UV Picosecond Lasers: Enabling the Next Generation of Precision Materials Processing

This presentation considers how different UV picosecond laser processing strategies influence machining performance across a wide range of materials and applications. It will compare the advantages and limitations of different wavelengths, pulse durations and pulse shapes, beam profiles, and processing conditions, showing that the optimum solution depends on the material and manufacturing objective.

Pasmanik will challenge several widely accepted assumptions in laser micromachining by demonstrating that the best processing strategy is often application-dependent rather than universal, combining practical engineering experience with experimental results to provide guidelines for selecting laser parameters for applications such as precision drilling and cutting of metals, semiconductors, dielectric materials as well as wafer dicing, surface structuring, chip repair, and microfluidic engineering.

About the presenter
Guerman Pasmanik, Ph.D., is the founder and CEO of Passat Ltd., a Canadian photonics company specializing in the development and manufacturing of compact diode-pumped solid-state (DPSS) picosecond pulse laser, incorporating nonlinear optical elements (phase conjugation mirrors, frequency converters, harmonics generators up to 213 nm). Since founding Passat in 1995, Pasmanik has led the development of advanced sub-nanosecond and picosecond laser systems, including high-peak-power UV lasers operating at 213 nm, 266 nm, and 355 nm.

Pasmanik earned his doctorate in electronics from Gorky State University, and his research and engineering work focuses on ultra-short laser–material interactions, laser ablation, precision micromachining, and advanced optical systems with pulses punching of metal, cutting transparent dielectrics such as UV grade fused silica. He has contributed to the development of laser technologies for the creation of high-energy and high-temperature laser ablation spots (up to 150 µJ at 213 nm, 400 µJ at 355 nm per picosecond pulse), laser-triggered source of high-power pressure pulses (~ 1 ps near emitter surface). Passat lasers have been applied in areas including long-distance object monitoring, high-precision machining, and producing high-energy ablation spots for mass spectrometry.

Pasmanik continues to advance compact high-energy picosecond laser technologies for next-generation manufacturing and photonics applications.