Super defocusing of light by optical sub-oscillations

Abstract

We show that it is possible to construct spectrally lower bound limited functions which can oscillate locally at an arbitrarily low frequency. Such sub-oscillatory functions are complementary to super-oscillatory functions which are band-limited yet can oscillate locally at an arbitrarily high frequency. We construct a spatially sub-oscillatory optical beam to experimentally demonstrate optical super defocusing.

14 pages, 4 figures

References in corpus (2)

• Weak Measurements of Light Chirality with a Plasmonic Slit
• Superoscillation in speckle patterns

Cited by in corpus (3)

• An approach to constructing super oscillatory functions
• Suboscillations with arbitrary shape
• Superoscillatory PT-symmetric potentials