Please use this identifier to cite or link to this item: https://doi.org/10.1002/lpor.201100009
Title: Fighting against diffraction: Apodization and near field diffraction structures
Authors: Wang, H.
Sheppard, C.J.R. 
Ravi, K.
Ho, S.T.
Vienne, G.
Keywords: Apodization
Beam shaping.
Diffraction
Diffraction limit
Evanescent wave
High focal depth
Longitudinal polarization
Microscopy
Nano-focusing
Nano-lithography
Nano-optics
Nano-photonics
Nanoscopy
Nondiffracting
Optical antenna
STED microscopy
STORM microscopy
Super lens
Superresolution
Time reversal
Issue Date: May-2012
Source: Wang, H., Sheppard, C.J.R., Ravi, K., Ho, S.T., Vienne, G. (2012-05). Fighting against diffraction: Apodization and near field diffraction structures. Laser and Photonics Reviews 6 (3) : 354-392. ScholarBank@NUS Repository. https://doi.org/10.1002/lpor.201100009
Abstract: Diffraction is a natural phenomenon, which occurs when waves propagate or encounter an obstacle. Diffraction is also a fundamental aspect of modern optics: all imaging systems are diffraction systems. However, like a coin has two sides, diffraction also leads to some unfavorable effects, such as an increase in the size of a beam during propagation, and a limited minimal beam size after focusing. To overcome these disadvantages set by diffraction, many techniques have been developed by various groups, including apodization techniques to reduce the divergence of a laser beam and increase the resolution, and time reversal, STED microscopy, super lenses and optical antennas to obtain resolution down to nano-scale. This review concentrates on the diffraction of electromagnetic waves, and the ways to overcome beam divergence and the diffraction limit. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Laser and Photonics Reviews
URI: http://scholarbank.nus.edu.sg/handle/10635/68245
ISSN: 18638880
DOI: 10.1002/lpor.201100009
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