Population manipulation and quantum memory application using erbium-oxide crystals

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360033
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: NTT Basic Research Laboratories
• Principal Investigator: TAWARA Takehiko 日本電信電話株式会社NTT物性科学基礎研究所, 量子光物性研究部, 主任研究員 (40393798)
• Co-Investigator(Kenkyū-buntansha): OMI Hiroo NTT物性科学基礎研究所, 機能物質科学研究部, 主任研究員 (50257218) ; GOTOH Hideki NTT物性科学基礎研究所, 量子光物性研究部, 部長 (10393795) ; SOGAWA Tetsuomi NTT物性科学基礎研究所, 量子光物性研究部, 所長 (70211993) ; KURAMOCHI Eiichi NTT物性科学基礎研究所, 量子光物性研究部, 主任研究員 (10393802) ; ADACHI Satoru 北海道大学, 工学研究院, 教授 (10221722)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 酸化エルビウム / STIRAP / エネルギー移動 / 量子メモリ

Outline of Final Research Achievements

Toward realization of the quantum optical memories using erbium-oxides epitaxial thin films, we investigated the electron dynamics of the erbium ions in the crystal. Particularly we clarified the characteristics of the energy transfer induced by erbium-erbium interaction, which depends on the interionic distance. Moreover we demonstrated that this energy transfer can be controlled by using the photonic crystal structures. These are the promising results for the realization of the high-efficient quantum memories operating with telecom-band photons.

Free Research Field

光物性