Novel transparent electrodes for electro-optical near-field microscopy

T. Otto; S. Grafstroem; J. Seidel; Lukas M. Eng

doi:10.1117/12.515797

8 August 2003 Novel transparent electrodes for electro-optical near-field microscopy

T. Otto, S. Grafstroem, J. Seidel, Lukas M. Eng

Proceedings Volume 5122, Advanced Organic and Inorganic Optical Materials; (2003) https://doi.org/10.1117/12.515797
Event: 2003 Chapter books, 2003, Bellingham, WA, United States

Abstract

We report the deposition, characterization, and application of novel optically transparent electrodes, namely ultrathin chromium films and amorphous carbon layers (a-C:H), suitable for replacing ITO and other common materials used so far in electro-optics. The ultrathin layers provide sufficient optical transmission of up to 95% for layer thicknesses of 2 nm and 5 nm for Cr and a-C:H, respectively, showing a flat spectral dependence between 400 and 800 nm. These features are maintained when using these coatings as electrodes on tapered optical fibers as used for scanning near-field optical microscopy (SNOM). We show the successful application of such coated optical tips for ferroelectric domain switching on the nanometer scale.

Citation Download Citation

T. Otto, S. Grafstroem, J. Seidel, and Lukas M. Eng "Novel transparent electrodes for electro-optical near-field microscopy", Proc. SPIE 5122, Advanced Organic and Inorganic Optical Materials, (8 August 2003); https://doi.org/10.1117/12.515797

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