1. A. K. Visheratina, A. O. Orlova, V. G. Maslov, A. V. Fedorov, and A. V. Baranov, Opt. Zh. 82 (11), 30 (2015).
2. A. S. Kulagina, V. V. Danilov, V. B. Shilov, K. M. Grigorenko, V. V. Vlasov, and G. M. Ermolaeva, Opt. Spectrosc. 123, 164 (2017).
3. A. I. Arzhanov, K. R. Karimullin, and A. V. Naumov, in Proceedings of the 11th International Symposium on Photon Echo and Coherent Spectroscopy PhECS-2017 (2017), p. 151.
4. A. V. Zasedatelev, V. A. Krivenkov, and I. L. Martynov, Izv. Samar. Nauch. Tsentra RAN 15, 108 (2013).
5. J. Zhao, J. A. Bardecker, A. M. Munro, M. S. Liu, Y. Niu, I.-K. Ding, J. Luo, B. Chen, A. K.-Y. Jen, and D. S. Ginger, Nano Lett. 6, 463 (2006).