公开(公告)号：US10247659B2

公开(公告)日：2019-04-02

申请号：US15305773

申请日：2015-04-24

Applicant: MENAPIC ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)

Inventor： Arnaud Devos ,  Patrick Emery ,  Arnaud Le Louarn

IPC: H01S1/00 ,  H04B10/2537 ,  G01N21/17 ,  G01N21/63

Abstract: The present invention relates to a device (1) for characterizing an interface of a structure (6), said structure (6) comprising a solid first material and a second material, the materials being separated by said interface. The device (1) comprises: means (2) for generating a first mechanical wave; means (2) for forming Brillouin oscillations; means (10) for detecting time variation of the Brillouin oscillations; means (12) for responding to the time variation of the Brillouin oscillations to identify reflection of said first mechanical wave by said interface or transmission through said interface of a second mechanical wave interfering with the first mechanical wave; and means (13) for determining the variation in amplitude of the Brillouin oscillations before and after reflection or transmission by said interface. The invention also relates to a corresponding method of characterization.

公开(公告)号：US20170045440A1

公开(公告)日：2017-02-16

申请号：US15305773

申请日：2015-04-24

Applicant: MENAPIC ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.)

Inventor： Arnaud DEVOS ,  Patrick EMERY ,  Arnaud LE LOUARN

IPC: G01N21/17 ,  G01N21/63

CPC classification number: G01N21/1702 ,  G01N21/636 ,  G01N2021/1706 ,  G01N2021/638

Abstract: The present invention relates to a device (1) for characterizing an interface of a structure (6), said structure (6) comprising a solid first material and a second material, the materials being separated by said interface. The device (1) comprises: means (2) for generating a first mechanical wave; means (2) for forming Brillouin oscillations; means (10) for detecting time variation of the Brillouin oscillations; means (12) for responding to the time variation of the Brillouin oscillations to identify reflection of said first mechanical wave by said interface or transmission through said interface of a second mechanical wave interfering with the first mechanical wave; and means (13) for determining the variation in amplitude of the Brillouin oscillations before and after reflection or transmission by said interface. The invention also relates to a corresponding method of characterization.

Abstract translation: 本发明还涉及相应的表征方法。