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An improved energy conversion device for converting the energy carried by a laser beam to kinetic energy of a working fluid transparent to the laser radiation incorporates a seed gas having a relatively low dissociation temperature. The beam is focused to a beam spot the maximum diameter of which de

An improved energy conversion device for converting the energy carried by a laser beam to kinetic energy of a working fluid transparent to the laser radiation incorporates a seed gas having a relatively low dissociation temperature. The beam is focused to a beam spot the maximum diameter of which depends on the total power of the beam.

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A method for converting electromagnetic radiation energy from a CO2 laser to kinetic energy of a kinetic fluid comprising the steps of: mixing a low atomic weight working fluid that is substantially transparent to CO2 radiation with a predetermined portion of a radiation conversion material having t

A method for converting electromagnetic radiation energy from a CO2 laser to kinetic energy of a kinetic fluid comprising the steps of: mixing a low atomic weight working fluid that is substantially transparent to CO2 radiation with a predetermined portion of a radiation conversion material having triatomic molecules with atomic weights of less than 20 to form a kinetic fluid; passing said kinetic fluid into a heating chamber; generating at least one beam of CO2 optical radiation and having at least one power level; transporting said at least one beam of optical radiation to said heating chamber; focusing said at least one beam of optical radiation to at least one predetermined focus area within said heating chamber; absorbing electromagnetic energy from said at least one beam in said focus area by interaction with said radiation conversion material; and transferring kinetic energy from said radiation conversion material to said working fluid, said at least one focus area being related to said at least one power level so that a portion of said kinetic fluid within said focus area is raised to a nonequilibrium state having a highest temperature between about 1,000°K. and about 5,000°K.