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 language | English |
|---|---|
| Pages (from-to) | 1779-1785 |
| Number of pages | 7 |
| Journal | Applied Optics |
| Volume | 50 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 20 Apr 2011 |
Keywords
- HOLOGRAPHIC OPTICAL TWEEZERS
- PROJECTION
- SPECKLE
- PATTERNS
- BEAM
Cite this
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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 journal › Article
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.
AU - Hand, Duncan P.
PY - 2011/4/20
Y1 - 2011/4/20
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
KW - HOLOGRAPHIC OPTICAL TWEEZERS
KW - PROJECTION
KW - SPECKLE
KW - PATTERNS
KW - BEAM
U2 - 10.1364/AO.50.001779
DO - 10.1364/AO.50.001779
M3 - Article
VL - 50
SP - 1779
EP - 1785
JO - Applied Optics
JF - Applied Optics
SN - 0003-6935
IS - 12
ER -