An approach to determine solution properties in micro pipes by near-field microwave microscopy

Yahui Wang; Ziqian Wei; Yujie Chen; Quanxin Zhou; Yubin Gong; Baoqing Zeng; Zhe Wu

doi:10.1088/1361-648X/ac3308

An approach to determine solution properties in micro pipes by near-field microwave microscopy

J Phys Condens Matter. 2021 Nov 11;34(5). doi: 10.1088/1361-648X/ac3308.

Authors

Yahui Wang¹, Ziqian Wei¹, Yujie Chen¹, Quanxin Zhou², Yubin Gong³, Baoqing Zeng³, Zhe Wu²

Affiliations

¹ Glasgow College, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China.
² School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China.
³ School of Electronics Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China.

PMID: 34695817
DOI: 10.1088/1361-648X/ac3308

Abstract

In this article, we propose a quantitative, non-destructive and noninvasive approach to obtain electromagnetic properties of liquid specimens utilizing a home-designed near-field microwave microscopy. The responses of aqueous solutions can be acquired with varying concentrations, types (CaCl₂, MgCl₂, KCl and NaCl) and tip-sample distances. An electromagnetic simulation model also successfully predicts the behaviors of saline samples. For a certain type of solutions with varying concentrations, the results are concaves with different bottoms, and the symmetric graphs of concave extractions can clearly identify different specimens. Moreover, we obtain electromagnetic images of capillaries with various saline solutions, as well as a Photinia × fraseri Dress leaf.

Keywords: leaf vein; microwave imaging; near-field microwave microscopy; salt solutions.