OPTICAL-CIRCUIT-INSPECTING PROBE - NIPPON TELEGRAPH & TELEPHONE

Title:

OPTICAL-CIRCUIT-INSPECTING PROBE

Document Type and Number:

WIPO Patent Application WO/2020/246019

Kind Code:

A1

Abstract:

This optical-circuit-inspecting probe is provided with: a piezoelectric element (101); and a gel-form transmission-medium layer (102) provided to an end part of the piezoelectric element (101), the transmission-medium layer (102) absorbing light and converting the light to sound waves. The piezoelectric element (101) can be configured from a piezoelectric ceramic such as Pb(Zr⋅Ti)O3 (PZT). The piezoelectric element (101) is formed in, e.g., a round columnar shape. The transmission-medium layer (102) is configured from a hydrogel. The hydrogel can be configured from, e.g., polydimethylsiloxane (PDMS). The transmission-medium layer (102) can also contain carbon.

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Inventors:

MIURA TORU (JP)
TANAKA YUJIRO (JP)
FUKUDA HIROSHI (JP)

Application Number:

PCT/JP2019/022706

Publication Date:

December 10, 2020

Filing Date:

June 07, 2019

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE (JP)

International Classes:

G01M11/00; C08K3/04; C08L83/04; G01N29/24; G02B6/124

Domestic Patent References:

WO2017085934A1

2017-05-26

Foreign References:

US20150316511A1	2015-11-05
US20130096413A1	2013-04-18

Other References:

PIL SANG, HEO JUNSEOK, PARK HUI, BAAC HYOUNG: "Photoacoustic Energy Sensor for Nanosecond Optical Pulse Measurement", SENSORS, vol. 18, 11 November 2018 (2018-11-11), pages 1 - 9, XP055766960, DOI: 10.3390/s18113879

Attorney, Agent or Firm:

YAMAKAWA, Shigeki et al. (JP)

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