DIAMOND SIDE RESONANCES: INFLUENCE OF ISOTOPIC SUBSTITUTION OF CARBON

Abstract

We discuss the side resonances of the optically detected magnetic resonance in a diamond crystal and propose a new approach to the calculation of the hyperfine interaction in a composed system consisting of a negatively charged nitrogen-vacancy 𝑁𝑉 − center and a nearby ¹³𝐶 nuclear spin. The energy levels, rule selection and radiative transitions are obtained by a new method. The base of this method is the use of a complete set of commuting operators and entangled spin states. An estimation of the carbon hyperfine splitting parameters in the diamond 𝑁𝑉 − center from side-resonance frequencies is obtained in the frame of this method.