학술논문

Full-Field Hyperspectral Imaging of a Painting in the Mid-Infrared
Document Type
Conference
Source
2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2023 Conference on. :1-1 Jun, 2023
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Engineering Profession
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Spectroscopy
Fourier transforms
Instruments
Imaging
Ink
Pigments
Throughput
Language
ISSN
2833-1052
Abstract
Hyperspectral imaging (HSI) offers per-pixel spectroscopy of a scene. Applications in cultural heritage using visible- and near-infrared sources have seen analyses of pigments, tapestries, inks, and films [1–4]. Mid-infrared (MIR) spectroscopy can be utilized to identify molecules as this photon energy range (fingerprint region) includes molecular transition energies. For paintings, HSI can achieve non-invasive insights into material distribution and degradation mechanisms [5]. Here, an HSI analysis of the painting ‘Uplands in Lome’ (Acc. No.: GLAHA:43427) by David Young Cameron (1865–1945) is demonstrated in the 700–1400 cm −1 bandwidth using an imaging Fourier transform spectrometer (IFTS). IFTS in the MIR has potential as a valuable spectroscopic instrument due to the characteristics of FTS for broadband high-resolution detection with high throughput but has not been fully explored as the detection instruments are often costly and have complicated cooling requirements.