• 专利标题:   Integrated optical fiber type photo-acoustic probe for lateral ultrasonic excitation and detection, has Fabry-Perot cavity type photo-acoustic signal detection unit provided with medium mirror and polymer film.
  • 专利号:   CN112858180-A, CN112858180-B
  • 发明人:   LI C, LU S, LIU J
  • 专利权人:   UNIV BEIHANG
  • 国际专利分类:   G01N021/17
  • 专利详细信息:   CN112858180-A 28 May 2021 G01N-021/17 202159 Pages: 10 Chinese
  • 申请详细信息:   CN112858180-A CN10037631 12 Jan 2021
  • 优先权号:   CN10037631

▎ 摘  要

NOVELTY - The probe has a photo-acoustic signal excitation unit (3) deposited with a photo-acoustic material (31). A 45 degrees inclined grating (5) is located on an optical fiber core (4). A coating layer is stripped at an end of an optical fiber (1). The 45 degrees inclined grating is prepared on the optical fiber core. A side wall of a side polishing optical fiber is deposited with the photo-acoustic material. An Fabry-Perot cavity type photo-acoustic signal detection unit (2) is provided with a medium mirror (21) and a polymer film (22). The 45-degreeinclined grating and the photo-acoustic signal detection unit have same axial position on the optical fiber, where light absorbing material is nano-gold particles, graphene, carbon black or nano-carbon powder. USE - Integrated optical fiber type photo-acoustic probe for lateral ultrasonic excitation and detection. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) an integrated optical fiber type photo-acoustic probe manufacturing method; and (2) an integrated optical fiber type photo-acoustic probe testing method. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of an integrated optical fiber type photo-acoustic probe for lateral ultrasonic excitation and detection. Optical fiber (1) Fabry-Perot cavity type photo-acoustic signal detection unit (2) Photo-acoustic signal excitation unit (3) Optical fiber core (4) 45 degrees inclined grating (5) Medium mirror (21) Polymer film (22) Photo-acoustic material (31)