Safe
124°C+126°C
Ikmanda RoswatiPh.D.Indonesia
Ultrafast Laser Physics and Material InteractionsPorphyry Laser Cleaning Settings
We've found that when laser cleaning Porphyry, you need to start conservatively with power levels to prevent any surface cracking from its uneven crystal structure, which can trap heat unevenly compared to smoother granites. In our experience, this durable stone responds well because of its low porosity and strong compressive hold—it absorbs laser energy steadily without letting contaminants seep back in, unlike more porous limestones that demand extra passes. We typically use a focused beam with moderate speed and overlap to gently lift away grime while preserving the natural polish, since Porphyry's heat resistance lets it handle short bursts without warping. But watch out for overdoing the intensity early on; its moderate conductivity means heat builds up if you rush, so adjust by slowing the scan and adding passes to avoid subtle fissures that show up later in heritage pieces. This approach restores the stone's finish cleanly for architectural or cultural work.
Porphyry Machine Settings
Power Range
100
W
1
100
120
Wavelength
1,064
nm
355
1,064
1.1e4
Spot Size
100
μm
0.1
100
500
Repetition Rate
50
kHz
1
50
200
Energy Density
12.7
J/cm²
0.1
12.7
20
Pulse Width
10
ns
0.1
10
1,000
Scan Speed
500
mm/s
10
500
5,000
Pass Count
3
passes
1
3
10
Overlap Ratio
50
%
10
50
90
Porphyry Material Safety
Shows damage risk across parameter space. Green = safe, Red = damage danger.
Pulse
DANGER
Fluence:25.46 J/cm²
From optimal:71%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Porphyry Energy Coupling
Shows laser energy transfer efficiency. Green = high coupling (energy absorbed), Red = poor coupling (energy reflected).
Pulse
GOOD
Fluence:— J/cm²
From optimal:33%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Porphyry Thermal Stress Risk
Shows thermal stress and distortion risk. Green = low stress risk, Red = high stress/warping/cracking risk.
Pulse
HIGH RISK
Fluence:— J/cm²
From optimal:58%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Porphyry Cleaning Efficiency
Shows cleaning performance across parameter space. Green = optimal effectiveness, Red = ineffective.
Pulse
GOOD
Fluence:25.46 J/cm²
From optimal:33%
Pulse Duration (ns)
1000
750
500
250
0
1
21
41
61
80
100
120
Porphyry Heat Buildup
See if your multi-pass cleaning will overheat and damage the material
Heat Safety
100%40%
Heat Control
71%25%
Cooling Efficiency
83%20%
Pass Optimization
100%15%
📈 Heat Profile
Safe (<150°C)
Damage (>250°C)
🔧 Laser Settings
Pulse Energy:2000.00 mJ
Total Sim Time:90.6s
🌡️ Live Temperature
20°C
✅ Safe
Pass 1 of 3
Time: 0.0s / 90.6s
▶️ Simulation Controls
Diagnostic & Prevention Center
Proactive strategies and reactive solutions for porphyry
🌡️thermal management
Heat accumulation
Impact: Excessive heat can damage substrate or alter material properties
Solutions:
- ✓Reduce repetition rate
- ✓Increase scan speed
- ✓Add cooling time between passes
Prevention: Monitor surface temperature and adjust parameters accordingly
🔍surface characteristics
Variable surface roughness
Impact: Inconsistent cleaning results across different surface textures
Solutions:
- ✓Adjust energy density based on surface condition
- ✓Use multiple passes with progressive settings
- ✓Pre-characterize surface before cleaning
Prevention: Standardize surface preparation procedures
Porphyry Dataset Download
Parameter Relationships
Shows how changing one parameter physically affects others. Click any node to see its downstream impacts and role.
Power Range
Amplifies damage risk in Pulse Width and Energy Density. Keep low to maintain safety margins.
Spot Size
Same power in a smaller spot creates much higher energy density.
Energy Density
Higher power delivers more energy per pulse, removing more material.
Pulse Width
More power means higher peak intensity. Too much can damage the material.
Pass Count
Using more passes means you can use lower power and still get the job done.
