High-precision and low-noise dielectric tensor tomography using a micro-electromechanical system mirror

Author:

Lee Juheon1ORCID,Chae Byung Gyu2ORCID,Kim Hyuneui2,Yoon Min Sung2,Hugonnet Herve1ORCID,Park Yong Keun13ORCID

Affiliation:

1. KAIST Institute for Health Science and Technology

2. Electronics and Telecommunications Research Institute

3. Tomocube Inc.

Abstract

Dielectric tensor tomography is an imaging technique for mapping three-dimensional distributions of dielectric properties in transparent materials. This work introduces an enhanced illumination strategy employing a micro-electromechanical system mirror to achieve high precision and reduced noise in imaging. This illumination approach allows for precise manipulation of light, significantly improving the accuracy of angle control and minimizing diffraction noise compared to traditional beam steering approaches. Our experiments have successfully reconstructed the dielectric properties of liquid crystal droplets, which are known for their anisotropic structures, while demonstrating a notable reduction in the background noise of the images. Additionally, the technique has been applied to more complex samples, revealing its capability to achieve a high signal-to-noise ratio. This development represents a significant step forward in the field of birefringence imaging, offering a powerful tool for detailed study of materials with anisotropic properties.

Funder

National Research Foundation of Korea

Institute for Information and Communications Technology Promotion

Korea Advanced Institute of Science and Technology

Ministry of Science and ICT, South Korea

Publisher

Optica Publishing Group

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Holotomography;Nature Reviews Methods Primers;2024-07-25

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