[HTML][HTML] Near threshold nucleation and growth of cavitation bubbles generated with a picosecond laser

V Agrež, J Mur, J Petelin - Ultrasonics Sonochemistry, 2023 - Elsevier
The nucleation and growth of cavitation bubbles few micrometers in size in water generated
by a 60 ps 515 nm fiber laser is observed and visualized near nucleation threshold. The …

Role of thermal ionization in internal modification of bulk borosilicate glass with picosecond laser pulses at high repetition rates

M Sun, U Eppelt, W Schulz, J Zhu - Optical Materials Express, 2013 - opg.optica.org
We study the roles of thermal ionization and electronic damage in the internal modification of
bulk borosilicate glass by high repetition rate picosecond laser pulses. Laser-induced …

Optoacoustic tones generated by nanosecond laser pulses can cover the entire human hearing range

L Lengert, H Lohmann, S Johannsmeier… - Journal of …, 2022 - Wiley Online Library
The aim of this work is to generate defined tones that cover the human hearing range in
aqueous media for a later application in middle or inner ear implants. In our experiments, we …

Acoustic stimulation of the human round window by laser-induced nonlinear optoacoustics

L Lengert, M Tomanek, M Ghoncheh, H Lohmann… - Scientific Reports, 2024 - nature.com
The feasibility of low frequency pure tone generation in the inner ear by laser-induced
nonlinear optoacoustic effect at the round window was demonstrated in three human …

High-speed microgroove processing of glass by expanding the high-temperature region formed by transient and selective laser absorption

C Wei, R Yoshizaki, Y Ito, A Shibata, I Nagasawa… - Optics …, 2022 - opg.optica.org
Microgroove processing of glass is important in many fields, however, it is difficult to achieve
the processing with a high speed. In this study, we developed a novel method for the high …

[HTML][HTML] Dynamic beam shaping—Improving laser materials processing via feature synchronous energy coupling

M Schmidt, K Cvecek, J Duflou, F Vollertsen, CB Arnold… - CIRP Annals, 2024 - Elsevier
Today, tailored laser beams are rarely used and thus an opportunity to optimize existing or
introduce new processes is missed. New methods of dynamic beam shaping have the …

Microparticle manipulation using femtosecond photonic nanojet-assisted laser cavitation

A Shakhov, A Astafiev, V Nadtochenko - Optics letters, 2018 - opg.optica.org
We report the effect of laser cavitation in water initiated by femtosecond pulses confined into
subwavelength volume of photonic nanojet of spherical microparticles. The effect of …

[PDF][PDF] 纳米尺度下基底弯曲曲率对飞秒激光与银纳米结构作用的影响

林卿, 任乃飞, 夏凯波, 郭新年 - Acta Optica Sinica, 2024 - researching.cn
摘要针对曲面沉积基底影响银纳米粒子近场增强, 介导效果的问题, 设计了一种沉积在曲面基底
上的Ag/SiO2 芯/壳纳米结构模型, 对该纳米结构介导飞秒激光击穿介质过程中涉及的电磁场 …

Abrupt initiation of material removal by focusing continuous-wave fiber laser on glass

R Yoshizaki, Y Ito, N Miyamoto, A Shibata… - Applied Physics A, 2020 - Springer
Glass with high-aspect-ratio micro holes is used in system-in-package technologies and
microfluidic devices. In this study, to investigate the feasibility of the process, we used a …

Cavitation bubble oscillation period as a process diagnostic during the laser shock peening process

D Glaser, C Polese - Applied Physics A, 2017 - Springer
Laser shock peening (LSP) technology is a laser-induced shock process implemented as a
surface enhancement technique to introduce beneficial compressive residual stresses into …