Abstract
Photographic studies of pulsed infrared laser irradition of a pure target illustrate two aspects of mass removal: (1) surface evaporation, and (2) explosive vaporization. A pulsed Erbium: YAG laser provided radiation at a 2.9-μm wavelength for delivery to the target site and triggered a second visible laser (nitrogen/dye laser) for illumination of the target site for photography. A variable time delay between the Er:YAG and dye lasers allowed selection of the time of the photograph (GREQ 1 μs). The photographs distinguish between (1) rapid surface evaporation when the energy deposition achieves high temperatures but does not supply the full enthalpy of vaporization, and (2) explosive vaporization of water when the entire enthalpy of vaporization has been provided by the laser pulse.
| Original language | English (US) |
|---|---|
| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Steven L. Jacques, Abraham Katzir |
| Publisher | Publ by Int Soc for Optical Engineering |
| Pages | 632-667 |
| Number of pages | 36 |
| Volume | 1427 |
| State | Published - 1991 |
| Externally published | Yes |
| Event | Proceedings of Laser-Tissue Interaction II - Los Angeles, CA, USA Duration: Jan 21 1991 → Jan 23 1991 |
Other
| Other | Proceedings of Laser-Tissue Interaction II |
|---|---|
| City | Los Angeles, CA, USA |
| Period | 1/21/91 → 1/23/91 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics
Cite this
Laser-flash photographic studies of Er : YAG laser ablation of water. / Jacques, Steven; Gofstein, Gary.
Proceedings of SPIE - The International Society for Optical Engineering. ed. / Steven L. Jacques; Abraham Katzir. Vol. 1427 Publ by Int Soc for Optical Engineering, 1991. p. 632-667.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Laser-flash photographic studies of Er
T2 - YAG laser ablation of water
AU - Jacques, Steven
AU - Gofstein, Gary
PY - 1991
Y1 - 1991
N2 - Photographic studies of pulsed infrared laser irradition of a pure target illustrate two aspects of mass removal: (1) surface evaporation, and (2) explosive vaporization. A pulsed Erbium: YAG laser provided radiation at a 2.9-μm wavelength for delivery to the target site and triggered a second visible laser (nitrogen/dye laser) for illumination of the target site for photography. A variable time delay between the Er:YAG and dye lasers allowed selection of the time of the photograph (GREQ 1 μs). The photographs distinguish between (1) rapid surface evaporation when the energy deposition achieves high temperatures but does not supply the full enthalpy of vaporization, and (2) explosive vaporization of water when the entire enthalpy of vaporization has been provided by the laser pulse.
AB - Photographic studies of pulsed infrared laser irradition of a pure target illustrate two aspects of mass removal: (1) surface evaporation, and (2) explosive vaporization. A pulsed Erbium: YAG laser provided radiation at a 2.9-μm wavelength for delivery to the target site and triggered a second visible laser (nitrogen/dye laser) for illumination of the target site for photography. A variable time delay between the Er:YAG and dye lasers allowed selection of the time of the photograph (GREQ 1 μs). The photographs distinguish between (1) rapid surface evaporation when the energy deposition achieves high temperatures but does not supply the full enthalpy of vaporization, and (2) explosive vaporization of water when the entire enthalpy of vaporization has been provided by the laser pulse.
UR - http://www.scopus.com/inward/record.url?scp=0025803292&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025803292&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0025803292
VL - 1427
SP - 632
EP - 667
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Jacques, Steven L.
A2 - Katzir, Abraham
PB - Publ by Int Soc for Optical Engineering
ER -