Nonlinear one-dimensional guided wedge waves

• Verfasst von: Lomonosov, Alexey M. [VerfasserIn]
• Verfasst von: Pupyrev, Pavel D. [VerfasserIn]
• Verfasst von: Hess, Peter [VerfasserIn]
• Verfasst von: Mayer, Andreas P. [VerfasserIn]
• Titel: Nonlinear one-dimensional guided wedge waves
• Verf.angabe: Alexey M. Lomonosov, Pavel D. Pupyrev, Peter Hess, and Andreas P. Mayer
• E-Jahr: 2015
• Jahr: 20 July 2015
• Fussnoten: Gesehen am 02.06.2020
• Titel Quelle: Enthalten in: Physical review / B
• Ort Quelle: College Park, Md. : APS, 1970
• Jahr Quelle: 2015
• Band/Heft Quelle: 92(2015,1) Artikel-Nummer 014112, 5 Seiten
• ISSN Quelle: 1550-235X
• DOI: doi:10.1103/PhysRevB.92.014112
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 169919565X

Abstract

The experimental observation of an efficient second-order nonlinearity with dominating frequency upconversion is reported for one-dimensional (1D) guided elastic waves localized at solid edges. These 1D acoustic wedge waves are a fundamental type of elastic wave with a phase velocity below that of surface and bulk waves and no coupling to them. Acoustic pulses, showing steepening, narrowing, and spiking to shocklike profiles, were generated and detected by a laser-based pump-probe setup. Shock formation is described by a nonlinear evolution equation, which allows the characteristic features of 1D guided shock waves to be predicted that differ from their bulk and surface analogs.