Št. zadetkov: 21
Izvirni znanstveni članek
Oznake:
ultra-fast laser processing;surface engineering;intrinsic pulse-on-demand;resonant scanning;
Modern electronics facilitate the need for fast, efficient, and reliable methods for direct laser-based surface engineering of conductive thin film materials on flexible substrates. Recent advances in pulsed laser source development only incrementally increased the processing speeds, as those are li ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Doktorska disertacija
Oznake:
optični sistemi;vlakenski laserji;vlakenski ojačevalniki;vlaki bliskov;
Pikosekundni vlakenski ojačevalnik za mikroprocesiranje
Leto:
2015
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
light-matter interaction;laser processing;direct laser microstructuring;bursts of pulses;fiber lasers;picosecond pulses;
We have developed an efficient, high precision system for direct laser microstructuring using fiber laser generated bursts of picosecond pulses. An opto-mechanical system for beam deflection and sample movement, precise pulse energy control, and a custom built fiber laser with the pulse duration of ...
Leto:
2017
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
cavitation bubbles;laser breakdown;tissue phantom;sonoporation;
Precise excitation of cavitation is a promising mechanism for microsurgery procedures and targeted drug delivery enhancement. The underlying phenomenon of interest, jetting behaviour of oscillating cavitation bubbles, occurs due to near-surface interactions between the boundary, liquid, and bubble. ...
Leto:
2022
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
micro cavitation;bubble nucleation;dual threshold;shockwaves;laser induced breakdown;
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 study is performed by monitoring the plasma size, the cavitation bubble size and the emitted shock waves. The latter two ...
Leto:
2023
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
vlakenski laserji;bliskovni laserji;iterbijeva vlakna;fiber lasers;pulsed lasers;ytterbium fibers;
A low-power source, such as a gain-switched laser diode, usually requires several amplification stages to reach sufficient power levels. When operating in burst mode, a correct input burst shape must be determined in order to compensate for gain saturation of all amplifier stages. In this paper we r ...
Leto:
2015
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
fiber lasers;pulse on demand;hybrid lasers;ultrashort pulses;
In this manuscript we present a true pulse-on-demand concept of a hybrid CPA laser system, consisting of a chirped-pulse fiber amplifier and an additional solid-state amplifier, capable of generating femtosecond pulses on demand without an external optical modulator/shutter. Pulse-on-demand operatio ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
hibridni laserji;femtosekundni laserji;CPA;variabilen CFBG;hybrid lasers;Femtosecond lasers;tunable CFBG;
In this manuscript, an implementation of a tunable nonlinear phase compensation method is demonstrated on a typical femtosecond hybrid laser consisting of a fiber pre-amplifier and an additional solid-state amplifier. This enables one to achieve constant laser pulse parameters over a wide range of p ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
prilagodljivi vlakenski laserji;tkivo mrežnice;teranostika;multimodalno slikanje;življenjski čas fluorescence;adaptable fiber lasers;retinal tissue;theranostics;multimodal imaging;fluorescence lifetime imaging;
To avoid a devastating effect of eye vision impairment on the information flow from the eye to our brain, enormous effort is being put during the last decades into the development of more sensitive diagnostics and more efficient therapies of retinal tissue. While morphology can be impressively image ...
Leto:
2020
Vir:
Fakulteta za strojništvo (UL FS)
Izvirni znanstveni članek
Oznake:
laser processing;bursts of pulses;surface engineering;laser ablation;
The intermediate pulse duration regime between typical ultra-short and nanosecond pulses has been investigated using MHz-range bursts of 70 ps pulses emitted from a custom-made fiber laser source. The goal of this study was to observe and understand the processes involved during laser ablation on th ...
Leto:
2021
Vir:
Fakulteta za strojništvo (UL FS)