Application of a liquid crystal spatial light modulator to laser marking

Research output: Contribution to journalArticle

Abstract

Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces. Previous demonstrations of laser marking with such devices have been limited to low average power lasers. Application in the ns regime enables more complex, larger scale marks to be generated with more widely available and industrially proven laser systems. The dynamic nature of the device is utilized to improve mark quality by reducing the impact of the inherently speckled intensity distribution across the generated image and reduce thermal effects in the marked surface. (C) 2011 Optical Society of America

Original languageEnglish
Pages (from-to)1779-1785
Number of pages7
JournalApplied Optics
Volume50
Issue number12
DOIs
Publication statusPublished - 20 Apr 2011

Keywords

  • HOLOGRAPHIC OPTICAL TWEEZERS
  • PROJECTION
  • SPECKLE
  • PATTERNS
  • BEAM

Cite this

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title = "Application of a liquid crystal spatial light modulator to laser marking",
abstract = "Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces. Previous demonstrations of laser marking with such devices have been limited to low average power lasers. Application in the ns regime enables more complex, larger scale marks to be generated with more widely available and industrially proven laser systems. The dynamic nature of the device is utilized to improve mark quality by reducing the impact of the inherently speckled intensity distribution across the generated image and reduce thermal effects in the marked surface. (C) 2011 Optical Society of America",
keywords = "HOLOGRAPHIC OPTICAL TWEEZERS, PROJECTION, SPECKLE, PATTERNS, BEAM",
author = "Parry, {Jonathan P.} and Beck, {Rainer J} and Shephard, {Jonathan D.} and Hand, {Duncan P.}",
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Application of a liquid crystal spatial light modulator to laser marking. / Parry, Jonathan P.; Beck, Rainer J; Shephard, Jonathan D.; Hand, Duncan P.

In: Applied Optics, Vol. 50, No. 12, 20.04.2011, p. 1779-1785.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Application of a liquid crystal spatial light modulator to laser marking

AU - Parry, Jonathan P.

AU - Beck, Rainer J

AU - Shephard, Jonathan D.

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N2 - Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces. Previous demonstrations of laser marking with such devices have been limited to low average power lasers. Application in the ns regime enables more complex, larger scale marks to be generated with more widely available and industrially proven laser systems. The dynamic nature of the device is utilized to improve mark quality by reducing the impact of the inherently speckled intensity distribution across the generated image and reduce thermal effects in the marked surface. (C) 2011 Optical Society of America

AB - Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces. Previous demonstrations of laser marking with such devices have been limited to low average power lasers. Application in the ns regime enables more complex, larger scale marks to be generated with more widely available and industrially proven laser systems. The dynamic nature of the device is utilized to improve mark quality by reducing the impact of the inherently speckled intensity distribution across the generated image and reduce thermal effects in the marked surface. (C) 2011 Optical Society of America

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KW - PROJECTION

KW - SPECKLE

KW - PATTERNS

KW - BEAM

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