Theoretical investigation of characters of SNOM probe operating on TEM wave

Anatoly Stepanovych Lapchuk

doi:10.1117/12.533121

16 September 2003 Theoretical investigation of characters of SNOM probe operating on TEM wave

Anatoly Stepanovych Lapchuk

Proceedings Volume 5069, Optical Data Storage 2003; (2003) https://doi.org/10.1117/12.533121
Event: Optical Data Storage 2003, 2003, Vancouver, Canada

Abstract

The optical characteristics of probe of near-field optical microscope operating on TEM-wave based on two trapeziform metallic strips on the surface of a dielectric cone are investigated by mathematic simulation. It was shown that this probe has large near-field and far-field transmission coefficient. The mathematic simulation also shown that this probe has large electrical field enhancement and broad bandwidth. The theoretical modeling of field structure of quasi TEM in optical waveband has shown that spatial resolution of 10 nm can be achieved. The probe design with low background radiation is proposed. The method of distance measurement from scanned surface based on detection of amplitude of microwave radiation excited by mechanical vibration of contrarily charged part of bifurcate probe apex is proposed. Large transmission coefficient, high spatial resolution and broad bandwidth of operation make this probe promising for using it in data storage, spectroscopy and nonlinear optic of nano-object. The characteristics of bulk metal were used in digital simulation. The obtianed theoretical results must be validated by experiments.

Citation Download Citation

Anatoly Stepanovych Lapchuk "Theoretical investigation of characters of SNOM probe operating on TEM wave", Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); https://doi.org/10.1117/12.533121

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