Verification of optical storage in liquids at room temperature: dramatic suppression of relaxation effects on the optical response of molecules due to nanoconfinement

2016 Fiscal Year Final Research Report

• Project/Area Number: 26600017
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural physics
• Research Institution: National Institutes for Quantum and Radiological Science and Technology (2016); Japan Atomic Energy Agency (2014-2015)
• Principal Investigator: MURAKAMI Hiroshi 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 量子生命科学研究部, 研究員(定常) (50291092)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 逆ミセル / ホールバーニング / ナノ空間 / ガラス / 緩和 / 光応答 / 色素分子 / 熱雑音

Outline of Final Research Achievements

Electronic functional elements are　usually constituted in the solid state. Quantum computer is kept near absolute zero temperature (-273 degrees Celsius). This is because the quantum state of microscopic particles such as electrons is so fragile that it relaxes under the thermal noise due to large and rapid atomic motions and that the function due to the quantum state does not maintain. In the present study, a dye molecule was introduced into a nanometer-sized reverse micelle, and its optical response was examined by persistent hole-burning spectroscopy. It has been demonstrated that the relaxation of the electronic state of the dye molecule is suppressed owing to the nanoconfinement regardless of the presence of thermal noise in liquids at room temperature. This result suggests the possibility of novel functional nano-elements and provides one way to clarify the quantum-mechanical effect on biological reactions.

Free Research Field

化学物理、光物性、生物物理