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Title: Applying New Laser Interaction Models to the ORION Problem

Abstract

Previously, Phipps, et al. developed a model that permitted laser ablation impulse predictions within a factor of two over an extremely broad range of pulse durations and wavelengths in the plasma regime. This model lacked the ability to predict the intensity for optimum impulse generation. For the lower-intensity vapor regime, below the plasma transition, Sinko developed a useful, fluence-dependent model which predicts impulse delivered for pulsed lasers on polymers at a specific wavelength. Phipps subsequently developed an alternate model which treats elemental solids in the vapor regime, that only requires knowledge of basic material parameters and vapor pressure vs. temperature data. These data, except for optical absorptivity, are wavelength-independent. A simple technique combines either vapor model with the plasma model to form a complete model that moves smoothly through the vapor to plasma transition. In this paper, we apply these models to show the optimum momentum coupling fluence on target, at the transition from the vapor to the plasma regimes, for aluminum (a typical debris material) and polyoxymethylene (representing polymeric debris). The application of this work is the ORION laser space debris mitigation concept. This is an improvement over previous work, in which this optimum was only estimated from themore » plasma ignition threshold. We present calculations showing how impulse delivered to debris targets in the ORION concept varies with pulse duration, at an optimum fluence determined by nonlinear optical effects in the Earth's atmosphere.« less

Authors:
 [1];  [2]
  1. Photonic Associates, LLC, 200A Ojo de la Vaca Road, Santa Fe NM 87508 (United States)
  2. GCOE, Nagoya University, Furo-cho, Nagoya, Aichi (Japan)
Publication Date:
OSTI Identifier:
21426600
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: 10.1063/1.3507138; (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; ABSORPTIVITY; ALUMINIUM; EARTH ATMOSPHERE; LASER-PRODUCED PLASMA; LASERS; NONLINEAR OPTICS; NONLINEAR PROBLEMS; POLYMERS; PULSES; SOLIDS; VAPOR PRESSURE; VAPORS; VISIBLE RADIATION; WAVELENGTHS; ELECTROMAGNETIC RADIATION; ELEMENTS; FLUIDS; GASES; METALS; OPTICS; PHYSICAL PROPERTIES; PLASMA; RADIATIONS; SORPTION; SURFACE PROPERTIES; THERMODYNAMIC PROPERTIES

Citation Formats

Phipps, Claude, and Sinko, John. Applying New Laser Interaction Models to the ORION Problem. United States: N. p., 2010. Web. doi:10.1063/1.3507138.
Phipps, Claude, & Sinko, John. Applying New Laser Interaction Models to the ORION Problem. United States. doi:10.1063/1.3507138.
Phipps, Claude, and Sinko, John. Fri . "Applying New Laser Interaction Models to the ORION Problem". United States. doi:10.1063/1.3507138.
@article{osti_21426600,
title = {Applying New Laser Interaction Models to the ORION Problem},
author = {Phipps, Claude and Sinko, John},
abstractNote = {Previously, Phipps, et al. developed a model that permitted laser ablation impulse predictions within a factor of two over an extremely broad range of pulse durations and wavelengths in the plasma regime. This model lacked the ability to predict the intensity for optimum impulse generation. For the lower-intensity vapor regime, below the plasma transition, Sinko developed a useful, fluence-dependent model which predicts impulse delivered for pulsed lasers on polymers at a specific wavelength. Phipps subsequently developed an alternate model which treats elemental solids in the vapor regime, that only requires knowledge of basic material parameters and vapor pressure vs. temperature data. These data, except for optical absorptivity, are wavelength-independent. A simple technique combines either vapor model with the plasma model to form a complete model that moves smoothly through the vapor to plasma transition. In this paper, we apply these models to show the optimum momentum coupling fluence on target, at the transition from the vapor to the plasma regimes, for aluminum (a typical debris material) and polyoxymethylene (representing polymeric debris). The application of this work is the ORION laser space debris mitigation concept. This is an improvement over previous work, in which this optimum was only estimated from the plasma ignition threshold. We present calculations showing how impulse delivered to debris targets in the ORION concept varies with pulse duration, at an optimum fluence determined by nonlinear optical effects in the Earth's atmosphere.},
doi = {10.1063/1.3507138},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1278,
place = {United States},
year = {2010},
month = {10}
}