Femtonics
Major: Laser and Optoelectronic Engineering
Code of subject: 7.153.01.O.5
Credits: 5.00
Department: Photonics
Lecturer: Assistant Hnilitskyi Yaroslav Mykolaiovych
Semester: 1 семестр
Mode of study: денна
Learning outcomes: As a result of studying the discipline students will know:
• mechanisms of interaction of femtosecond laser radiation with matter;
• properties of semiconductors in the range of femtosecond laser radiation;
• properties of structural materials in the area of laser development by femtosecond laser pulses;
• the place of laser technology in typical technological processes of microelectronics as alternative methods;
• basic technological operations of industrial and micromachining of materials with the use of femtosecond lasers;
• technical means and capabilities of femtosecond laser technology at the laboratory and industrial level;
• trends in the development of femtosecond laser industrial and nano-microtechnology.
and will be able to:
• explain the effects of the interaction of femtosecond laser radiation with structural materials and electronic technology materials;
• calculate and implement modes of femtosecond laser target processing;
• provide metrological control of technological processes and consequences of processing;
• control femtosecond laser pulses;
• design specialized equipment and develop technological processes.
Required prior and related subjects: – Prerequisites: Quantum electronics and laser technology.
– Co-requisites: Interaction of electromagnetic radiation with materials of micro- and nanosystem technology.
Summary of the subject: Introduction to femtonics. Features of femtosecond laser pulse formation in fiber laser. Mod-lock. Structure of a fiber femtosecond laser. Structure of a solid-state femtosecond laser. Interaction of femtosecond pulses with metals. Interaction of femtosecond pulses with dielectrics and semiconductors. Methods for studying the properties of the material after laser treatment with femtosecond pulses. Engineering calculations of laser processes. Features of surface treatment with femtosecond laser pulses. Physics of LIPPS, DLIP and LIFT formation. Application of LIPPS, DLIP and LIFT technologies. Trends in the development of femtosecond lasers and their applications.
Assessment methods and criteria: • Current control (50%): written reports on laboratory works, control works;
• Final control (50%): test (testing).
Recommended books: 1. Bobytskyi Ya.V., Matviishyn H.L. Laser technology. Part 1: textbook. – Lviv: Lviv Polytechnic Publishing House, 2015. – 320 p.
2. Gotra Z.Yu., Bobytskyi Ya.V. Laser processing methods in microelectronics. – Lviv: Svit, 1991. – 168 p.
3. Muravskyi L.I., Voroniak T.I., Kmet A.B. Laser interferometry of the surface for the needs of technical diagnostics: monograph. – Lviv: Spolom, 2014. – 272 p.
4. Gnilitskyi I. et al. High-speed manufacturing of highly regular femtosecond laser-induced periodic surface structures: physical origin of regularity. – Nature: Scientific Reports, 7, 8485 (2017).
5. Gnilitskyi I. et al. Mechanisms of high-regularity periodic structuring of silicon surface by sub-MHz repetition rate ultrashort laser pulses. – Applied Physics Letters, 109, 143101, doi: 10.1063/1.4963784 (2016).
6. Rotella G. et al. Innovative high-speed femtosecond laser nano-patterning for improved adhesive bonding of Ti6Al4V titanium alloy. – CIRP Journal of Manufacturing Science and Technology, doi: 10.1016/j.cirpj.2016.10.003 (2016)
Femtonics (курсовий проєкт)
Major: Laser and Optoelectronic Engineering
Code of subject: 7.153.01.O.6
Credits: 3.00
Department: Photonics
Semester: 1 семестр
Mode of study: денна