Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Early Posting

Controlling the transmission of broadband light through scattering media using a digital micromirror device

Rabisankar Samanta and Sushil Mujumdar

Not Accessible

Your library or personal account may give you access

Abstract

Wavefront shaping has emerged as a valuable technique in complex photonics, wherein the various eigenmodes of the disordered medium are selectively excited to control the overall transmission through the medium. The process utilizes active optical devices such as liquid crystal-based spatial light modulators (LC-SLM), deformable mirrors (DM), and digital micromirror devices (DMD). Among these, the latter is preferred for imaging through dynamic scattering media such as living biological tissues due to their high-speed refresh rate and increased resolution. This study employs a genetic algorithm along with binary amplitude modulation generated by a digital micromirror device to spatially and spectrally control the large spectral bandwidth through a scattering medium. We illustrate spatial single-point focusing of broadband light, multipoint focusing of broadband light, and programmable spectral filtering of the same through disordered samples.

© 2023 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Programmable, high-speed, adaptive optics partially confocal multi-spot ophthalmoscope using a digital micromirror device

Soohyun Lee, Stacey S. Choi, Ratheesh K. Meleppat, Robert J. Zawadzki, and Nathan Doble
Opt. Lett. 48(3) 791-794 (2023)

Coded-aperture broadband light field imaging using digital micromirror devices

Jingdan Liu, Charlotte Zaouter, Xianglei Liu, Shunmoogum A. Patten, and Jinyang Liang
Optica 8(2) 139-142 (2021)

Gradient-assisted focusing light through scattering media

Yanyu Zhao, Qiaozhi He, Shuna Li, and Jiamiao Yang
Opt. Lett. 46(7) 1518-1521 (2021)

View More...

Supplementary Material (9)

NameDescription
Supplement 1       This document elaborates on the DMD setup, feedback function for multipoint optimization, and APD based optimization.
Visualization 1       This video shows focusing monochromatic light on a single point through a ground glass diffuser (GGD) using a DMD.
Visualization 2       This video illustrates monochromatic light focusing (multi-point) through a diffuser using a DMD.
Visualization 3       This video illustrates broadband light focusing (single point) through a diffuser using a DMD.
Visualization 4       This video illustrates broadband light focusing (double point) through a diffuser. Here, Eq. S1 is chosen as the feedback function for the GA.
Visualization 5       This video illustrates two-points focusing of the broadband light through a diffuser while the feedback function for the GA is chosen as the mean of the intensities at the target locations.
Visualization 6       This video illustrates single wavelength optimization from a spectral speckle pattern.
Visualization 7       This video illustrates double wavelength optimization from a spectral speckle pattern while the feedback function for the GA is chosen as the mean of the intensities at the target wavelengths.
Visualization 8       This video illustrates double wavelength optimization from a spectral speckle pattern. Here, Eq. S1 is chosen as the feedback function for the GA.

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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 (4)

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
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use