Superresolution effect due to a thin dielectric slab for imaging with radially polarized light

Optics Express
Peiwen MengH P Urbach

Abstract

Improving the image quality of small particles is a classic problem and especially challenging when the distance between particles are below the optical diffraction limit. We propose a imaging system illuminated with radially polarized light combined with a suitable substrate that contains a thin dielectric layer to demonstrate that the imaging quality can be enhanced. The coupling between the evanescent wave produced in a designed thin dielectric layer, the small particles and the propagating wave forms a mechanism to transfer sub-wavelength information about the particles to the far field. The smallest distinguished distance reaches to 0.634λ, when the imaging system is composed of a high numerical aperture (NA=0.9) lens and the illumination wavelength λ = 632nm, beyond the diffraction limit 0.678λ. The lateral resolution can be further improved by combining the proposed structure with superresolution microscopy techniques.

References

Oct 21, 2000·Physical Review Letters·J B Pendry
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·M PaulusO J Martin
Dec 20, 2003·Physical Review Letters·R DornG Leuchs
Aug 10, 2006·Nature Methods·Michael J RustXiaowei Zhuang
Aug 12, 2006·Science·Eric BetzigHarald F Hess
Sep 19, 2006·Biophysical Journal·Samuel T HessMichael D Mason
Jul 17, 2000·Optics Express·K Youngworth, T Brown
Mar 21, 2005·Optics Express·David Melville, Richard Blaikie
Nov 25, 2018·Optics Express·Peiwen MengPaul Urbach

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