Laser Patterning of Diamond. Part I. Characterization of Surface Morphology

Journal Article · Wed Jun 24 04:00:00 EDT 2009 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3152956· OSTI ID:1040122

Smedley, J; Bohon, Jen; Wu, Qiong; Rao, Triveni

As the use of diamond as a material for electronic and research applications increases, methods of patterning diamond will be required. In this work, single- and polycrystalline synthetic diamond samples were exposed to laser beams of different energies, wavelengths, and pulse durations. The effects of this exposure were characterized using optical microscopy, scanning electron microscopy, and atomic force microscopy. The threshold ablation energy density for 266 nm radiation with {approx} 30 ps pulse duration was measured to be {approx} 14 J/cm{sup 2}. The threshold for {approx} 10 ns pulses at the same wavelength was similar, but the ablated area displayed larger surface damage. The surface damage and the threshold energy increase significantly for 532 and 1064 nm radiations. Ablation performed using 213 nm radiation produced the most uniform surface. Changes in the ablated surface are presented in detail.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY (BNL)
• Sponsoring Organization: USDOE SC OFFICE OF SCIENCE (SC)
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 1040122
• Report Number(s): BNL--90332-2009-JA; KA04
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 12 Vol. 105; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ABLATION
ATOMIC FORCE MICROSCOPY
DIAMONDS
ENERGY DENSITY
LASERS
MORPHOLOGY
OPTICAL MICROSCOPY
RADIATIONS
SCANNING ELECTRON MICROSCOPY
THRESHOLD ENERGY
WAVELENGTHS