Gold laser cleaning visualization showing process effects
Ikmanda Roswati
Ikmanda RoswatiPh.D.Indonesia
Ultrafast Laser Physics and Material Interactions
Published
Jan 6, 2026

Gold Settings

When laser cleaning gold, unlike copper or silver, its extreme reflectivity bounces most energy away. We typically switch to shorter wavelengths for better absorption. This lets you remove contaminants without melting the surface. Watch out mid-process for uneven heating—dial down power if spots heat up. We've found multiple light passes restore that pristine finish safely. Adjust overlap to avoid warping delicate pieces.

Gold Machine Settings

Optimal laser parameters and equipment specifications

Wavelength

532
nm
355
532
1.1e4

Spot Size

100
μm
0.1
100
500

Fluence Threshold

0.8
J/cm²
0.3
0.8
4.5

Pulse Width

10
ns
0.1
10
1,000

Scan Speed

500
mm/s
10
500
5,000

Pass Count

2
passes
1
2
10

Overlap Ratio

50
%
10
50
90

Energy Density

1
J/cm²
0.1
1
20

Laser Power

15
W
1
15
120

Laser Power Alternative

20
W
10
20
100

Frequency

20
kHz
1
20
200

Gold Material Safety

Shows damage risk across parameter space. Green = safe, Red = damage danger.
DANGER
Fluence:15.92 J/cm²
From optimal:63%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Gold Energy Coupling

Shows laser energy transfer efficiency. Green = high coupling (energy absorbed), Red = poor coupling (energy reflected).
MODERATE
Fluence:— J/cm²
From optimal:42%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Gold Thermal Stress Risk

Shows thermal stress and distortion risk. Green = low stress risk, Red = high stress/warping/cracking risk.
ELEVATED
Fluence:— J/cm²
From optimal:50%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Gold Cleaning Efficiency

Shows cleaning performance across parameter space. Green = optimal effectiveness, Red = ineffective.
GOOD
Fluence:15.92 J/cm²
From optimal:33%
Pulse Duration (ns)
1000
750
500
250
0
0
33
67
100
133
167
200
Power (W)

Gold Heat Buildup

Excellent

Heat Safety

Heat Control

Cooling Efficiency

Pass Optimization

📈 Heat Profile

Safe (<150°C)
Damage (>250°C)
0°C100°C200°C300°C✓ Safe🚨 Damage20°CPass 1Pass 2

🔧 Laser Settings

Pulse Energy:2000.00 mJ
Total Sim Time:60.4s

🌡️ Live Temperature

20°C
✅ Safe
Pass 1 of 2
Time: 0.0s / 60.4s

▶️ Simulation Controls

Diagnostic & Prevention Center

Proactive strategies and reactive solutions for gold

Prevention First

Proactive strategies to avoid problems before they occur

other • medium severity

Impact

Prevention Solutions

    Fix Issues

    Symptom-based diagnosis and solutions for active problems

    No troubleshooting guides available for this material.

    Quick Reference

    At-a-glance overview with severity matrix and decision support

    Challenges by Severity

    Medium Priority (1)

    • •

    Common Issues

    No common issues documented.

    Quick Decision Helper

    →Start with Prevention First tab before beginning work
    →Use Fix Issues tab when problems occur
    →Focus on Critical and High severity items first

    Gold Dataset

    Download Gold properties, specifications, and parameters in machine-readable formats
    50
    Variables
    0
    Laser Parameters
    0
    Material Methods
    11
    Properties
    3
    Standards
    3
    Formats
    View all Metal datasets

    License: Creative Commons BY 4.0 • Free to use with attribution •Learn more

    Parameter Relationships

    Shows how changing one parameter physically affects others. Click any node to see its downstream impacts and role.
    WavelengthSpotSizeFluenceThresholdPulseWidthScanSpeedPassCountOverlapRatioEnergyDensityLaserPowerLaserPowerAlternativeFrequency

    Spot Size

    Directly affects Scan Speed and Energy Density. Increase this to amplify downstream effects.

    Scan Speed

    A bigger spot lets you scan faster while keeping good coverage.

    Energy Density

    Smaller spots concentrate energy into a smaller area.

    Common Challenges

    Technical challenges and optimization strategies for these settings
    ThermalManagement
    • [object Object]
    • [object Object]
    ContaminationChallenges
    • [object Object]
    • [object Object]

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