Topics (selected papers):
1. Reststrahlregion of ionic crystals (W. Kaiser et al., Phys. Rev. 127(1962) 1950; J. Humlicek, Thin Solid Films 313-314(1998) 687).
2. Ultrathin silicon oxide layers in the infrared ( K. T. Queeney et al., J. Appl. Phys. 87(2000) 1322; M. Klevenz et al., Phys. Stat. Sol. B 247 (2010) 2179).
3. Optical properties of inorganic semiconductors(P. Lautenschlager et al., Phys. Rev. B 36 (1987) 4821; T.S. Moss, Phys. Stat. Sol. B 131(1985) 415).
4. Optical properties of organic semiconductor crystals (M. Dressel et al., Optics Express 16 (2008) 19771).
5. Hyperbolic materials (M. Esslinger et al., ACS Photonics 1 (2014) 1285).
6. Phase change materials (K. Shportko et al., Nature Materials 7 (2008) 653).
7. Phase transitions (A. A. Sirenko et al., Nature 404 (2000) 373; M. M. Qazilbash et. al., Science 318 (2007) 1750).
8. Optical properties of free electron systems (H. Ehrenreich et al., Phys. Rev. 132 (1963) 1918; H. U. Yang et al., Phys. Rev. B 91(2015) 235137)
9. Ultrathin metal layers (A. Pucci et al., Phys. Rev. B 74 (2006) 125428)
10. Nanoparticles (Qi -C. Sun et al., Chem. Materials 23 (2011) 2956; K. Dohnalova et al., Light: Science & Applications 2 (2013) e47).
11. Graphene (K. F. Mak et al., Phys. Rev. Lett. 101 (2008) 196405, Y. Zhang et al., Nature 459 (2009) 820).
12. Weyl semimetals( B. Xu et al., Phys. Rev. B 93 (2016) 121110(R); P. E. C. Ashby and J. P. Carbotte, Phys. Rev. B 89 (2014) 245121).