A mechanical shutter enabled performing irradiation cycles, which inside the experiments below noted experienced one s period and 2 s dark time separation. The probe beam originates from a small-ability He-Ne laser (λ�?�?33 nm) concentrated to your waistline of 20 µm and counter propagating with regard on the eco-friendly pump https://lithium-niobate-crystal91346.amoblog.com/lithium-niobate-crystal-an-overview-54351036