Superluminal-subluminal orbital angular momentum femtosecond laser focus.
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DOI: 10.1364/oe.439377
Abstract: The interplay between the frequency chirping of a broadband laser pulse and the longitudinal chromatic aberration of a focusing optic introduces the superluminal or subluminal behavior to a laser focus. In this paper, we present… read more here.
Keywords: superluminal subluminal; laser focus; angular momentum; laser ... See more keywords
Accelerating superluminal laser focus generated by a long-focal-depth mirror with high numerical aperture.
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DOI: 10.1364/oe.478768
Abstract: The long-focal-depth mirror is a novel reflective element proposed in recent years. Due to the advantages of negligible dependence on wavelength and high damage threshold, it is suitable to focus ultra-short laser pulses with broadband… read more here.
Keywords: focal depth; laser focus; focus; long focal ... See more keywords