ArF EXCIMER LASER‐INDUCED BUBBLE FORMATION DURING IRRADIATION OF NaCl SOLUTIONS

Igor Turovets; Daniel Palanker; Aaron Lewis

doi:10.1111/j.1751-1097.1994.tb05125.x

ArF EXCIMER LASER‐INDUCED BUBBLE FORMATION DURING IRRADIATION OF NaCl SOLUTIONS

Igor Turovets^*, Daniel Palanker, Aaron Lewis

^*Corresponding author for this work

The Institute of Applied Physics

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Abstract During application of the 193 nm excimer laser to vitreoretinal surgery, very deep cutting of the retina of about 100 μm/pulse was detected at the energy fluence in the range of 0.25–0.35 J/cm²/pulse. At the surface of the ablating tip insoluble bubbles were observed during the irradiation. In this paper we study production of these bubbles in aqueous solutions of sodium chloride. The yield of gaseous photoproducts was measured as a function of NaCl concentration and energy fluence. At concentrations of 100 g/L powerful water vapor bubbles and shock waves were observed. A mechanism of soft tissue cutting by the 193 nm laser in highly absorbing liquid media is suggested that explains the features of vitreoretinal ablation with this system: (1) the high cutting depth when the tip touches the tissue and (2) the absence of cutting when the tip is not in contact with the tissue. The advantages of the ArF laser for microsurgery of internal organs are discussed.

Original language	English
Pages (from-to)	412-414
Number of pages	3
Journal	Photochemistry and Photobiology
Volume	60
Issue number	5
DOIs	https://doi.org/10.1111/j.1751-1097.1994.tb05125.x
State	Published - Nov 1994

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title = "ArF EXCIMER LASER‐INDUCED BUBBLE FORMATION DURING IRRADIATION OF NaCl SOLUTIONS",

abstract = "Abstract During application of the 193 nm excimer laser to vitreoretinal surgery, very deep cutting of the retina of about 100 μm/pulse was detected at the energy fluence in the range of 0.25–0.35 J/cm2/pulse. At the surface of the ablating tip insoluble bubbles were observed during the irradiation. In this paper we study production of these bubbles in aqueous solutions of sodium chloride. The yield of gaseous photoproducts was measured as a function of NaCl concentration and energy fluence. At concentrations of 100 g/L powerful water vapor bubbles and shock waves were observed. A mechanism of soft tissue cutting by the 193 nm laser in highly absorbing liquid media is suggested that explains the features of vitreoretinal ablation with this system: (1) the high cutting depth when the tip touches the tissue and (2) the absence of cutting when the tip is not in contact with the tissue. The advantages of the ArF laser for microsurgery of internal organs are discussed.",

author = "Igor Turovets and Daniel Palanker and Aaron Lewis",

year = "1994",

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doi = "10.1111/j.1751-1097.1994.tb05125.x",

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AU - Palanker, Daniel

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N2 - Abstract During application of the 193 nm excimer laser to vitreoretinal surgery, very deep cutting of the retina of about 100 μm/pulse was detected at the energy fluence in the range of 0.25–0.35 J/cm2/pulse. At the surface of the ablating tip insoluble bubbles were observed during the irradiation. In this paper we study production of these bubbles in aqueous solutions of sodium chloride. The yield of gaseous photoproducts was measured as a function of NaCl concentration and energy fluence. At concentrations of 100 g/L powerful water vapor bubbles and shock waves were observed. A mechanism of soft tissue cutting by the 193 nm laser in highly absorbing liquid media is suggested that explains the features of vitreoretinal ablation with this system: (1) the high cutting depth when the tip touches the tissue and (2) the absence of cutting when the tip is not in contact with the tissue. The advantages of the ArF laser for microsurgery of internal organs are discussed.

AB - Abstract During application of the 193 nm excimer laser to vitreoretinal surgery, very deep cutting of the retina of about 100 μm/pulse was detected at the energy fluence in the range of 0.25–0.35 J/cm2/pulse. At the surface of the ablating tip insoluble bubbles were observed during the irradiation. In this paper we study production of these bubbles in aqueous solutions of sodium chloride. The yield of gaseous photoproducts was measured as a function of NaCl concentration and energy fluence. At concentrations of 100 g/L powerful water vapor bubbles and shock waves were observed. A mechanism of soft tissue cutting by the 193 nm laser in highly absorbing liquid media is suggested that explains the features of vitreoretinal ablation with this system: (1) the high cutting depth when the tip touches the tissue and (2) the absence of cutting when the tip is not in contact with the tissue. The advantages of the ArF laser for microsurgery of internal organs are discussed.

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ArF EXCIMER LASER‐INDUCED BUBBLE FORMATION DURING IRRADIATION OF NaCl SOLUTIONS

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