Unveiling the Zero-Phonon Line of the Boron Vacancy Center by Cavity-Enhanced Emission

Chenjiang Qian, Viviana Villafañe, Martin Schalk, G. V. Astakhov, Ulrich Kentsch, Manfred Helm, Pedro Soubelet, Nathan P. Wilson, Roberto Rizzato, Stephan Mohr, Alexander W. Holleitner, Dominik B. Bucher, Andreas V. Stier, Jonathan J. Finley