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Title: Multiple target laser ablation system

Abstract

A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film.

Inventors:
 [1]
  1. (Knoxville, TN)
Publication Date:
Research Org.:
LOCKHEED MARTIN ENRGY SYST INC
OSTI Identifier:
870249
Patent Number(s):
US 5483037
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
multiple; target; laser; ablation; apparatus; method; provided; targets; consisting; material; ablated; mounted; movable; support; transfer; rate; determined; rates; stored; controller; position; detector; determines; controls; beam; trigger; timing; energy; level; achieve; desired; proportion; constituent; resulting; film; energy level; target material; laser ablation; transfer rate; position detector; multiple target; multiple targets; controller controls; target mater; ablation apparatus; material transfer; constituent material; /219/118/427/

Citation Formats

Mashburn, Douglas N. Multiple target laser ablation system. United States: N. p., 1996. Web.
Mashburn, Douglas N. Multiple target laser ablation system. United States.
Mashburn, Douglas N. 1996. "Multiple target laser ablation system". United States. doi:. https://www.osti.gov/servlets/purl/870249.
@article{osti_870249,
title = {Multiple target laser ablation system},
author = {Mashburn, Douglas N.},
abstractNote = {A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1996,
month = 1
}

Patent:

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  • A laser ablation apparatus and method are provided in which multiple targets consisting of material to be ablated are mounted on a movable support. The material transfer rate is determined for each target material, and these rates are stored in a controller. A position detector determines which target material is in a position to be ablated, and then the controller controls the beam trigger timing and energy level to achieve a desired proportion of each constituent material in the resulting film. 3 figs.
  • A laser ablation apparatus having a laser source outputting a laser ablation beam includes an ablation chamber having a sidewall, a beam divider for dividing the laser ablation beam into two substantially equal halves, and a pair of mirrors for converging the two halves on a surface of the target from complementary angles relative to the target surface normal, thereby generating a plume of ablated material emanating from the target. 3 figs.
  • A laser ablation apparatus having a laser source outputting a laser ablation beam includes an ablation chamber having a sidewall, a beam divider for dividing the laser ablation beam into two substantially equal halves, and a pair of mirrors for converging the two halves on a surface of the target from complementary angles relative to the target surface normal, thereby generating a plume of ablated material emanating from the target.
  • A laser ablation system comprising a laser head providing a laser output; a flexible fiber optic cable optically coupled to the laser output and transmitting laser light; an output optics assembly including a nozzle through which laser light passes; an exhaust tube in communication with the nozzle; and a blower generating a vacuum on the exhaust tube. A method of decontaminating a surface comprising the following steps: providing an acousto-optic, Q-switched Nd:YAG laser light ablation system having a fiber optically coupled output optics assembly; and operating the laser light ablation system to produce an irradiance greater than 1.times.10.sup.7 W/cm.sup.2, andmore » a pulse width between 80 and 170 ns.« less
  • A system for applying a laser beam to work pieces, includes a laser system producing a high power output beam. Target delivery optics are arranged to deliver the output beam to a target work piece. A relay telescope having a telescope focal point is placed in the beam path between the laser system and the target delivery optics. The relay telescope relays an image between an image location near the output of the laser system and an image location near the target delivery optics. A baffle is placed at the telescope focal point between the target delivery optics and themore » laser system to block reflections from the target in the target delivery optics from returning to the laser system and causing damage.« less