Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Digital micromirror device-based common-path quantitative phase imaging

Not Accessible

Your library or personal account may give you access

Abstract

We propose a novel common-path quantitative phase imaging (QPI) method based on a digital micromirror device (DMD). The DMD is placed in a plane conjugate to the objective back-aperture plane for the purpose of generating two plane waves that illuminate the sample. A pinhole is used in the detection arm to filter one of the beams after sample to create a reference beam. Additionally, a transmission-type liquid crystal device, placed at the objective back-aperture plane, eliminates the specular reflection noise arising from all the “off” state DMD micromirrors, which is common in all DMD-based illuminations. We have demonstrated high sensitivity QPI, which has a measured spatial and temporal noise of 4.92 nm and 2.16 nm, respectively. Experiments with calibrated polystyrene beads illustrate the desired phase measurement accuracy. In addition, we have measured the dynamic height maps of red blood cell membrane fluctuations, showing the efficacy of the proposed system for live cell imaging. Most importantly, the DMD grants the system convenience in varying the interference fringe period on the camera to easily satisfy the pixel sampling conditions. This feature also alleviates the pinhole alignment complexity. We envision that the proposed DMD-based common-path QPI system will allow for system miniaturization and automation for a broader adaption.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Quantitative phase imaging based on wavefront correction of a digital micromirror device

Jing Hu, Xiwei Xie, and Yibing Shen
Opt. Lett. 45(18) 5036-5039 (2020)

Active illumination using a digital micromirror device for quantitative phase imaging

Seungwoo Shin, Kyoohyun Kim, Jonghee Yoon, and YongKeun Park
Opt. Lett. 40(22) 5407-5410 (2015)

Common-path digital holographic microscopy based on a volume holographic grating for quantitative phase imaging

Chen-Ming Tsai, Sunil Vyas, and Yuan Luo
Opt. Express 32(5) 7919-7930 (2024)

Supplementary Material (1)

NameDescription
Visualization 1: AVI (3436 KB)      Time-lapse video showing the discocyte membrane fluctuations.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved