Method and system for laser-based formation of micro-shapes in surfaces of optical elements
Abstract
A method of forming a surface feature extending into a sample includes providing a laser operable to emit an output beam and modulating the output beam to form a pulse train having a plurality of pulses. The method also includes a) directing the pulse train along an optical path intersecting an exposed portion of the sample at a position i and b) focusing a first portion of the plurality of pulses to impinge on the sample at the position i. Each of the plurality of pulses is characterized by a spot size at the sample. The method further includes c) ablating at least a portion of the sample at the position i to form a portion of the surface feature and d) incrementing counter i. The method includes e) repeating steps a) through d) to form the surface feature. The sample is free of a rim surrounding the surface feature.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083453
- Patent Number(s):
- 8389889
- Application Number:
- 12/818,094
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; 36 MATERIALS SCIENCE
Citation Formats
Bass, Isaac Louis, and Guss, Gabriel Mark. Method and system for laser-based formation of micro-shapes in surfaces of optical elements. United States: N. p., 2013.
Web.
Bass, Isaac Louis, & Guss, Gabriel Mark. Method and system for laser-based formation of micro-shapes in surfaces of optical elements. United States.
Bass, Isaac Louis, and Guss, Gabriel Mark. Tue .
"Method and system for laser-based formation of micro-shapes in surfaces of optical elements". United States. https://www.osti.gov/servlets/purl/1083453.
@article{osti_1083453,
title = {Method and system for laser-based formation of micro-shapes in surfaces of optical elements},
author = {Bass, Isaac Louis and Guss, Gabriel Mark},
abstractNote = {A method of forming a surface feature extending into a sample includes providing a laser operable to emit an output beam and modulating the output beam to form a pulse train having a plurality of pulses. The method also includes a) directing the pulse train along an optical path intersecting an exposed portion of the sample at a position i and b) focusing a first portion of the plurality of pulses to impinge on the sample at the position i. Each of the plurality of pulses is characterized by a spot size at the sample. The method further includes c) ablating at least a portion of the sample at the position i to form a portion of the surface feature and d) incrementing counter i. The method includes e) repeating steps a) through d) to form the surface feature. The sample is free of a rim surrounding the surface feature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 05 00:00:00 EST 2013},
month = {Tue Mar 05 00:00:00 EST 2013}
}
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