Nonparaxial abruptly autofocusing beams

Abstract

We study nonparaxial autofocusing beams with pre-engineered trajectories. We consider the case of linearly polarized electric optical beams and examine their focusing properties such as contrast, beam width, and numerical aperture. Such beams are associated with larger intensity contrasts, can focus at smaller distances, and have smaller spot sizes as compared to the paraxial regime.

5 pages, 8 figures. To be published in Optics Letters

References in corpus (5)

• Nonparaxial Mathieu and Weber accelerating beams
• Non-Paraxial Accelerating Beams
• Nondiffracting Accelerating Waves: Weber waves and parabolic momentum
• Sending femtosecond pulses in circles: highly non-paraxial accelerating beams
• Closed-form expressions for nonparaxial accelerating beams with pre-engineered trajectories

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• Precise amplitude, trajectory, and beam-width control of accelerating and abruptly autofocusing beams
• Observation of microscale nonparaxial optical bottle beams
• Independent amplitude and trajectory/beam-width control of nonparaxial beams