Coherent control of a solid state qubit on an optical nanofiber

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13544
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Atomic/Molecular/Quantum electronics
• Research Institution: Tohoku University
• Principal Investigator: Sadgrove Mark 東北大学, 電気通信研究所, 准教授 (40625000)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: ナノフォトニクス / ナノ粒子 / 量子情報

Outline of Final Research Achievements

In this research, we made significant progress towards the goal "Coherent control of a solid state qubit on an optical nanofiber". The progress and successes will be described below.
i) Establishment of new nanofiber fabrication equipment at Tohoku University: A new experiment was built to manufacture high transmission nanofibers. Nanofibers with diameters as low as 300 nm and transmissions as high as 98% were realized. ii) Near-deterministic deposition of single nanoparticles on a nanofiber: Solid-state emitters in the form of nano-crystals can be interfaced by with optical nanofibers by placing them on the surface of the nanofiber. We devloped a method for depositing nanoparticles on the surface of a nanofiber with a good success rate (~50%) of achieving a single nanoparticle. iii) We fabricated grating nanostructures to create nanofiber cavities and to measure nanofiber diameters. iv) We developed new methods for trapping particles at optimal positions for nanofiber coupling.

Free Research Field

ナノフォトニクス