Publications

@article{10.1117/1.2794357,

title = {Metallized slit-shaped pyramidal Si probe with extremely high resolution for 1.5-Tbit/in2 density near-field optical storage},

author = {Takashi Yatsui and Wataru Nomura and Motoichi Ohtsu},

url = {https://doi.org/10.1117/1.2794357},

doi = {10.1117/1.2794357},

year  = {2007},

date = {2007-09-01},

journal = {Journal of Nanophotonics},

volume = {1},

number = {1},

pages = {011550},

publisher = {SPIE},

abstract = {We have developed a near-field optical probe by introducing the metallized pyramidal structure of a Si probe with a slit-shaped tip for high-density optical storage. Numerical analysis using the finite-difference time-domain method showed that the optical spot generated at the aperture measured 13×30 nm. We fabricated a slit-type Si probe and evaluated the spot size using fluorescence imaging of a single dye molecule. The full-width at half maximum of the signal profiles was 16 nm×26 nm, which corresponds to a data density of 1.5 Tbit/in2. Furthermore, a large extinction coefficient depending on the polarization was confirmed.},

keywords = {First, near-field optical recording, Optical storage, Si},

pubstate = {published},

tppubtype = {article}

}