A mechanical shutter enabled accomplishing irradiation cycles, which from the experiments below noted had 1 s length and a couple of s dim time separation. The probe beam originates from a low-electric power He-Ne laser (λ�?�?33 nm) concentrated into a waist of 20 µm and counter propagating with respect into https://josuesvxxt.bcbloggers.com/31745492/lithium-niobate-crystal-an-overview