Simultaneous spatial frequency modulation imaging and micromachining with a femtosecond laser

Optics Letters
Erica BlockJeff Squier

Abstract

A Ti:Al2O3 chirped-pulse amplification system is used to simultaneously image and machine. By combining simultaneous spatial and temporal focusing (SSTF) with spatial frequency modulation for imaging (SPIFI), we are able to decouple the imaging and cutting beams to attain a resolution and a field-of-view that is independent of the cutting beam, while maintaining single-element detection. This setup allows for real-time feedback with the potential for simultaneous nonlinear imaging and imaging through scattering media. The novel SSTF machining platform uses refractive optics that, in general, are prohibitive for energetic, amplified pulses that might otherwise compromise the integrity of the focus as a result of nonlinear effects.

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Citations

Nov 2, 2018·Optics Letters·Nathan WortsJeff Squier
Aug 16, 2018·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Jeffrey J FieldRandy A Bartels

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