USE OF PULSED THERMAL RADIATION AND NANO-PARTICLES FOR THE EFFECTIVE GENERATION OF SOUND WAVES IN KHZ RANGE
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United States of America Patent
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Mar 3, 2016
app pub date -
Aug 28, 2014
filing date -
Aug 28, 2014
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Disclosed herein is a high-efficiency kilohertz-range acoustic wave generator using a pulsed thermal radiation beam and nanoparticles. A vibration (pulse) generating means having a suspension structure is provided behind a light interrupter. The suspension structure is configured such that nanoparticles are suspended in a solution so that when the nanoparticles are thermally expanded by pulse beams directly applied to the nanoparticles and are thermally contracted, the solution vibrates (generates matter waves and pressure waves). Thereby, loss of pulse beams can be minimized, and energy having a relatively large wavelength can be easily obtained. Therefore, the efficiency and productivity in generating acoustic waves can be maximized.
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