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Development of a translation system for micro-fabrication with femtosecond laser pulses.

Grant number: 11/10318-2
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): August 01, 2011
Effective date (End): August 31, 2013
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal researcher:Leonardo de Boni
Grantee:Bruno Fernando Mendonça Callegaro
Home Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The use of femtosecond lasers for micro-fabrication of different types of materials has emerged as promising tool for the development of photonic and opto-electronic devices. Basically, the intensity of femtosecond pulses can be high enough to cause nonlinear interactions, leading to formation of structures with distinct optical properties. Therefore, in this project, we intent to make a new laser micro-fabrication setup, in which the stepping motor translation will be managed by a microprocessor connected through a computer via USB interface. This new control system would allow the micro-fabrication tool be friendly to any computer without specifically expensive hardware. In a certain way, this is extremely important for the experimental setup be prepared for measurement is a reducing time and also in term of economic expenses. Besides, to have an external manage system, which will be all the time attached to micro-fabrication setup, is essential for make free computers and important control and data acquisition hardwares used in others experimental. As a final project goal, micro-fabrication in PMMA will be make and analyzed by different microscopic techniques. Such micro-structures will provide vital information about how the microprocessor system is acting and if the same shall present a desired reliability in terms of needed precision for such experimental.

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