Unmanned aerial vehicles (UAVs) have been undergoing fast development for providing
broader signal coverage and more extensive surveillance capabilities in military and civilian …

The invention of the laser has resulted in many innovations, and the device has become
ubiquitous. However, the maser, which amplifies microwave radiation rather than visible …

Recently, the world's first room-temperature maser was demonstrated. The maser consisted
of a sapphire ring housing a crystal of pentacene-doped p-terphenyl, pumped by a pulsed …

The first solid-state masers to operate at room-temperature and ambient air-pressure were
recently demonstrated using optically pumped spin-triplet states as the gain medium. In this …

Conjugated polymeric materials and their nanocomposites are widely used for the creation
of alternative sources of renewable energy, cell phone screens, mobile gadgets, video …

Mesomorphic fullerene derivatives of dendritic structure were studied in solutions by the
method of electrooptical Kerr effect, hydrodynamic methods (translation diffusion and …

We review the theory and the experimental demonstration of one of the novel advanced
particle acceleration techniques dubbed PASER‐for particle acceleration by stimulated …

This study is an extension of a recent theoretical treatment for calculating the magnetization
generated by the encounters of radicals and photoexcited triplets in solution. Whereas the …

Porphyrins and related compounds are basic moieties which upon photoexcitation produce
paramagnetic transients important to many processes in biology, material science and light …

The wakefields of a relativistic electron beam passing through a waveguide loaded with an
active medium with weak resonant dispersion are considered. For the calculations in this …