On the possibility of ultrashort shear acoustic pulse excitation due to the laser-induced electrostrictive effect
| Autor: | J.-M. Breteau, Denis Mounier, Vitaly Gusev, Pascal Picart |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Femtosecond pulse shaping
Materials science Electrostriction business.industry Physics::Optics Polarization (waves) Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics Multiphoton intrapulse interference phase scan law otorhinolaryngologic diseases sense organs Physics::Atomic Physics Electrical and Electronic Engineering Physical and Theoretical Chemistry business Ultrashort pulse Excitation Bandwidth-limited pulse |
| Zdroj: | Optics Communications. 204:229-236 |
| ISSN: | 0030-4018 |
| Popis: | A simple theory is developed and numerical estimates presented to demonstrate the possibility of exciting ultrashort acoustic pulses in optically transparent materials by laser-induced electrostrictive surface mechanical stresses. Both longitudinal and shear coherent acoustic pulses can be excited. The conditions for which the polarization of ultrashort shear pulses are controlled by the polarization of an incident laser pulse are established. The profiles and durations of longitudinal and shear acoustic strain pulses are shown to coincide with laser pulse intensity envelope. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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