E
Eamonn Fearon
Researcher at University of Liverpool
Publications - 36
Citations - 655
Eamonn Fearon is an academic researcher from University of Liverpool. The author has contributed to research in topics: Laser & Spatial light modulator. The author has an hindex of 12, co-authored 36 publications receiving 565 citations.
Papers
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Journal ArticleDOI
Fast parallel diffractive multi-beam femtosecond laser surface micro-structuring
Zheng Kuang,Dun Liu,Walter Perrie,Stuart Edwardson,Martin Sharp,Eamonn Fearon,Geoff Dearden,Ken Watkins +7 more
TL;DR: In this article, the Gratings and Lenses algorithm was used to calculate computer generated holograms (CGHs) producing diffractive multiple beams for the parallel processing of femtosecond laser surface micro-structuring.
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Dynamic modulation of spatially structured polarization fields for real-time control of ultrafast laser-material interactions.
Yang Jin,Olivier Allegre,Walter Perrie,Kerry J. Abrams,J Ouyang,Eamonn Fearon,Stuart Edwardson,Geoff Dearden +7 more
TL;DR: Laser ablation of Induced Periodic Surface Structures is used to directly verify the state of polarization at the focal plane, enabling a remarkable level of real-time control of the properties of light waves and applied to real- time surface patterning, shows that highly controlled nanostructuring is possible.
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Effects of laser operating parameters on metals micromachining with ultrafast lasers
Jian Cheng,Jian Cheng,Walter Perrie,Stuart Edwardson,Eamonn Fearon,Geoff Dearden,Ken Watkins +6 more
TL;DR: In this paper, the effects of some key laser operating parameters were investigated for the purpose of industrial application and the evolution of surface morphology revealed that laser pulses overlap in a range around the spatial FWHM can help to achieve optimal residual surface roughness.
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Complete wavefront and polarization control for ultrashort-pulse laser microprocessing
Olivier Allegre,Yang Jin,Walter Perrie,J Ouyang,Eamonn Fearon,Stuart Edwardson,Geoff Dearden +6 more
TL;DR: This work uses two Spatial Light Modulators in combination to structure the optical fields of a picosecond-pulse laser beam, producing vortex wavefronts and radial or azimuthal polarization states.
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High-speed uniform parallel 3D refractive index micro-structuring of poly(methyl methacrylate) for volume phase gratings
Dun Liu,Zheng Kuang,Walter Perrie,Patricia Scully,A. Baum,Stuart Edwardson,Eamonn Fearon,Geoff Dearden,Ken Watkins +8 more
TL;DR: Parallel femtosecond refractive index laser inscription of clinical grade poly(methyl methacrylate) (PMMA) at 775 nm, 170 fs pulselength is demonstrated with multiple low fluence beams generated with the aid of a spatial light modulator.