Feofilov Sergei Petrovich

Publications in Math-Net.Ru

1. Cr$^{3+}$-doped crystals as promising materials for laser cooling of solids
   
   Fizika Tverdogo Tela, 63:10 (2021),  1633–1636
2. Luminescence of yttrium–aluminum garnet crystals with Eu$^{2+}$ impurity ions
   
   Fizika Tverdogo Tela, 59:3 (2017),  476–478
3. Ferroelectric phase transition-induced pseudo-stark splitting in $\mathrm{Li}_{2}\mathrm{Ge}_{7}\mathrm{O}_{15}:\mathrm{Cr}^{3+}$ crystals
   
   Fizika Tverdogo Tela, 34:11 (1992),  3377–3386
4. Optical studies of $\mathrm{Al}_{2}\mathrm{O}_{3}:\mathrm{Ti}^{3+}$ in an electric field: discovery of two-step photoionization of $\mathrm{Ti}^{3+}$ ions and of the linear Stark effect in their spectra
   
   Fizika Tverdogo Tela, 32:6 (1990),  1898–1900
5. Fluorescence line narrowing and optical detection of nonequilibrium $\mathrm{THz}$ acoustic phonons in disordered $\mathrm{MgAl}_{2}\mathrm{O}_{4}:\mathrm{Cr}^{3+}$
   
   Fizika Tverdogo Tela, 31:3 (1989),  199–202
6. Photocurrent kinetics and the mechanism of absolute negative photoconductivity in ruby
   
   Fizika Tverdogo Tela, 29:4 (1987),  1284–1288
7. Inelastic resonant scattering of terahertz acoustic phonons from distant exchange-coupled chromium ion pairs in ruby
   
   Fizika Tverdogo Tela, 28:12 (1986),  3616–3623
8. Critical concentration dependence of electrical instability of optically excited ruby crystals
   
   Fizika Tverdogo Tela, 28:3 (1986),  929–932
9. Excitation energy transport in ruby induced by $29$ cm$^{-1}$ resonance phonons
   
   Fizika Tverdogo Tela, 26:6 (1984),  1808–1811
10. Effect of exchange-coupled ion $\mathrm{Cr}^{3+}$ pairs on $29$ cm$^{-1}$ phonon trap in excited ruby
    
    Fizika Tverdogo Tela, 25:9 (1983),  2731–2737