Phase variation of focused surface acoustic wave

DOI	Trouver le DOI : https://doi.org/10.1063/1.95643
Auteur	Rechercher : Jen, C. K.¹; Rechercher : Cielo, P.¹; Rechercher : Bussiere, J.¹; Rechercher : Nadeau, F.¹; Rechercher : Farnell, G. W.
Affiliation	Conseil national de recherches Canada
Format	Texte, Article
Résumé	Converging and diverging surface acoustic waves (SAW) have been generated and detected using a noncontacting method. A yttrium aluminum garnet laser together with an axicon lens produces a focused optical ring which excites both converging and diverging SAW on the test sample. An optical interferometer is used to measure the vertical displacement of the SAW. Variations of the SAW pulse waveforms in different positions along the radial direction of the ring are given. It is found that about 10 SAW wavelengths away from the focus, a 90° phase difference exists between the Fourier components of the SAW going toward the focus and of that having passed through and moving away.
Date de publication	1985-02
Maison d’édition	AIP
Dans	Applied Physics Letters 46, nº 3 : 241–243.
Langue	anglais
Publications évaluées par des pairs	Oui
Numéro du CNRC	CNRC 26804 NRC-IGM85-401-476
Numéro NPARC	23004107
Exporter la notice	Exporter en format RIS
Signaler une correction	Signaler une correction (s'ouvre dans un nouvel onglet)
Identificateur de l’enregistrement	fcb5b829-de7e-4a2c-b0b7-499d08ed2fcb
Enregistrement créé	2018-09-27
Enregistrement modifié	2020-03-17