Cross polarization from laser-polarized solid xenon to 13CO2 by low-field thermal mixing

✍ Scribed by C.R. Bowers; H.W. Long; T. Pietrass; H.C. Gaede; A. Pines

• Book ID: 103036463
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 280 KB
• Volume: 205
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)89223-5

✦ Synopsis

The first observation of nuclear spin polarization enhancement in a molecular species by coupling to laser-polarized xenon is reported. The spins of '%Oz were cooled by inclusion into the xenon solid followed by thermal mixing in magnetic fields cornparable to the heteronuclear dipolar interactions. High-field NMR detection yielded enhancement factors of up to 200. Moreover, a change in the sense of the helicity of the optical pumping light results in a sign reversal of the spin temperature and hence an inversion of the 13C NMR signal.