Journal papers
Joseph D. Malone; Neerja Aggarwal; Laura Waller; Audrey K. Bowden
DiffuserSpec: spectroscopy with Scotch tape Journal Article
In: Opt. Lett., vol. 48, no. 2, pp. 323–326, 2023.
Abstract | Links | BibTeX | Tags: Near infrared radiation; Optical components; Reconstruction algorithms; Speckle patterns; Spectrometers; Spectroscopy
@article{Malone:23,
title = {DiffuserSpec: spectroscopy with Scotch tape},
author = {Joseph D. Malone and Neerja Aggarwal and Laura Waller and Audrey K. Bowden},
url = {https://opg.optica.org/ol/abstract.cfm?URI=ol-48-2-323},
doi = {10.1364/OL.476472},
year = {2023},
date = {2023-01-01},
journal = {Opt. Lett.},
volume = {48},
number = {2},
pages = {323--326},
publisher = {Optica Publishing Group},
abstract = {Computational spectroscopy breaks the inherent one-to-one spatial-to-spectral pixel mapping of traditional spectrometers by multiplexing spectral data over a given sensor region. Most computational spectrometers require components that are complex to design, fabricate, or both. DiffuserSpec is a simple computational spectrometer that uses the inherent spectral dispersion of commercially available diffusers to generate speckle patterns that are unique to each wavelength. Using Scotch tape as a diffuser, we demonstrate narrowband and broadband spectral reconstructions with 2-nm spectral resolution over an 85-nm bandwidth in the near-infrared, limited only by the bandwidth of the calibration dataset. We also investigate the effect of spatial sub-sampling of the 2D speckle pattern on resolution performance.},
keywords = {Near infrared radiation; Optical components; Reconstruction algorithms; Speckle patterns; Spectrometers; Spectroscopy},
pubstate = {published},
tppubtype = {article}
}
Computational spectroscopy breaks the inherent one-to-one spatial-to-spectral pixel mapping of traditional spectrometers by multiplexing spectral data over a given sensor region. Most computational spectrometers require components that are complex to design, fabricate, or both. DiffuserSpec is a simple computational spectrometer that uses the inherent spectral dispersion of commercially available diffusers to generate speckle patterns that are unique to each wavelength. Using Scotch tape as a diffuser, we demonstrate narrowband and broadband spectral reconstructions with 2-nm spectral resolution over an 85-nm bandwidth in the near-infrared, limited only by the bandwidth of the calibration dataset. We also investigate the effect of spatial sub-sampling of the 2D speckle pattern on resolution performance.