combustion, astrophysical, and plasma environments, but its isomer, hydrogen isocyanide (HNC), remains unexplored in molecular pla…
Data availability and requirements relevant for the Ariel space mission and other exoplanet atmosphere applications
Katy L. Chubb, Séverine Robert, Clara Sousa-Silva +52
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 exo…
Precision frequency comb spectroscopy of the NO, NNO, NNO, and NO isotopocules in the 3300-3550 cm range
Adrian Hjältén, Ibrahim Sadiek, Aleksandra Foltynowicz
Nitrous oxide is a long-lived greenhouse gas. Its isotopic composition provides valuable insights into sources and sinks, and about the mechanism of formation. A major challenge in…
An air-spaced virtually imaged phased array with 94 MHz resolution for precision spectroscopy
Ibrahim Sadiek, Norbert Lang, Jean-Pierre H. van Helden
We report on an air-spaced virtually imaged phased array (VIPA) spectrometer that resolves the modes of a mid-infrared frequency comb with a repetition rate of 250 MHz, without an…