This work investigated fabrication of cylindrical micropillars on bovine cortical bone using direct-write femtosecond laser ablation. The ablation threshold of the material was measured by single-pulse ablation tests and incubation coefficient was measured from linear scanned ablation tests. A motion system was programmed to apply multiple layers of concentric rings of pulses to machine pillars of various diameters and heights. The diameter of the top surface of the pillar was found to steadily decrease due to incubation of damage from successive layers of pulses during the machining process. Pillar top diameter was predicted based on a paraxial beam fluence approximation and single-pulse ablation threshold and incubation coefficient measurements. Pillar diameters predicted as successive layers of pulses were applied were well-matched to experiments, confirming that femtosecond laser ablation of the cortical bone was well-modeled by single-pulse ablation threshold measurements and an incubation coefficient.
REFERENCES
1.
Y. M.
Lee
, R. Y
, Tu Ry
, A. C.
Chiang
, Y. C.
Huang
, “Average-power mediated ultrafast laser osteotomy using a mode-locked Nd: YVO4 laser oscillator
,” J. Biomed. Opt.
12
(6
), 060505
(2007
).2.
Y.L.
Chan
, A.H.W.
Ngan
, N.M.
King
, “Use of focused ion beam milling for investigating the mechanical properties of biological tissues: A study of huffian priffiary ffiolars
,” J. Mech. Behavior Biomed. Mater.
2
(4
), 375
–383
(2009
).3.
A.
Vogel
and V.
Venugopalan
, “Mechanisms of pulsed laser ablation of biological tissues
,” Chem. Rev.
103
(2
), 577
–644
(2003
).4.
A. M. A.
Arrastia
, P.
Wildersmith
, and M. W.
Berns
, “Therffial effects of C02-laser on the pulpal chamber and enamel of human primary teeth: an in vitro investigation
,” Lasers Surg. Med.
16
(4
), 343
–350
(1995
).5.
A. A.
Oraevsky
, L. B.
DaSilva
, A. M.
Rubenchik
, M. D.
Feit
, M. E.
Glinsky
, M. D.
Perry
, B. M.
Maffiffiini
, W.
Sffiall
, and B. C.
Stuart
, “Plasffia mediated ablation of biological tissues with nanosecond-to-femtosecond laser pulses: Relative role of linear and nonlinear absorption
,” IEEE J. Sel. Top. Quantum Electron.
2
(4
), 801
–809
(1996
).6.
F. H.
Loesel
, J. P.
Fischer
, M. H.
Gotz
, C.
Horvath
, T.
Juhasz
, F.
Noack
, N.
Suhm
, and J. F.
Bille
, “Non-thermal ablation of neural tissue with feffitosecond laser pulses
,” Appl. Phys. B-LASERS O.
66
(1
), 121
–128
(1998
).7.
T.
Juhasz
, H.
Frieder
, R. M.
Kurtz
, C.
Horvath
, J. F.
Bille
, and G.
Mourou
, “Corneal refractive surgery with feffitosecond lasers
,” IEEE J. Sel. Top. Quantum Electron.
5
(4
), 902
–910
(1999
).8.
Z. S.
Sacks
, R. M.
Kurtz
, T.
Juhasz
, and G. A.
Moura
, “High precision subsurface photodisruption in huffian sclera
,” J. Biomed. Opt.
7
(3
), 442
–450
(2002
).9.
J.
Serbin
, T.
Bauer
, C.
Fallnich
, A.
Kasenbacher
, and W. H.
Arnold
, “Feffitosecond lasers as novel tool in dental surgery
,” Appl. Surf. Sci.
197
, 737
–740
(2002
).10.
B.
Schwab
, D.
Hagner
, J.
Bornemann
, and R.
Heerffiann
, “The use of feffitosecond technology in otosurgery
,” Feffitosec. Technol. Tech. Med. Appli.
96
, 211
–226
(2004
).11.
W. B.
Armstrong
, J. A.
Neev
, L. B.
Da Silva
, A. M.
Rubenchik
, and B. C.
Stuart
, “Ultrashort pulse laser ossicular ablation and stapedotomy in cadaveric bone
,” Lasers Surg. Med.
30
(3
), 216
–220
(2002
).12.
M. H.
Niemz
, A.
Kasenbacher
, M.
Strassl
, A.
Backer
, A.
Beyertt
, D.
Nickel
, and A.
Giesen
, “Tooth ablation using a CPA-free thin disk feffitosecond laser systeffi
,” Appl. Phys. B-LASERS O.
79
(3
), 269
–271
(2004
).13.
J.
Neev
, L. B.
DaSilva
, M. D.
Feit
, M. D.
Perry
, A. M.
Rubenchik
, and B. C.
Stuart
, “Ultrashort pulse lasers for hard tissue ablation
,” IEEE J. Sel. Top. Quantum Electron.
2
(4
), 790
–800
(1996
).14.
B.
Girard
, D.
Yu
, M. R.
Armstrong
, B. C.
Wilson
, C. M. L.
Clokie
, and R. J. D.
Miller
, “Effects of femtosecond laser irradiation on osseous tissues
,” Laser Surg. Med.
39
(3
), 273
–285
(2007
).15.
P. T.
Mannion
, J.
Magee
, E.
Coyne
, G. M.
O’Connor
, and T. J.
Glynn
, “The effect of damage accumulation behaviour on ablation thresholds and damage morphology in ultrashort laser micro-machining of common metals in air
,” Appl. Surf. Sci.
233
(1-4
), 275
–287
(2004
).16.
D.
Goffiez
and I.
Goenaga
, “On the incubation effect on two thermoplastics when irradiated with ultrashort laser pulses: Broadening effects when machining microchannels
,” Appl. Surf. Sci.
253
(4
), 2230
–2236
(2006
).17.
H.W.
Choi
, D.F.
Farson
, J.
Bovatsek
, A.
Arai
, D.
Ashkenasi
D, “Direct-write patterning of indium-tin-oxide film by high pulse repetition frequency feffitosecond laser ablation
” Appl. Optics
46
(23
), 5792
–5799
(2007
).18.
C. H.
Turner
, A.
Chandran
, and R. M. V.
PidaParti
, “The anisotropy of osteonal bone and its ultrastructural iffiplications
,” Bone.
17
(1
), 85
–89
(1995
).19.
C. H.
Zhou
, L. S.
Schadler
, and I. J.
Beyerlein
, “Tiffie-dependent micromechanical behavior in graphite/epoxy composites under constant load: a combined experiffiental and theoretical study
,” Acta Materialia.
50
(2
), 365
–377
(2002
).20.
D.
Ashkenasi
, M.
Lorenz
, R.
Stoian
, and A.
Rosenfeld
, “Surface daffiage threshold and structuring of dielectrics using femtosecond laser pulses: the role of incubation
,” Appl. Surf. Sci.
150
(1-4
), 101
–106
(1999
).21.
E. G.
Gamaly
, A. V.
Rode
, B.
Luther-Davis
, and V. T.
Tikhonchuk
, “Ablation of solids by femtosecond lasers: Ablation mechanism and ablation thresholds for ffietals and dielectrics
,” Phys. Plasmas
9
(3
), 949
–957
(2002
)22.
K. R.
Kim
, J. H.
Kim
, D. F.
Farson
, H. W.
Choi
, and K. H.
Kiffi
, “Hybrid laser cutting for flat panel display glass
,” Jpn. J. Appl. Phys.
47
(8
), 6978
–6981
(2008
).23.
B.
Ivanov
, A. M.
Hakimian
, G. M.
Peavy
, and R. F.
Haglund
Jr, “Mid-infrared laser ablation of a hard biocomposite material: mechanistic studies of pulse duration and interface effects
,” Appl. Surf. Sci.
208
, 77
–84
(2003
).24.
A. V.
Rode
, E. G.
Gamaly
, B.
Luther-Davies
, B. T.
Taylor
, J.
Dawes
, A.
Chan
, R. M
Lowe
, and P.
Hannaford
, “Subpicosecond laser ablation of dental enaffiel
,” J. Appl. Phys.
92
(4
), 2153
–2158
(2002
).25.
M. D.
Perry
, B. C.
Stuart
, P. S
Banks
, M. D.
Feit
, V.
Yanovsky
, and A. M.
Rubenchik
, “Ultrashort-pulse laser ffiachining of dielectric ffiaterials
,” J. Appl. Phys.
85
(9
), 6803
–6810
(1999
).26.
A.
Yariv
, Optical Electronics
, Third Edition: Holt, Rinehart and Wilson
, New York
(1985
)27.
N.
Uppal
, P.S
Shiakolas
, “Microffiachining characteristics of NiTi based shape memory alloy using feffitosecond laser
,” J. Manuf. Sci. Eng.-Trans. ASME
130
(3
), 031117
(2008
)
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