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公开(公告)号：US20240331732A1
公开(公告)日：2024-10-03
申请号：US18194231
申请日：2023-03-31
Applicant: Microsoft Technology Licensing, LLC
Inventor： Masaaki SAKAKURA , Rokas DREVINSKAS , Daniel Jonathan Finchley CLETHEROE , Richard John BLACK , Austin Nicholas DONNELLY , Timothy John DEEGAN , James Hilton CLEGG , Philip Athelstan WAINMAN , Patrick Neil ANDERSON , Teodora ILIEVA , Thomas Torsten DR WINKLER , Pablo Rafael Andreas Wilke BERENGUER , Erika Blancada ARANAS , Bridgette Rosanna Doris COOPER , Ioan Alexandru STEFANOVICI
IPC: G11B7/24044 , G11B7/0045 , G11B7/1353 , G11B7/1365
CPC classification number: G11B7/24044 , G11B7/00456 , G11B7/1353 , G11B7/1365 , G11B2007/0009
Abstract: A method for forming birefringent voxels comprises simultaneously generating a first seed pulse and a first data pulse. The first seed pulse and the first data pulse are spatially-separated laser pulses having different amplitudes. The first seed pulse is focused at a first seed location, and the data pulse is focused at a first data location. The first seed location and the first data location are separated by a predetermined distance along a scan path, with the first seed location being ahead of the first data location. Subsequently, a second seed pulse and a second data pulse are generated, and focused at a second seed location and second data location, respectively. The second seed and data locations are separated by the predetermined distance. The second data location is the same as the first seed location, resulting in formation of a birefringent voxel.
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公开(公告)号：US20240331730A1
公开(公告)日：2024-10-03
申请号：US18194113
申请日：2023-03-31
Applicant: Microsoft Technology Licensing, LLC
Inventor： Thomas Torsten DR WINKLER , Rokas DREVINSKAS , Ariel GOMEZ DIAZ , Charles Ernest WHITTAKER , Timothy John DEEGAN , James Hilton CLEGG , Daniel Jonathan Finchley CLETHEROE , Hugh David Paul WILLIAMS , Austin Nicholas DONNELLY , Richard John BLACK , Masaaki SAKAKURA , Teodora ILIEVA , Bridgette Rosanna Doris COOPER , Ioan Alexandru STEFANOVICI , Erika Blancada ARANAS , Pablo Rafael Andreas Wilke BERENGUER
CPC classification number: G11B7/0051 , G11B7/126 , G11B2007/0013 , G11B2007/25301
Abstract: A method of writing data to a transparent substrate comprises forming a first voxel by focusing a first laser pulse on a first location in a transparent substrate; and forming a second voxel by focusing a second laser pulse on a second location in the transparent substrate. The first laser pulse and the second laser pulse have different amplitudes, resulting in the first and second voxels having different strengths. Also provided are a system useful for implementing the method; an optical data storage medium obtainable by the method; and a method of reading data from the optical data storage medium.
