Color centers in diamond for quantum applications

F. C. Waldermann, P. Olivero, Joshua Nunn +10 more

Zhiping Ju, Junjie Lin, Si Qing Shen +2 more

As a non-classical light source, single-photon source plays an essential role in the foundation of quantum physics and has been attracting a lot of attention of researchers over the world. Up to now, among different kinds of single-photon sources, single color centers in the diamond are very outstanding for the stable emission at room temperature as well as the spin controllability at ambient environment. Those color centers in the diamond with excellent properties are usually formed by impurity atoms and lattice vacancies. Nowadays, complex environments are necessary to the preparation of color centers generally. This restricts the research and applications of those color centers to a certain extent. Therefore, to develop efficient and high-precision fabrication methods of single color centers in the diamond at ambient environment is a need. On this condition, femtosecond (fs) laser process, a mature micro-nano processing technology, have been demonstrated to be a feasible, efficient, and fast production of the color centers in the diamond. This review discusses the state of the art in the preparation of single color centers in diamond and their applications in different areas.

Arthur Yu. Neliubov

Abstract Color centers in diamonds attract significant scientific attention due to their unique photophysical properties. This mini review covers some of the most promising applications of diamonds with color centers, such as biological imaging, sensing, and quantum information processing.

Petr Siyushev

Philip Hemmer

I discuss new ways to grow diamond that promise near-deterministic design of fluorescent color-centers, optimized for quantum sensing and metrology applications. The key is to grow diamond from organic molecules at a low enough temperature such that only some of the molecules decompose. This approach gives unprecedented control over the properties of diamond color centers by decoupling diamond-growth from color-center creation. In addition, low growth temperature produces high quality diamonds and allows a wider choice of growth pressures than is currently believed possible.

Christopher J. Ciccarino, Johannes Flick, Matthew E. Trusheim +1 more