Dual-comb absorption spectroscopy of molecular CeO in a laser-produced plasma
Ryan T. Rhoades, Reagan R. D. Weeks, Seth E. Erickson, Caroline Lecaplain, S. S. Harilal, Mark C. Phillips, R. Jason Jones
Abstract
Broadband and high-resolution absorption spectra of molecular cerium oxide (CeO) are obtained in a laser-produced plasma using dual-comb spectroscopy. Simultaneous measurements of Ce and CeO are used to probe time-resolved dynamics of the system. A spectral resolution of 1.24 GHz (2.4 pm) over a bandwidth of 378.7-383.7 THz (781.1-791.5 nm) allows simultaneous detection of hundreds of closely spaced rotational transitions in complex CeO bands.
Topics & Concepts
Materials scienceSpectroscopyAbsorption spectroscopyOpticsLaserSpectral resolutionPlasmaAbsorption (acoustics)Spectral lineResolution (logic)PhysicsQuantum mechanicsAstronomyArtificial intelligenceComputer scienceLaser-induced spectroscopy and plasmaAdvanced Fiber Laser TechnologiesAnalytical chemistry methods development