A comparison of terahertz optical constants and diffusion coefficients of tissue immersion optical clearing agents

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A comparison of terahertz optical constants and diffusion coefficients of tissue immersion optical clearing agents	1 MB	Adobe Acrobat PDF	Read	Download
DOI Доступ к ресурсу на сайте издателя			10.1117/12.2526168

Title: A comparison of terahertz optical constants and diffusion coefficients of tissue immersion optical clearing agents
Creator: Musina, Guzel R.
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Gavdush, Arsenii A.
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Tuchina, Daria K.
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Dolganova, Irina N.
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Komandin, Gennady A.
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Chuchupal, Sergey V.
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Smolyanskaya, Olga A.
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Cherkasova, Olga P.
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Zaytsev, Kirill I.
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Tuchin, Valery V.
Date: 2019
DOI: 10.1117/12.2526168
Description: We performed the transmission-mode terahertz (THz) pulsed spectroscopy of several THz-wave penetration- enhancing agents (PEAs): glycerol, propylene glycol, ethylene glycol, and polyethylene glycol, featuring the molecular weight of 200, 300 and 400. We vacuumized the THz beam path in order to reduce an impact of water vapor on measured data. We reconstructed optical properties and dielectric constants of the abovementioned PEAs in the spectral range of 0.1 to 2.5 THz. We analyzed measured THz optical properties along with the literature data for coefficients of PEAs' diffusion into tissues in order to objectively uncover strength and weaknesses of their use in the immersion optical clearing of tissues at THz frequencies.