Papers & References

Femtosecond pulse shaping using a liquid–crystal display: Applications to depth profiling analysis

Discontinued Devices LC 2002 Spatial Light Modulators
Pulse Application / -Shaping
Published on:
Authors: Ota Samek, Vanja Hommes, Roland Hergenröder, Sergei V. Kukhlevsky
Abstract:
“We report on a beam shaping technique for femtosecond laser pulses based on a liquid-crystal display. The system is capable of modifying femtosecond Gaussian beams to a flattop beam. A pattern projected onto liquid-crystal display modifies the incoming Gaussian beam intensity so that flattop intensity profile is obtained. The process is monitored online using a charge-coupled device camera so that the intensity distribution of each pulse is known. An experimental example of the depth profile of a Cr layer on a Si substrate obtained using such a modified beam is presented.”

Restricted Access

Publication: Review of Scientific Instruments
Issue/Year: Rev. Sci. Instrum. 76, 086104 (2005)
DOI: 10.1063/1.1994897
Link: https://doi.org/10.1063/1.1994897
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