公开(公告)号：US20080260983A1

公开(公告)日：2008-10-23

申请号：US11794666

申请日：2006-01-25

申请人： Ludovic Poupinet ,  Fabien Laulagnet

发明人： Ludovic Poupinet ,  Fabien Laulagnet

IPC分类号： B32B3/30

CPC分类号： G11B7/00452 ,  G11B7/24085 ,  G11B7/243 ,  G11B7/2534 ,  G11B2007/24304 ,  G11B2007/24316

摘要： An irreversible optical recording medium comprises at least a substrate whereon is arranged at least a photosensitive layer comprising a structured front face destined to receive an optical radiation during data recording and/or reading operations. The medium also comprises a track comprising raised zones, having: a height comprised between about 25 nm and about 35 nm for widths of raised zones comprised between 250 nm and 370 nm, and a height comprised between a minimum value varying substantially linearly, in decreasing manner, from 25 nm to 32 nm, and a maximum value substantially of 35 nm, for widths of raised zones comprised between 200 nm and 250 nm.

摘要翻译： 不可逆光学记录介质至少包括至少一个衬底，其至少布置有在数据记录和/或读取操作期间预定为接收光学辐射的结构化正面的感光层。 所述介质还包括包括凸起区域的轨道，其具有：包括在250nm和370nm之间的凸起区域的宽度在约25nm和约35nm之间的高度，以及包括在基本上线性变化的最小值之间的高度， 方式，从25nm到32nm，最大值基本上是35nm，对于200nm到250nm之间的凸起区域的宽度。

公开(公告)号：US08243574B2

公开(公告)日：2012-08-14

申请号：US12598166

申请日：2008-04-30

申请人： Salim Mimouni ,  Fabien Laulagnet

发明人： Salim Mimouni ,  Fabien Laulagnet

IPC分类号： G11B7/135

CPC分类号： G11B7/0052 ,  G11B7/005 ,  G11B7/1367 ,  G11B7/1398 ,  G11B7/24 ,  G11B7/252

摘要： The invention relates to the writing and optical reading of high-density information. The higher energy density at the center of the reading laser beam is used for modifying the energy structure of an active layer in such a way as to make it capable of bearing surface plasmons. The coupling of the laser beam and the active layer thus modified can then excite surface plasmons in an interface between a dielectric layer and the active layer. These surface plasmons are disturbed by physical marks having very small dimensions and written in the optical storage medium; these disturbances generate a remote-field optical response which can be detected by a detector. The operation is carried out in super-resolution, the surface plasmons being generated only at the center of the laser beam and not at the periphery. It is therefore possible to write and to read again marks having dimensions of size smaller than the theoretical resolution of the optical reading system.

摘要翻译： 本发明涉及高密度信息的写入和光学读取。 读取激光束中心处的较高能量密度用于修改有源层的能量结构，使其能够承载表面等离子体激元。 因此激光束和如此修改的活性层的耦合可以激发介电层和有源层之间的界面中的表面等离子体激元。 这些表面等离子体激元被具有非常小尺寸的物理标记干扰并写入光存储介质中; 这些干扰产生可由检测器检测的远场光学响应。 该操作以超分辨率进行，表面等离激元仅在激光束的中心而不是在周边产生。 因此，可以写入并读取尺寸小于光学读取系统的理论分辨率的尺寸的标记。

公开(公告)号：US20110235488A1

公开(公告)日：2011-09-29

申请号：US12890085

申请日：2010-09-24

申请人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

发明人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

IPC分类号： G11B7/125

CPC分类号： G11B7/005 ,  G11B7/1267 ,  G11B7/24

摘要： The invention relates to the field of the optical recording of information on a medium, such as an optical disc. To read an optical disc in super-resolution mode, a procedure for optimizing the power of the read laser beam is implemented. This optimization is based on the observation that a correlation exists between the power allowing the disc to be read without risk in super-resolution mode and the amplitude of the read signal which results from the reading of marks having the smallest possible dimension (marks 2 T). The amplitude of the optical disc is measured for several powers of decreasing values of the read laser, the reduction in amplitude is observed. A read power is selected as a function of the power for which a decrease (for example 5%) is noted in the amplitude measured at the start.

摘要翻译： 本发明涉及光盘记录介质的领域，例如光盘。 为了以超分辨率模式读取光盘，实现了用于优化读取的激光束的功率的过程。 该优化基于这样的观察，即在超分辨率模式中允许读取光盘的功率不受影响的功率与由具有最小可能尺寸的标记的读取引起的读取信号的幅度之间存在相关性（标记2T ）。 对于读取激光器的数值降低的几个功率来测量光盘的幅度，观察到振幅的减小。 选择读取功率作为在开始时测量的振幅中注意到降低（例如5％）的功率的函数。

公开(公告)号：US20110075531A1

公开(公告)日：2011-03-31

申请号：US12889919

申请日：2010-09-24

申请人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

发明人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

IPC分类号： G11B7/12

CPC分类号： G11B7/24 ,  G11B7/1267

摘要： The invention relates to the field of the optical recording of information on a medium, such as an optical disc. To read an optical disc in super-resolution mode, a procedure for optimizing the power of the read laser beam is implemented. This optimization is based on the observation that a correlation exists between the power allowing the disc to be read without risk in super-resolution mode and the reflectivity of the sensitive layer containing the information. The reflectivity of the optical disc is measured for several power levels of the read laser, a critical power is determined on the basis of the reflectivity measurements made, and a read power sufficiently above the critical power, so as to be well outside a range of power levels entailing risks, is selected according to the critical power.

摘要翻译： 本发明涉及光盘记录介质的领域，例如光盘。 为了以超分辨率模式读取光盘，实现了用于优化读取的激光束的功率的过程。 这种优化是基于这样的观察，即在允许在超分辨率模式下不受风险地读取盘的功率和包含信息的敏感层的反射率之间存在相关性。 在读取激光器的几个功率电平上测量光盘的反射率，基于所做出的反射率测量和足够高于临界功率的读取功率来确定临界功率，以便很好地在 功率水平带来风险，是根据临界功率选择的。

公开(公告)号：US08355303B2

公开(公告)日：2013-01-15

申请号：US12889919

申请日：2010-09-24

申请人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

发明人： Fabien Laulagnet ,  Marie-Françoise Armand ,  Alain Fargeix ,  Bérangère Hyot

IPC分类号： G11B20/10

CPC分类号： G11B7/24 ,  G11B7/1267

摘要： The invention relates to the field of the optical recording of information on a medium, such as an optical disc. To read an optical disc in super-resolution mode, a procedure for optimizing the power of the read laser beam is implemented. This optimization is based on the observation that a correlation exists between the power allowing the disc to be read without risk in super-resolution mode and the reflectivity of the sensitive layer containing the information. The reflectivity of the optical disc is measured for several power levels of the read laser, a critical power is determined on the basis of the reflectivity measurements made, and a read power sufficiently above the critical power, so as to be well outside a range of power levels entailing risks, is selected according to the critical power.

摘要翻译： 本发明涉及光盘记录介质的领域，例如光盘。 为了以超分辨率模式读取光盘，实现了用于优化读取的激光束的功率的过程。 这种优化是基于这样的观察，即在允许在超分辨率模式下不受风险地读取盘的功率和包含信息的敏感层的反射率之间存在相关性。 在读取激光器的几个功率电平上测量光盘的反射率，基于所做出的反射率测量和足够高于临界功率的读取功率来确定临界功率，以便很好地在 功率水平带来风险，是根据临界功率选择的。

公开(公告)号：US20100149948A1

公开(公告)日：2010-06-17

申请号：US12598166

申请日：2008-04-30

申请人： Salim Mimouni ,  Fabien Laulagnet

发明人： Salim Mimouni ,  Fabien Laulagnet

IPC分类号： G11B7/00

CPC分类号： G11B7/0052 ,  G11B7/005 ,  G11B7/1367 ,  G11B7/1398 ,  G11B7/24 ,  G11B7/252

摘要： The invention relates to the writing and optical reading of high-density information. The higher energy density at the center of the reading laser beam is used for modifying the energy structure of an active layer in such a way as to make it capable of bearing surface plasmons. The coupling of the laser beam and the active layer thus modified can then excite surface plasmons in an interface between a dielectric layer and the active layer. These surface plasmons are disturbed by physical marks having very small dimensions and written in the optical storage medium; these disturbances generate a remote-field optical response which can be detected by a detector. The operation is carried out in super-resolution, the surface plasmons being generated only at the center of the laser beam and not at the periphery. It is therefore possible to write and to read again marks having dimensions of size smaller than the theoretical resolution of the optical reading system.

摘要翻译： 本发明涉及高密度信息的写入和光学读取。 读取激光束中心处的较高能量密度用于修改有源层的能量结构，使其能够承载表面等离子体激元。 因此激光束和如此修改的活性层的耦合可以激发介电层和有源层之间的界面中的表面等离子体激元。 这些表面等离子体激元被具有非常小尺寸的物理标记干扰并写入光存储介质中; 这些干扰产生可由检测器检测的远场光学响应。 该操作以超分辨率进行，表面等离激元仅在激光束的中心而不是在周边产生。 因此，可以写入并读取尺寸小于光学读取系统的理论分辨率的尺寸的标记。

公开(公告)号：US20100091625A1

公开(公告)日：2010-04-15

申请号：US12574275

申请日：2009-10-06

申请人： Salim MIMOUNI ,  Fabien LAULAGNET

发明人： Salim MIMOUNI ,  Fabien LAULAGNET

IPC分类号： G11B7/00

CPC分类号： G11B7/268 ,  G01N21/9506 ,  G11B7/00455 ,  G11B7/24

摘要： The subject matter is a test device for characterizing a material used in an optical storage medium (10). It comprises a laser source (20) intended to direct an incident laser beam (21) towards the optical storage medium (10), the incident laser beam (21) passing through a focusing objective (22) before reaching the optical storage medium (10) and before being reflected thereat as a reflected laser beam (25). It furthermore comprises a diaphragm (23) for reducing the numerical aperture of the incident laser beam (21) below that of the focusing objective (22), this diaphragm (23) being situated between the laser source (20) and the focusing objective (22) and an interception device (26) for intercepting a cross section of the reflected laser beam (25) after it traverses the focusing objective (22) but before it reaches the diaphragm (23).

摘要翻译： 主题是用于表征在光学存储介质（10）中使用的材料的测试装置。 它包括用于将入射激光束（21）引向光存储介质（10）的激光源（20），入射激光束（21）在到达光存储介质（10）之前通过聚焦物镜 ），然后作为反射激光束（25）反射。 它还包括用于将入射激光束（21）的数值孔径减小到低于聚焦物镜（22）的数值孔径的光阑（23），该光阑（23）位于激光源（20）和聚焦物镜 22）和用于在反射的激光束（25）穿过聚焦物镜（22）之后但在到达光阑（23）之前截取反射激光束（25）的截面的截取装置（26）。