20.500.12556/RUL-164838 Managing residual heat effects in femtosecond laser material processing by pulse-on-demand operation Femtosecond laser processing combines highly accurate structuring with low residual heating of materials, low thermal damage, and nonlinear absorption processes, making it suitable for the machining of transparent brittle materials. However, with high average powers and laser pulse repetition rates, residual heating becomes relevant. Here, we present a study of the femtosecond laser pulse-on-demand operation regime, combined with regular scanners, aiming to improve throughput and quality of processing regardless of the scanner’s capabilities. We developed two methods to define the needed pulse-on-demand trigger sequences that compensate for the initial accelerating scanner movements. The effects of pulse-on-demand operation were studied in detail using direct process monitoring with a fast thermal camera and indirect process monitoring with optical and topographical surface imaging of final structures, both showing clear advantages of pulse-on-demand operation in precision, thermal effects, and structure shape control. The ability to compensate for irregular scanner movement is the basis for simplified, cheaper, and faster femtosecond laser processing of brittle and heat-susceptible materials. femtosecond lasers laser microstructuring pulse-on-demand glass cutting femtosekundni laserji lasersko mikrostrukturiranje pulzi na zahtevo rezanje stekla true false true Angleški jezik Slovenski jezik Članek v reviji 2024-11-13 13:17:54 2024-11-13 13:17:58 2024-11-22 14:56:20 0000-00-00 00:00:00 2024 0 0 11 str. no. 6, art. 254 Vol. 8 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 535 2504-4494 10.3390/jmmp8060254 214843395 Petelin_..._Managing_Residual_Heat_Effects_in_Femtosecond_....pdf Petelin_..._Managing_Residual_Heat_Effects_in_Femtosecond_....pdf 1 2A29D67E4EF74D095F3C01E1EF55D073 15f3dd30bb032cc6c219db91424dbaff68012e661582a41a762ba541ca53fffc 2d88d120-a1bb-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195603 https://www.mdpi.com/2504-4494/8/6/254 1 f547cd37-a1b8-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195600 Fakulteta za strojništvo 0 0 0