High acoustic-amplitude laser-induced plasma (LIP) sound generator
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsBienvenido Melvin L. Pascoguin, Brittany Lynn, Michael P. Ross
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Abstract
A laser-induced plasma (LIP) sound generator comprising: a laser beam and a first beam splitter configured to split the laser into a plurality of sub-laser beams such that each sub-laser beam creates a LIP at a respective focal point, wherein each focal point lies within an imaginary sphere having a radius that is less than half of a desired sound wavelength such that acoustic fields of the LIPs add together as if from a single point source.
Claims17
A laser-induced plasma (LIP) sound generator comprising:
- a laser beam;
- a first beam splitter configured to split the laser into a plurality of sub-laser beams such that each sub-laser beam creates a LIP at a respective focal point, wherein each focal point lies within an imaginary sphere having a radius that is less than half of a desired sound wavelength such that acoustic fields of the LIPs add together as if from a single point source.
A method for generating high-amplitude acoustic energy from laser-induced plasma (LIP) comprising:
- generating a plurality of laser beams, wherein each laser beam is configured to generate a LIP at a respective focal point such that acoustic energy is generated by each LIP;
- and
- focusing each of the plurality of laser beams such that each focal point lies within an imaginary sphere having a radius that is less than half of a desired sound wavelength such that the acoustic energy generated by each LIP is added together as if from a single point source.
Dependencies are inferred from the claim text.