TY - JOUR
T1 - Metallized slit-shaped pyramidal Si probe with extremely high resolution for 1.5-Tbit/in2 density near-field optical storage
AU - Yatsui, Takashi
AU - Nomur, Wataru
AU - Ohtsu, Motoichi
N1 - Funding Information:
This work was supported by the ‘‘Terabyte optical storage technology’’ project of the Optoelectronic Industry and Technology Development Association under contract with The Ministry of Economy Trade and Industry of Japan (METI) in 2002, as funded by METI.
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=66649119898&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=66649119898&partnerID=8YFLogxK
U2 - 10.1117/1.2794357
DO - 10.1117/1.2794357
M3 - Article
AN - SCOPUS:66649119898
SN - 1934-2608
VL - 1
JO - Journal of Nanophotonics
JF - Journal of Nanophotonics
IS - 1
M1 - 11550
ER -