Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Jake M. Charsley"'
Autor:
Michela Botticelli, Valentina Risdonne, Tess Visser, Christina Young, Margaret J. Smith, Jake M. Charsley, Marius Rutkauskas, Yoann Altmann, Derryck T. Reid
Publikováno v:
The European Physical Journal Plus. 138
Imaging spectroscopy has been developed in the last two decades in the visible and infrared spectral range for detecting pigments and binders on paintings. The near-infrared (NIR) region has been proved effective for the discrimination of lipids and
Autor:
Jake M. Charsley, Marius Rutkauskas, Yoann Altmann, Valentina Risdonne, Michela Botticelli, Margaret J. Smith, Christina R. T. Young, Derryck T. Reid
Publikováno v:
Optics express. 30(10)
Spectrally-resolved imaging provides a spectrum for each pixel of an image that, in the mid-infrared, can enable its chemical composition to be mapped by exploiting the correlation between spectroscopic features and specific molecular groups. The com
Autor:
Jake M. Charsley, Marius Rutkauskas, Yoann Altmann, Michela Botticelli, Valentina Risdonne, Margaret Smith, Tess Visser, Christina R.T. Young, Derryck T. Reid
Publikováno v:
Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP).
Full-field imaging for non-invasive spectral analysis of pigments in painted cultural heritage is demonstrated from 1400–700cm-1. Acquisition without compressive sensing takes 4 minutes, with a further 2 minutes needed for spectral reconstruction a
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate compressive spectroscopy at 3.3 µm by projecting a sparse set of spectra shaped by a digital micromirror device. Acquisition at 280 Hz is achieved. Reconstructed spectroscopy shows good agreement with ground truth measurements.
Publikováno v:
Optics express. 25(16)
A multi-GHz frequency comb (astrocomb) is typically realized by filtering modes of a sub-GHz frequency comb (source comb) in a Fabry-Pérot etalon, which can lead to ambiguities in determining which subset of source comb modes has been filtered. Here
Publikováno v:
Optics express. 25(13)
A new regime of precision radial-velocity measurements in the search for Earth-like exoplanets is being facilitated by high-resolution spectrographs calibrated by laser frequency combs. Here we review recent advances in the development of astrocomb t