Far-field fluorescence microscopy has made great progress in the spatial resolution, limited by light diffraction, since the super-resolution imaging technology appeared. And stimulated emission depletion (STED) microscopy and structured illumination micr
The spectral line intensities and line shifts of Lyman and Balmer series for transitions up to n = 5 of hydrogen-like ion are studied in plasmas with densities and temperatures in the ranges ne ~1018-1021 cm-3, Te = 0.3-1.2 eV respectively. The screened p
Controlled obtaining of orbital angular momentum (OAM) modes of light at high power over arbitrary orders has important implications for future classical and quantum systems. Appreciable optical amplification has recently been observed for low-order or sp