Femtosecond-laser-induced nanocavitation in water: implications for optical breakdown threshold and cell surgery.

by: A Vogel, N Linz, S Freidank, G Paltauf

Physical Review Letters, Vol. 100, No. 3. (25 January 2008)

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Pubmed, Hubmed, http://view.ncbi.nlm.nih.gov/pubmed/18233…

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Abstract

We determined the bubble radius R_(max) for femtosecond optical breakdown in water at 347, 520, and 1040 nm with an unprecedented accuracy (+/-10 nm). At threshold, R_(max) was smaller than the diffraction-limited focus radius and ranged from 190 nm to 320 nm. The increase of R_(max) with laser energy E_(L) is slowest at 347 nm, providing optimum control of cell surgery. Experimental results agree with a model of bubble formation in heated and thermoelastically stretched liquids. Theory predicts a threshold temperature T_(th) approximately equal to 168 degrees C. For T>300 degrees C, a phase explosion sets in, and R_(max) increases rapidly with E_(L).

@article{citeulike:2642287, abstract = {We determined the bubble radius R\_(max) for femtosecond optical breakdown in water at 347, 520, and 1040 nm with an unprecedented accuracy (+/-10 nm). At threshold, R\_(max) was smaller than the diffraction-limited focus radius and ranged from 190 nm to 320 nm. The increase of R\_(max) with laser energy E\_(L) is slowest at 347 nm, providing optimum control of cell surgery. Experimental results agree with a model of bubble formation in heated and thermoelastically stretched liquids. Theory predicts a threshold temperature T\_(th) approximately equal to 168 degrees C. For T>300 degrees C, a phase explosion sets in, and R\_(max) increases rapidly with E\_(L).}, address = {Institute of Biomedical Optics, University of L\"{u}beck, Peter-Monnik-Weg 4, L\"{u}beck, Germany. vogel@bmo.uni-luebeck.de}, author = {Vogel, A. and Linz, N. and Freidank, S. and Paltauf, G. }, citeulike-article-id = {2642287}, issn = {0031-9007}, journal = {Physical Review Letters}, keywords = {ablation}, month = {January}, number = {3}, posted-at = {2008-04-08 17:51:51}, priority = {2}, title = {Femtosecond-laser-induced nanocavitation in water: implications for optical breakdown threshold and cell surgery.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/18233040}, volume = {100}, year = {2008} }

RIS record

TY - JOUR ID - citeulike:2642287 L3 - citeulike-article-id:2642287 TI - Femtosecond-laser-induced nanocavitation in water: implications for optical breakdown threshold and cell surgery. JF - Physical Review Letters VL - 100 IS - 3 AD - Institute of Biomedical Optics, University of Lübeck, Peter-Monnik-Weg 4, Lübeck, Germany. vogel@bmo.uni-luebeck.de SN - 0031-9007 N2 - We determined the bubble radius R_(max) for femtosecond optical breakdown in water at 347, 520, and 1040 nm with an unprecedented accuracy (+/-10 nm). At threshold, R_(max) was smaller than the diffraction-limited focus radius and ranged from 190 nm to 320 nm. The increase of R_(max) with laser energy E_(L) is slowest at 347 nm, providing optimum control of cell surgery. Experimental results agree with a model of bubble formation in heated and thermoelastically stretched liquids. Theory predicts a threshold temperature T_(th) approximately equal to 168 degrees C. For T>300 degrees C, a phase explosion sets in, and R_(max) increases rapidly with E_(L). KW - ablation AU - Vogel, A AU - Linz, N AU - Freidank, S AU - Paltauf, G PY - 2008/January/25/ UR - http://view.ncbi.nlm.nih.gov/pubmed/18233040 ER -

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