Diamond in Tel I u rite Glass: a New Medium for Quantum Information

摘要

Quantum mechanics has defined twentieth century technology and quantum information science has been identified as potentially one of the most disruptive technologies of the twenty-first century.!1! A major challenge for the development of this field is the requirement to create a quantum-classical interface to efficiently allow quantum information to be integrated with a photonic backbone. As such, componentry needs to be developed that places quantum emitters in the bound modes of photonic structures. In recent years, diamond color centers have become one of the most important platforms to exhibit room-temperature quantum effects.l2' Here we demonstrate a new medium suitable for quantum information consisting of diamond nanocrystals embedded in a tellurite glass, and have taken this material through an optical fiber drawing process. Single photon emission was demonstrated from the drawn material. By including diamond color centers within a soft glass we open the possibility of leveraging all of the designs of microstructured optical fibers'3' and optical cavities to integrate quantum emitters with bound optical modes.