Relativistic electron beams driven by laser wakefield acceleration were utilized to produce ultrashort neutron sources. The experiment was carried out on the 38 fs, ~0.5 J, 800 nm Ti:Sapphire laser in the 10 TW UT3 laser lab at University of Te
The low divergent Dammann grating is researched for the potential applications in aerospace. A laser-beam writing system is developed for writing the low divergent Dammann grating. The uniformity and efficiency of the Dammann grating are presented in this
Infinitely narrow photon beams have been used in the former Monte Carlo modelling about the signal of optical coherence tomography (OCT). However, the focused spot size is finite and determined by the center wavelength of the optical source. In the presen