High density optical recording medium
作者： Byung-Ki Cheong , Sung-Hun Cho , Soon-Gwang Kim , Moonkyo Chung , Sung-Hun Lee
DOI:
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摘要: The present invention provides an optical recording medium in which the spot size of incident laser beam, focused on by a far-field optic system characterized λ and NA, is further reduced maintained below diffraction-limited means material characteristics while reproducing from information layer medium, thus making it possible to record reproduce high density exceeding resolution limit system. A according adopts combination two different super-resolution layers mutually complementary with increasing light power. made either types: for one type, each layers, having respective threshold intensity (or temperature) onset change transmittance, produces transmitted beam power once exceeded, other whereas exhibits reverse trend.
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