Scan-less hyperspectral dual-comb single-pixel-imaging in both amplitude and phase
Abstract
We have developed a hyperspectral imaging scheme that involves a combination of dual-comb spectroscopy and Hadamard-transform-based single-pixel imaging. The scheme enables us to obtain 12,000 hyperspectral images of amplitude and phase at a spatial resolution of 46 um without mechanical scanning. The spectral resolution is 20 MHz, as determined by the linewidth of a single comb mode, and the spectral interval is 100 MHz over a spectral range of 1.2 THz centred at 191.5 THz. As an initial demonstration of our scheme, we obtained spectroscopic images of a standard test chart through an etalon plate. The thickness of an absorptive chromium-coated layer on a float-glass substrate was determined to be 70 nm from the hyperspectral phase images in the near-infrared wavelength region.
Cite
@article{arxiv.1705.02428,
title = {Scan-less hyperspectral dual-comb single-pixel-imaging in both amplitude and phase},
author = {Kyuki Shibuya and Takeo Minamikawa and Yasuhiro Mizutani and Hirotsugu Yamamoto and Kaoru Minoshima and Takeshi Yasui and Tetsuo Iwata},
journal= {arXiv preprint arXiv:1705.02428},
year = {2017}
}
Comments
19 pages, 6figures