Ultrashort-laser electron–hole plasma and intragap states in diamond G. K. Krasin, S. I. Kudryashov, P. A. Danilov, N. A. Smirnov, A. O. Levchenko and M. S. Kovalev Eur. Phys. J. D, 75 8 (2021) 221 Published online: 09 August 2021 DOI: 10.1140/epjd/s10053-021-00234-0