High acoustic-amplitude laser-induced plasma (LIP) sound generator
US12327542B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Feb 14, 2023 |
| Grant date | Jun 10, 2025 |
| Priority date | — |
| Expiry date | Mar 3, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R23/008
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.