Femtosecond Laser Inscription of Integrated Diamond Quantum Photonics for Quantum Information and Sensing

Apart from the outstanding perfect-for-application properties of optical transparency, hardness, bio-inertness and thermal conductivity of diamond, it has interested the scientific community due to a naturally occurring imperfection, the Nitrogen Vacancy (NV) color center. The NV center has emerged as an encouraging candidate for quantum computing due to its long electron spin coherence times and its ability to be found, manipulated and read out optically [1]. Additionally, the spin states are sensitive to magnetic and electric fields through the Zeeman and Stark effects, respectively and hence pose as a notable substrate for field sensing applications.