Development of surface-sensitive NMR with optical pumping and hyperpolarization labeling

2016 Fiscal Year Final Research Report

• Project/Area Number: 25287092
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: National Institute for Materials Science
• Principal Investigator: GOTO Atsushi 国立研究開発法人物質・材料研究機構, 先端材料解析研究拠点, 主幹研究員 (30354369)
• Co-Investigator(Renkei-kenkyūsha): HASHI Kenjiro 国立研究開発法人物質・材料研究機構, 先端材料解析研究拠点, 主幹研究員 (00321795) ; SHIMIZU Tadashi 国立研究開発法人物質・材料研究機構, 先端材料解析研究拠点, グループリーダー (00354366)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 核磁気共鳴 / 動的核偏極 / 光物性

Outline of Final Research Achievements

We have developed a scheme for nuclear magnetic resonance with both sensitivity and spatial selectivity by using hyperpolarization (highly polarized nuclear spin system) localized at the surface (interface) of a material (hyperpolarization labeling). Based on the optical pumping nuclear magnetic resonance system developed by ourselves, we have developed the following systems indispensable for the scheme: (1) a sample stage and its mounting system, (2) a light source system, (3) a light delivery system, and (4) a light control system. With the systems developed, we have demonstrated the selective detection of nuclear magnetic resonance signals from nuclei in the vicinity of the heterojunction in a gallium-arsenide-based heterostructure, by which the effectiveness of the scheme has been demonstrated.

Free Research Field

物理学