35 citations · 119 across the 14 of their papers we have counts for
5 papers · 1 filter
Blueshift of high-order harmonic generation in crystalline silicon subjected to intense femtosecond near-infrared laser pulse
Boyan Obreshkov, Tzveta Apostolova
We present the generation of high order harmonics in crystalline silicon subjected to intense near-infrared 30fs laser pulse. The harmonic spectrum extends from the near infrared t…
Sub-cycle dynamics of electron-hole pairs and high-harmonic generation in bulk diamond subjected to intense femtosecond laser pulse
T. Apostolova, B. Obreshkov
We present calculation of photoexcitation and high-harmonic generation in bulk diamond induced by intense near-infrared laser pulse of photon energy 1.55 eV, time duration of 15 fs…
High harmonic generation from bulk diamond driven by intense femtosecond laser pulse
Tzveta Apostolova, Boyan Obreshkov
We present theoretical results on the high-harmonic generation (HHG) in bulk diamond induced by intense laser pulse of wavelength 800 nm and duration 15 fs. For laser intensity in…
Collisional shift and broadening of the transition lines in pionic helium
Boyan Obreshkov, Dimitar Bakalov
We calculate the density shift and broadening of selected dipole transition lines of pionic helium in gaseous helium at low temperatures up to T=12 K and pressure up to a few bar.…
Mapping out atom-wall interaction with atomic clocks
A. Derevianko, B. Obreshkov, V. A. Dzuba
We explore a feasibility of measuring atom-wall interaction using atomic clocks based on atoms trapped in engineered optical lattices. Optical lattice is normal to the wall. By mon…