System and method for laser-ultrasonic frequency control using optimal wavelength tuning
US6176135A · kind A · utility
Inventors
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2694
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for generating a desired acoustic frequency content in a laser-generated ultrasonic wave emitted from a target in response to a laser pulse. The method includes generating a generation laser pulse using a laser source. An optimal wavelength .lambda..sub.0 for the generation laser pulse is determined using a computer. The optimal wavelength data is determined from material-specific, empirically calculated data stored in a storage device that is accessible to the computer. An optimal laser pulse is generated by shifting the generation laser pulse to the optimal wavelength .lambda..sub.0. The optimal laser pulse is directed to the target to generate the laser-generated ultrasonic wave with the desired frequency content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.