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Subwavelength-size solid immersion lens
DOI:10.1364/OL.36.003930.png)
Abstract
En 中文
We report on the fabrication and characterization of nanoscale solid immersion lenses (nano-SILs) with sizes down to a subwavelength range. Submicrometer-scale cylinders fabricated by electron-beam lithography are thermally reflowed to form a spherical shape. Subsequent soft lithography leads to nano-SILs on transparent substrates for optical characterization. The optical characterization is performed using a high-resolution interference microscope with illumination at 642nm wavelength. The focal spots produced by the nano-SILs show both spot-size reduction and enhanced optical intensity, which are consistent with the immersion effect. (C) 2011 Optical Society of America
Keywords:
RESOLUTION INTERFERENCE MICROSCOPY
FIELD
LITHOGRAPHY
SCALE
Journal
IF:
3.3
Papers:
4.0W
Citations:
7.6W

