Micromodification of Float Glass Structure by Femtosecond Laser Pulses for Analog Sound Storage
摘要
his article examines the formation of microregions with a modified refractive index inside float glass and fused silica under single-pulse femtosecond irradiation. Phase distributions of light transmitted through these microregions were reconstructed for observations both along and perpendicular to the writing direction. The influence of pulse energy on the phase shift was analyzed. The threshold pulse energy required to induce microregions in float glass was found to be lower than that in fused silica. These findings demonstrate the potential of femtosecond laser-induced structural modification in glass for creating durable analog sound carriers.