Resolving power of diffraction imaging with an objective: a numerical study

ECU Author/Contributor (non-ECU co-authors, if there are any, appear on document)

Junhua Ding (Creator)

Xin-Hua Hu (Creator)

Jing Liu (Creator)

Jun Q. Lu (Creator)

Wenjin Wang (Creator)

Institution

East Carolina University (ECU )

Web Site: http://www.ecu.edu/lib/

Abstract: Diffraction imaging in the far-field can detect 3D morphological features of an object for its coherent nature. We describe methods for accurate calculation and analysis of diffraction images of scatterers of single and double spheres by an imaging unit based on microscope objective at non-conjugate positions. A quantitative study of the calculated diffraction imaging in spectral domain has been performed to assess the resolving power of diffraction imaging. It has been shown numerically that with coherent illumination of 532 nm in wavelength the imaging unit can resolve single spheres of 2 µm or larger in diameters and double spheres separated by less than 300 nm between their centers.

Additional Information

Publication

Other

"Wenjin Wang , Jing Liu , Jun Qing Lu , Junhua Ding , and Xin-Hua Hu , ""Resolving power of diffraction imaging with an objective: a numerical study , "" Opt. Express 25 , 9628-9633 (2017)"

Language: English

Date: 2017

Keywords

Diffraction imaging, Image processing, Diffraction limit, Light scattering, Light intensity, Light wavelength

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