Preparation, isolation, storage, and spectroscopic characterization of water vapor enriched in the ortho-H2O nuclear spin isomer

Pierre-Alexandre Turgeon, Patrick Ayotte, Elina Lisitsin, Yossi Meir, Tatyana Kravchuk, and Gil Alexandrowicz
Phys. Rev. A 86, 062710 – Published 21 December 2012

Abstract

Using magnetic focusing in a supersonic jet, a beam of “normal” H2O molecules seeded in a krypton carrier gas is shown to provide a source of water molecules that is highly enhanced in the ortho-H2O (o-H2O) nuclear spin isomer over the high-temperature equilibrium 3:1 ortho:para ratio. Water from the magnetically focused beam is then isolated and stored within a Kr matrix at 13 K whereby the amplitude and lifetime of this strong nuclear spin polarization are quantified spectroscopically. Attempts to store the polarization in a colder Kr matrix reveal complex nuclear spin conversion processes.

  • Figure
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  • Received 14 September 2012

DOI:https://doi.org/10.1103/PhysRevA.86.062710

©2012 American Physical Society

Authors & Affiliations

Pierre-Alexandre Turgeon1, Patrick Ayotte1,*, Elina Lisitsin2, Yossi Meir2, Tatyana Kravchuk2, and Gil Alexandrowicz2,†

  • 1Département de Chimie, Université de Sherbrooke, 2500 Boulevard Université, Sherbrooke, Québec, Canada J1K 2R1
  • 2Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haïfa 32000, Israel

  • *patrick.ayotte@usherbrooke.ca
  • ga232@tx.technion.ac.il

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Issue

Vol. 86, Iss. 6 — December 2012

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