Experimental work is conducted to investigate the transient vibration of a structure by an argon laser beam. The conversion of laser light into mechanical energy has been studied through focusing laser beam to vaporize material from a target attached to the structure. The rapid ejection of target material results in an impulsive reaction transmitted to the structure. Different target materials are tested to enhance the efficiency of energy conversion. A clamped beam and a cantilever beam are used in the experiments and the measured natural frequencies are compared favorably with the calculated ones. Beam splitters and multiple targets are used to test the concept of multipoint simultaneous impulsive loading.