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Title:
TERAHERTZ NEAR-FIELD IMAGING PROBE AND TERAHERTZ NEAR-FIELD IMAGING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/205759
Kind Code:
A1
Abstract:
A terahertz near-field imaging probe and a terahertz near-field imaging system. The terahertz near-field imaging probe comprises a Sommerfeld line waveguide end (110) for coupling and transmitting a terahertz wave with radial polarisation, and a probe tip (120) integrally formed with the Sommerfeld line waveguide end (110). The probe tip (120) is used for focusing the terahertz wave at a near field of the probe tip (120) so that the terahertz wave carries information about a sample to be detected and reflects the terahertz wave carrying the information about the sample to be detected to the Sommerfeld line waveguide end (110). The terahertz wave transmitted in the Sommerfeld line waveguide end (110) is referred to as a Sommerfeld wave, has an ultra-large bandwidth (0.1 THz - 5 THz), and has the properties of ultra-low loss and ultra-low chromatic dispersion within the range of the large bandwidth. The probe tip (120) can focus the terahertz wave (the Sommerfeld wave) such that same is extremely small by focusing the Sommerfeld wave freely transmitted at the Sommerfeld line waveguide end (110) at the near field of the probe tip (120), and breaks through a diffraction limit in a near-field range to realise super-resolution imaging.

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Inventors:
ZHENG ZHU (CN)
YANG BIN (CN)
DING QING (CN)
Application Number:
PCT/CN2018/080583
Publication Date:
November 15, 2018
Filing Date:
March 27, 2018
Export Citation:
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Assignee:
SHENZHEN INST TERAHERTZ TECH & INNOVATION (CN)
CHINA COMMUNICATION TECH CO LTD (CN)
International Classes:
G02B19/00; G01N21/01; G01N21/3581
Domestic Patent References:
WO2011134593A12011-11-03
Foreign References:
CN104568818A2015-04-29
US20070216422A12007-09-20
CN107144950A2017-09-08
CN105846070A2016-08-10
Other References:
WANG, ZHIHUI: "Characterization of Novel Terahertz Guided Wave Structures", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE , CHINA DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, vol. 12, 15 December 2012 (2012-12-15), pages 32 - 34, 43, ISSN: 1674-022X
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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