Open AccessWavelength-multiplexed digital holography for quantitative phase measurement using quantum dot film
Author(s) -
Sungbin Jeon,
Jae Yong Lee,
Janghyun Cho,
Seunghyun Jang,
Young Joo Kim,
No Cheol Park
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.027305
Subject(s) - optics , digital holography , holography , wavelength , multiplexing , coherence (philosophical gambling strategy) , quantum dot , optical coherence tomography , digital micromirror device , materials science , optoelectronics , physics , computer science , telecommunications , quantum mechanics
We propose an enhanced quantitative three-dimensional measurement system using wavelength-multiplexed digital holography. To simplify the configuration, a dual-peak quantum dot wavelength converter, combined with a blue LED, is adapted as a single low-coherence light source. Rather than a conventional dual-wavelength method, which records and reconstruct the object wave for each wavelength, the proposed system can capture the holograms of two wavelengths simultaneously with fewer acquisitions, simple setup, and low noise. To verify the system's performance, the measurements of the step height sample are presented.