Work

Terahertz Sensing of Thin Poly(ethylene Terephthalate) Film Thickness Using a Metallic Mesh

Year: 2009

Type: article

Abstract: A metallic mesh, i.e., a metallic thin film with regularly spaced openings, works as a band-pass filter in the terahertz region. The filter's transmittance is far higher than the open-area ratio and its transmission spectrum is affected by the index of refraction in and above the openings. Therefore, metallic-mesh films can be used as high-sensitivity sensing or imaging conduits if samples adhere to the metal surface. Here, we report on our success in detecting 1-µm-thickness differences in poly(ethylene terephthalate) (PET) films and recording two-dimensional (2D) images using metallic-mesh sensing and imaging applications.

Source: Applied Physics Express

DOI: 10.1143/apex.2.012301

Authors: Shigeki Yoshida, Eiji Kato, Koji Suizu, Yoichi Nakagomi, Yuichi Ogawa, Kodo Kawase

Institutions: Nagoya University, Advantest (Japan), Tohoku University, RIKEN

Language: English

Topic: Terahertz technology and applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: Ministry of Education, Culture, Sports, Science and Technology

OpenAlex ID: W1969091702

FWCI: 2.595

Cites: 6

Cited by: 31

Related to: 10