You are viewing a javascript disabled version of the site. Please enable Javascript for this site to function properly.
Go to headerGo to navigationGo to searchGo to contentsGo to footer
In content section. Select this link to jump to navigation

Lateral resolution enhancement using programmable phase modulator in optical coherence tomography

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 4th International Conference on Biomedical Engineering and Biotechnology, 18–21 August 2015, Shanghai, China

Guest editors: Feng Liu, Dong-Hoon Lee, Ricardo Lagoa and Sandeep Kumar

Article type: Research Article

Authors: Shirazi, Muhammad Faizana | Cho, Nam Hyuna | Jung, Woonggyub | Kim, Jeehyuna; *

Affiliations: [a] School of Electronics Engineering, Kyungpook National University, Daegu,702-701, Korea | [b] School of Nano-Bioscience & Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan, Korea

Correspondence: [*] Address for correspondence: Jeehyun Kim, School of Electronics Engineering, Kyungpook National University, Daegu 702-701, Korea. Tel.: 82-53-950-7221; Fax: 82-53-950-7221; E-mail: [email protected].

Keywords: OCT, lateral resolution, aberration correction, adaptive optics, PAL-SLM

DOI: 10.3233/BME-151445

Journal: Bio-Medical Materials and Engineering, vol. 26, no. s1, pp. S1465-S1471, 2015

Published: 2015
Get PDF open access

Adaptive optics plays an important role in the correction of high-order aberrations to enhance lateral resolution. An OCT system coupled with a programmable phase modulator is designed to verify lateral resolution improvement. The Hamamatsu high-resolution, non-pixelized, optically addressed light modulator (PAL-SLM) PPM X7550 series is used to correct aberrations, utilizing a simple method based on phase information from OCT images. The advantages of this method are its high simplicity and low cost. A raster scanning technique is adopted to scan samples covered with scattering suspension. Metal lines covered with scattering suspension are imaged, and a respective correction is applied to remove the aberration. Results demonstrate an improvement in lateral resolution on metal grid samples.

Show more