Light Delivery Techniques for Heat-Assisted Magnetic Recording

Autor:	Christophe Mihalcea, Keith R. Mountfield, Terry McDaniel, Ibrahim Kursat Sendur, William Albert Challener, Kalman Pelhos
Rok vydání:	2003
Předmět:	Materials science Physics and Astronomy (miscellaneous) business.industry Surface plasmon General Engineering General Physics and Astronomy Near and far field Optical power Light delivery Optics Transducer Heat-assisted magnetic recording Solid immersion lens business Superparamagnetism
Zdroj:	Japanese Journal of Applied Physics. 42:981-988
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.42.981
Popis:	Heat-assisted magnetic recording (HAMR), also known as hybrid recording, has been proposed to enable storage densities greater than 1 Tb/in2 in hard disc drives while circumventing the superparamagnetic limit. Light is delivered in the near field to the recording medium to heat just the spot which is to be recorded. Techniques based on apertures, antennas, waveguides, and solid immersion lenses have been suggested for delivering substantial amounts of optical power into subwavelength spots in the near field. A practical transducer for HAMR may require a combination of techniques.
Databáze:	OpenAIRE
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