Controlled flashlamp-illuminated phototropic switch

An investigation was made of a controlled phototropic switch which was initially bleached by flashlamps. Characteristics were determined of switches employing phthalocyanines Pc'GaCl (in ethanol) and Pc'H₂ (in polymethylmethacrylate). The ranges of switch control were studied and the parameters of a ruby laser with a switch of this kind were determined. An investigation was made of the influence of a flashlamp pulse on the time of appearance of a giant stimulated emission pulse.