Faculty Publications and Other Works -- Mechanical, Aerospace and Biomedical Engineering
Title
Single-shot nanosecond-resolution multiframe passive imaging by multiplexed structured image capture
Source Publication
Optics Express
Document Type
Article
Publication Date
10-17-2018
DOI
10.1364/OE.26.028441
Abstract
The Multiplexed Structured Image Capture (MUSIC) technique is used to demonstrate single-shot multiframe passive imaging, with a nanosecond difference between the resulting images. This technique uses modulation of light from a scene before imaging, in order to encode the target’s temporal evolution into spatial frequency shifts, each of which corresponds to a unique time and results in individual and distinct snapshots. The resulting images correspond to different effective imaging gate times, because of the optical path delays. Computer processing of the multiplexed single-shot image recovers the nanosecond-resolution evolution. The MUSIC technique is used to demonstrate imaging of a laser-induced plasma. Simultaneous single-shot measurements of electron numbers by coherent microwave scattering were obtained and showed good agreement with MUSIC characterization. The MUSIC technique demonstrates spatial modulation of images used for passive imaging. This allows multiple frames to be stacked into a single image. This method could also pave the way for real-time imaging and characterization of ultrafast processes and visualization, as well as general tracking of fast objects.
Recommended Citation
Mark Gragston, Cary Smith, Daniil Kartashov, Mikhail N. Shneider, and Zhili Zhang. "Single-shot nanosecond-resolution multiframe passive imaging by multiplexed structured image capture." Optics Express Vol. 26, Issue 22, pp. 28441-28452 (2018). https://doi.org/10.1364/OE.26.028441
Submission Type
Publisher's Version
Comments
This article was published openly thanks to the University of Tennessee Open Publishing Support Fund.
Licensed under Creative Commons.