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Table 1 Laser machining parameters for necrosis inspection

From: The Effect of Laser Ablation Pulse Width and Feed Speed on Necrosis and Surface Damage of Cortical Bone

 

PF

PS

CW

Nano

Laser type

Picosecond (fast feed)

Picosecond (slow feed)

Continuous Wave

Nanosecond

Wavelength (nm)

1064

1064

1090

1062

Pulse width (ps)

60

60

N/A

2 Ă— 105

Repetition rate (kHz)

4

4

N/A

35

Average output power (W)

3.5

3.5

19.5

18.3

Peak pulse power (kW)

14.6 Ă— 103

14.6 Ă— 103

N/A

2.6

Spot size (µm)

40.0

40.0

30.0

51.5

Pulse energy (mJ)

0.88

0.88

N/A

0.52

Feed (mm/s)

5

1

20

5

Trench length (mm)

3.5

3.5

3.5

3.5

Total pulses along trench length

2800

14000

N/A

24500

Total interaction time (s)

1.68 Ă— 10-7

8.40 Ă— 10-7

0.175

4.90 Ă— 10-3

Total energy (J)

2.45

12.25

3.41

12.81