High-performance readout and recording by a combination aperture
Optics Letters, Vol. 26, Issue 24, pp. 1987-1989 doi:10.1364/OL.26.001987
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- OCIS Codes:
- (180.5810) Microscopy : Scanning microscopy
- (210.0210) Optical data storage : Optical data storage
- (210.4810) Optical data storage : Optical storage-recording materials
- (260.1960) Physical optics : Diffraction theory
Citation
Shu-Guo Tang, Tom D. Milster, J. Kevin Erwin, and Warren L. Bletscher, "High-performance readout and recording by a combination aperture," Opt. Lett. 26, 1987-1989 (2001)
http://www.opticsinfobase.org/abstract.cfm?URI=ol-26-24-1987
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A solid immersion lens combined with a conical dielectric tip exhibits good resolution and efficiency in reading and recording data marks on optical storage media. We demonstrate a combination aperture that produces ~200-nm full-width 1/e2 spot size and achieves 50% optical efficiency in an edge-scan experiment. A comparison of recording with the combination aperture, with an unmodified solid immersion lens, and with a far-field system is made.
© 2001 Optical Society of America
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Author Affiliations
Optical Data Storage Center—Optical Sciences Center, University of Arizona, Tucson, Arizona 85721
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