Ultrafast Photonic Joining
Ultrafast Laser Glass Welding & Hermetic Sealing Calculator
Calculate non-linear multi-photon peak focal intensity ($I_{\text{peak}}$), thermal accumulation melt pool width ($W_{\text{weld}}$), optical contact Newton gap tolerances, and hermetic shear bond strength for transparent optics and MEMS encapsulation.
Laser Parameters & Interfacial Optics
Single pulse energy at 1030 nm / 1064 nm wavelength.
Ultrafast laser FWHM pulse width (0.3 to 15 ps).
High-repetition rate enables heat accumulation between pulses.
Diffraction-limited Gaussian focal waist focused at the interface.
Translation velocity of galvo/axis along the seam trajectory.
Mechanical fixture pressure to eliminate air gap (< 250 nm).
Non-Linear Optics & Seam Dimensions
Peak Intensity ($I_{\text{peak}}$)
--TW/cm²
Linear Heat Input ($HI$)
--J/mm
Melt Seam Width ($W_{\text{weld}}$)
--µm
Shear Bond Strength
--MPa
Average Laser Power
--W
Maximum Air Gap Limit
250nm
Regime Assessment: STABLE NON-LINEAR HEAT ACCUMULATION (> 10 TW/cm²)
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