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Title: CO{sub 2} Laser Ablation Area Scaling And Redeposition On Flat Polyoxymethylene Targets

Abstract

One of the remaining unknown subjects of laser propulsion involves whether special benefits or challenges exist for applying laser ablation propulsion to targets with particularly large or small spot areas. This subject is of high importance for a wide range of topics ranging from laser removal of space debris to micropropulsion for laser propulsion vehicles. Analysis is complex since different ablation phenomena are dominant between atmosphere and vacuum conditions. Progress has also been impeded by the difficulty of setting control parameters (particularly fluence) constant while the spot area is adjusted. It is also usually difficult for one group to address small- and large-area effects using a single high-power laser system. Recent collaborative experiments on laser ablation area scaling at several institutions, using 100-J class and 10-J class CO{sub 2} lasers, have advanced the understanding of laser propulsion area scaling. The spot area-dependence of laser propulsion parameters has been investigated over an area range covering approximately 0.05-50 cm{sup 2} at low fluence of about 0.6 J/cm{sup 2}. The experiments were conducted well below the threshold for plasma formation, and provide an estimate of the ablation threshold for CO{sub 2} laser ablation of POM.

Authors:
 [1]; ;  [2]; ;  [3]; ; ;  [4];  [5]
  1. Micro-Nano Global Center of Excellence, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan 464-8603 (Japan)
  2. German Aerospace Center (DLR)-Institute of Technical Physics, Pfaffenwaldring 38-40, 70569 Stuttgart (Germany)
  3. Department of Mechanical Science and Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan 464-8603 (Japan)
  4. Department of Aerospace Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan 464-8603 (Japan)
  5. Institute of Space Systems (IRS), University of Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart (Germany)
Publication Date:
OSTI Identifier:
21426602
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1278; Journal Issue: 1; Conference: International symposium on high power laser ablation 2010, Santa Fe, NM (United States), 18-22 Apr 2010; Other Information: DOI: 10.1063/1.3507144; (c) 2010 American Institute of Physics; Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; ABSORPTION; CARBON DIOXIDE LASERS; CARBON MONOXIDE; COMPUTERIZED SIMULATION; HYDRODYNAMICS; LASER TARGETS; LASER-PRODUCED PLASMA; OPTICAL MICROSCOPY; PROPULSION; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; FLUID MECHANICS; GAS LASERS; LASERS; MECHANICS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PLASMA; SIMULATION; SORPTION; TARGETS

Citation Formats

Sinko, John E., Scharring, Stefan, Eckel, Hans-Albert, Tsukiyama, Yosuke, Umehara, Noritsugu, Ichihashi, Katsuhiro, Ogita, Naoya, Sasoh, Akihiro, and Roeser, Hans-Peter. CO{sub 2} Laser Ablation Area Scaling And Redeposition On Flat Polyoxymethylene Targets. United States: N. p., 2010. Web. doi:10.1063/1.3507144.
Sinko, John E., Scharring, Stefan, Eckel, Hans-Albert, Tsukiyama, Yosuke, Umehara, Noritsugu, Ichihashi, Katsuhiro, Ogita, Naoya, Sasoh, Akihiro, & Roeser, Hans-Peter. CO{sub 2} Laser Ablation Area Scaling And Redeposition On Flat Polyoxymethylene Targets. United States. doi:10.1063/1.3507144.
Sinko, John E., Scharring, Stefan, Eckel, Hans-Albert, Tsukiyama, Yosuke, Umehara, Noritsugu, Ichihashi, Katsuhiro, Ogita, Naoya, Sasoh, Akihiro, and Roeser, Hans-Peter. Fri . "CO{sub 2} Laser Ablation Area Scaling And Redeposition On Flat Polyoxymethylene Targets". United States. doi:10.1063/1.3507144.
@article{osti_21426602,
title = {CO{sub 2} Laser Ablation Area Scaling And Redeposition On Flat Polyoxymethylene Targets},
author = {Sinko, John E. and Scharring, Stefan and Eckel, Hans-Albert and Tsukiyama, Yosuke and Umehara, Noritsugu and Ichihashi, Katsuhiro and Ogita, Naoya and Sasoh, Akihiro and Roeser, Hans-Peter},
abstractNote = {One of the remaining unknown subjects of laser propulsion involves whether special benefits or challenges exist for applying laser ablation propulsion to targets with particularly large or small spot areas. This subject is of high importance for a wide range of topics ranging from laser removal of space debris to micropropulsion for laser propulsion vehicles. Analysis is complex since different ablation phenomena are dominant between atmosphere and vacuum conditions. Progress has also been impeded by the difficulty of setting control parameters (particularly fluence) constant while the spot area is adjusted. It is also usually difficult for one group to address small- and large-area effects using a single high-power laser system. Recent collaborative experiments on laser ablation area scaling at several institutions, using 100-J class and 10-J class CO{sub 2} lasers, have advanced the understanding of laser propulsion area scaling. The spot area-dependence of laser propulsion parameters has been investigated over an area range covering approximately 0.05-50 cm{sup 2} at low fluence of about 0.6 J/cm{sup 2}. The experiments were conducted well below the threshold for plasma formation, and provide an estimate of the ablation threshold for CO{sub 2} laser ablation of POM.},
doi = {10.1063/1.3507144},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1278,
place = {United States},
year = {2010},
month = {10}
}