Macroscopic production of highly nuclear-spin-polarized molecules from IR-excitation and photodissociation of molecular beams

• URL: http://arxiv.org/abs/2010.10367v4
• Date: Wed, 8 Sep 2021 20:37:06 GMT
• Title: Macroscopic production of highly nuclear-spin-polarized molecules from IR-excitation and photodissociation of molecular beams
• Authors: C. S. Kannis and T. P. Rakitzis
• Abstract summary: We propose the production of spin-polarized molecular photofragments from the IR-excitation and photodissociation of molecular beams. Production rates approaching the tabletop-IR-laser photon flux of $1021$ s$-1$.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Pure, highly nuclear-spin-polarized molecules have only been produced with molecular beam-separation methods, with production rates up to ${\sim}3{\times}10^{12}$ s$^{-1}$. Here, we propose the production of spin-polarized molecular photofragments from the IR-excitation and photodissociation of molecular beams, with production rates approaching the tabletop-IR-laser photon fluxes of $10^{21}$ s$^{-1}$. We give details on the production of spin-polarized molecular hydrogen and water isotopes, from formaldehyde and formic acid beams, respectively. Macroscopic quantities of these molecules are important for NMR signal enhancement, and for the needs of a nuclear fusion reactor, to increase the D-T or D-$^{3}$He unpolarized nuclear fusion cross section by ${\sim}50{\%}$.

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