Why Do Lasers Engrave Inside Glass Without Breaking It? (Power, Pulse & Focus Explained)
Subsurface engraving works through nonlinear absorption and optical breakdown inside glass Laser energy is only absorbed at the focal point, not along the beam path Micro-fracture points remain localized and do not propagate into cracks Pulse duration controls thermal effects and precision Stable diode pump sources are critical for consistent energy delivery in solid-state systems […]
