A HIGHLY SENSITIVE TECHNIQUE OF DETECTING SUPERNARROW SPECTRAL LINES BASED ON THE FREQUENCY RESONANCES OF A DOUBLE-MODE LASER N. G. Basov, M. A. Gubin, V. V. Nikitin, A. V. Nikulchin, D. A. Tyurikov, V. N. Petrovskiy et E. D. ProtscenkoJ. Phys. Colloques, 42 C8 (1981) C8-89-C8-95DOI: https://doi.org/10.1051/jphyscol:1981811