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3 October 2022 Metasurfaces shaping ultrashort pulses in time and space (Conference Presentation)
Marcus Ossiander, Federico Capasso
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Proceedings Volume PC12195, Metamaterials, Metadevices, and Metasystems 2022; PC1219504 (2022) https://doi.org/10.1117/12.2634167
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Here we extend dispersion engineering in metasurfaces to time-domain applications and demonstrate nanocoatings that temporally reshape ultrashort laser pulses. The only 600 nm thin devices provide previously unavailable transmissive anomalous group delay dispersion in the visible to near-infrared spectral region and compensate for the dispersion of up to 2 mm thick fused silica. We show how they can straightforwardly compress light pulses down to the few-cycle limit or be coated onto most conventional optics to allow their direct application in ultrafast lasers. Combining this capability with nanoscopic spatial control opens pathways to create space- and time-varying beams.
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Marcus Ossiander and Federico Capasso "Metasurfaces shaping ultrashort pulses in time and space (Conference Presentation)", Proc. SPIE PC12195, Metamaterials, Metadevices, and Metasystems 2022, PC1219504 (3 October 2022); https://doi.org/10.1117/12.2634167
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KEYWORDS
Ultrafast phenomena
Femtosecond phenomena
Glasses
Lenses
Optical components
Silica
Silicon
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