Near-field light generating element and heat-assisted...

Details Near-field light generating element and heat-assisted... Near-field light generating element and heat-assisted...

2008-09-05

2010-12-21

Neyzari, Ali (Department: 2627)

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Magnetic field and light beam

Reexamination Certificate

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07855937

ABSTRACT:
Provided is a near-field light generating element capable of avoiding excessive temperature rise, which comprises a waveguide and a near-field light generating layer. The layer comprises: a propagation surface on which surface plasmon excited by the light propagates; and a near-field light generating end at which near-field light is generated. The end is one end of the propagation surface. And a portion of the side surface of the waveguide is opposed to a portion of the propagation surface of the near-field light generating layer with a predetermined spacing so that the light propagating through the waveguide is coupled with the near-field light generating layer in a surface plasmon mode. The near-field light generating layer is preferably tapered toward the near-field light generating end.

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Michael Hochberg, Tom Baehr-Jones, Chris Walker & Axel Scherer, “Integrated plasmon and dielectric waveguides”, Optics Express vol. 12, No. 22, pp. 5481 to 5486, 2004.

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