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

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Pure, highly-spin-polarized molecules have only been produced with molecular beam-separation methods, with production rates up to ${\sim}3\times10^{12}$ s$^{-1}$. Here, we propose the production of isotopes of hydrogen ${\rm (H_2}$, ${\rm… Click to show full abstract

Pure, highly-spin-polarized molecules have only been produced with molecular beam-separation methods, with production rates up to ${\sim}3\times10^{12}$ s$^{-1}$. Here, we propose the production of isotopes of hydrogen ${\rm (H_2}$, ${\rm D_2}$, ${\rm HD}$, ${\rm DT)}$ and water (${\rm H_2 O}$, ${\rm D_2 O)}$ at rates up to ${\sim}10^{22}$ s$^{-1}$, from the IR-excitation and photodissociation of molecular beams of formaldehyde ${\rm (CH_2 O)}$ and formic acid ${\rm (CH_2 O_2 )}$, respectively. These macroscopic quantities are sufficient 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 ${\sim}50{\%}$.

Keywords: excitation photodissociation; production; molecular beams; polarized molecules; spin polarized; photodissociation molecular

Journal Title: Chemical Physics Letters
Year Published: 2021

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