Affiliation:
1. Colorado State University
2. Lawrence Livermore National Laboratory
Abstract
Spatial frequency modulation imaging (SPIFI) provides a simple
architecture for modulating an extended illumination source that is
compatible with single pixel imaging. We demonstrate wavelength domain
SPIFI (WD-SPIFI) by encoding time-varying spatial frequencies in the
spectral domain that can produce enhanced resolution images, like its
spatial domain counterpart, spatial domain (SD) SPIFI. However,
contrary to SD-SPIFI, WD-SPIFI enables remote delivery by single mode
fiber, which can be attractive for applications where free-space
imaging is not practical. Finally, we demonstrate a cascaded system
incorporating WD-SPIFI in-line with SD-SPIFI enabling single pixel 2D
imaging without any beam or sample scanning.
Funder
Lawrence Livermore National
Laboratory
Air Force Research
Laboratory
DEVCOM Army Research
Laboratory
National Science Foundation
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering