Abstract This paper studies the dispersion effect of the supersphere solid immersion lens (SIL) on a near field optical microscopy system by using the vector diffraction theory. Results show that when a real non-monochromatic beam illuminates a supersphere SIL microscopy, the dispersion effect of the SIL has an important influence on the image quality. As the wavelength bandwidth of the non-monochromatic beam increases, the size of the focused spot increases and its intensity decreases in near-field microscopy systems with a supersphere SIL.
Received: 15 December 2008
Revised: 20 December 2008
Accepted manuscript online:
Fund: Project supported by National
Natural Science Foundation of China (Grant No 60777005).
Cite this article:
Zhang Yao-Ju(张耀举) and Zhuang You-Yi(庄友谊) Dispersion effect in optical microscopy systems with a supersphere solid immersion lens 2009 Chin. Phys. B 18 2788
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