Hits:

Indexed by:期刊论文

Date of Publication:2018-09-01

Journal:MEASUREMENT

Included Journals:SCIE

Volume:125

Page Number:371-376

ISSN No.:0263-2241

Key Words:Portablemicroscope; FOA; preAL-FOA; postAL-FOA; High-resolution

Abstract:A portable high-resolution microscope based on combination of fiber-optic array (FOA) and pre-amplification lens, which can overcome the magnification limit of FOA, was developed. By employing the amplification lens at the small-end of the FOA, the resolution was improved from 4.4 mu m to 1.0 mu m over a field of view (FOV) of 140 mu m x 100 mu m without using any algorithm processing, and the distortion only slightly increases from 0.13% to 0.19%. The distortion is still lower than that of normal lens-based microscopy. Moreover, the combination methods of the amplification lens and FOA were investigated, which including only FOA, the pre-amplification lens at the small-end of the FOA (termed preAL-FOA) and the post-amplification lens at the big-end of FOA (termed postAL-FOA). The result proved the best resolution was achieved by using the preAL-FOA This microscopy is suitable for real-time monitoring of cells in microfluidic systems.