Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm

Dirk Theisen-Kunde; Veit Danicke; Mario Wendt; Ralf Brinkmann

doi:10.1007/978-3-540-89208-3_533

Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm

Dirk Theisen-Kunde^*, Veit Danicke, Mario Wendt, Ralf Brinkmann

^*Corresponding author for this work

21 Citations (Scopus)

Abstract

In this study the absorption coefficient of water at different temperatures was investigated for wavelengths at 1920 nm and 1940 nm respectively. The laser radiation was transmitted via a quartz fibre (600 μm core) into a thermal isolated and heated water filled cuvette. At different temperatures the transmittance of water was measured for both wavelengths. According to Beer-Lambert's law the absorption coefficient α was calculated. Absorption coefficient α of water for 1940 nm decreases from 129.2±1.7 /cm² @ 20 °C to 118.7±1.9 /cm² @ 80 °C, while for 1920 nm α increases from 126.4±1.6 /cm² @ 20 °C to 142.5±1.6 /cm² @ 80 °C. For 35 °C the water absorption coefficient is 127.3±1.6 /cm² for 1940 nm and 132.5±1.9 /cm² for 1920 nm. For both wavelengths in vivo investigations for ablation efficiency are planned to answer the question, if these differences are significant for laser surgery.

Original language	English
Title of host publication	4th European Conference of the International Federation for Medical and Biological Engineering
Editors	Jos Vander Sloten, Pascal Verdonck, Marc Nyssen, Jens Haueisen
Number of pages	2
Volume	22
Place of Publication	Berlin, Heidelberg
Publisher	Springer-Verlag Berlin Heidelberg
Publication date	2008
Pages	2228-2229
ISBN (Print)	978-3-540-89207-6
ISBN (Electronic)	978-3-540-89208-3
DOIs	https://doi.org/10.1007/978-3-540-89208-3_533
Publication status	Published - 2008
Event	4th European Conference of the International Federation for Medical and Biological Engineering - Antwerp, Belgium Duration: 23.11.2008 → 27.11.2008 Conference number: 81647

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Academic Focus: Biomedical Engineering

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10.1007/978-3-540-89208-3_533

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Theisen-Kunde, D., Danicke, V., Wendt, M., & Brinkmann, R. (2008). Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm. In J. Vander Sloten, P. Verdonck, M. Nyssen, & J. Haueisen (Eds.), 4th European Conference of the International Federation for Medical and Biological Engineering (Vol. 22, pp. 2228-2229). (IFMBE Proceedings; Vol. 22). Springer-Verlag Berlin Heidelberg. https://doi.org/10.1007/978-3-540-89208-3_533

Theisen-Kunde, Dirk ; Danicke, Veit ; Wendt, Mario et al. / Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm. 4th European Conference of the International Federation for Medical and Biological Engineering. editor / Jos Vander Sloten ; Pascal Verdonck ; Marc Nyssen ; Jens Haueisen. Vol. 22 Berlin, Heidelberg : Springer-Verlag Berlin Heidelberg, 2008. pp. 2228-2229 (IFMBE Proceedings).

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title = "Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm",

abstract = "In this study the absorption coefficient of water at different temperatures was investigated for wavelengths at 1920 nm and 1940 nm respectively. The laser radiation was transmitted via a quartz fibre (600 μm core) into a thermal isolated and heated water filled cuvette. At different temperatures the transmittance of water was measured for both wavelengths. According to Beer-Lambert's law the absorption coefficient α was calculated. Absorption coefficient α of water for 1940 nm decreases from 129.2±1.7 /cm2 @ 20 °C to 118.7±1.9 /cm2 @ 80 °C, while for 1920 nm α increases from 126.4±1.6 /cm2 @ 20 °C to 142.5±1.6 /cm2 @ 80 °C. For 35 °C the water absorption coefficient is 127.3±1.6 /cm2 for 1940 nm and 132.5±1.9 /cm2 for 1920 nm. For both wavelengths in vivo investigations for ablation efficiency are planned to answer the question, if these differences are significant for laser surgery.",

author = "Dirk Theisen-Kunde and Veit Danicke and Mario Wendt and Ralf Brinkmann",

note = "Copyright: Copyright 2010 Elsevier B.V., All rights reserved.; 4th European Conference of the International Federation for Medical and Biological Engineering, ECIFMBE 2008 ; Conference date: 23-11-2008 Through 27-11-2008",

year = "2008",

doi = "10.1007/978-3-540-89208-3\_533",

language = "English",

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Theisen-Kunde, D , Danicke, V, Wendt, M & Brinkmann, R 2008, Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm. in J Vander Sloten, P Verdonck, M Nyssen & J Haueisen (eds), 4th European Conference of the International Federation for Medical and Biological Engineering. vol. 22, IFMBE Proceedings, vol. 22, Springer-Verlag Berlin Heidelberg, Berlin, Heidelberg, pp. 2228-2229, 4th European Conference of the International Federation for Medical and Biological Engineering, Antwerp, Belgium, 23.11.08. https://doi.org/10.1007/978-3-540-89208-3_533

Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm. / Theisen-Kunde, Dirk ; Danicke, Veit; Wendt, Mario et al.
4th European Conference of the International Federation for Medical and Biological Engineering. ed. / Jos Vander Sloten; Pascal Verdonck; Marc Nyssen; Jens Haueisen. Vol. 22 Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2008. p. 2228-2229 (IFMBE Proceedings; Vol. 22).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

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T1 - Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm

AU - Theisen-Kunde, Dirk

AU - Danicke, Veit

AU - Wendt, Mario

AU - Brinkmann, Ralf

N1 - Conference code: 81647

PY - 2008

Y1 - 2008

N2 - In this study the absorption coefficient of water at different temperatures was investigated for wavelengths at 1920 nm and 1940 nm respectively. The laser radiation was transmitted via a quartz fibre (600 μm core) into a thermal isolated and heated water filled cuvette. At different temperatures the transmittance of water was measured for both wavelengths. According to Beer-Lambert's law the absorption coefficient α was calculated. Absorption coefficient α of water for 1940 nm decreases from 129.2±1.7 /cm2 @ 20 °C to 118.7±1.9 /cm2 @ 80 °C, while for 1920 nm α increases from 126.4±1.6 /cm2 @ 20 °C to 142.5±1.6 /cm2 @ 80 °C. For 35 °C the water absorption coefficient is 127.3±1.6 /cm2 for 1940 nm and 132.5±1.9 /cm2 for 1920 nm. For both wavelengths in vivo investigations for ablation efficiency are planned to answer the question, if these differences are significant for laser surgery.

AB - In this study the absorption coefficient of water at different temperatures was investigated for wavelengths at 1920 nm and 1940 nm respectively. The laser radiation was transmitted via a quartz fibre (600 μm core) into a thermal isolated and heated water filled cuvette. At different temperatures the transmittance of water was measured for both wavelengths. According to Beer-Lambert's law the absorption coefficient α was calculated. Absorption coefficient α of water for 1940 nm decreases from 129.2±1.7 /cm2 @ 20 °C to 118.7±1.9 /cm2 @ 80 °C, while for 1920 nm α increases from 126.4±1.6 /cm2 @ 20 °C to 142.5±1.6 /cm2 @ 80 °C. For 35 °C the water absorption coefficient is 127.3±1.6 /cm2 for 1940 nm and 132.5±1.9 /cm2 for 1920 nm. For both wavelengths in vivo investigations for ablation efficiency are planned to answer the question, if these differences are significant for laser surgery.

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DO - 10.1007/978-3-540-89208-3_533

M3 - Conference contribution

SN - 978-3-540-89207-6

VL - 22

T3 - IFMBE Proceedings

SP - 2228

EP - 2229

BT - 4th European Conference of the International Federation for Medical and Biological Engineering

A2 - Vander Sloten, Jos

A2 - Verdonck, Pascal

A2 - Nyssen, Marc

A2 - Haueisen, Jens

PB - Springer-Verlag Berlin Heidelberg

CY - Berlin, Heidelberg

T2 - 4th European Conference of the International Federation for Medical and Biological Engineering

Y2 - 23 November 2008 through 27 November 2008

ER -

Theisen-Kunde D , Danicke V, Wendt M, Brinkmann R. Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm. In Vander Sloten J, Verdonck P, Nyssen M, Haueisen J, editors, 4th European Conference of the International Federation for Medical and Biological Engineering. Vol. 22. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg. 2008. p. 2228-2229. (IFMBE Proceedings). doi: 10.1007/978-3-540-89208-3_533

Temperature dependence of water absorption for wavelengths at 1920 nm and 1940 nm

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