公开(公告)号：US07426028B2

公开(公告)日：2008-09-16

申请号：US11375882

申请日：2006-03-14

申请人： Christopher W. Carr ,  Stavros Demos ,  Michael D. Feit ,  Alexander M. Rubenchik

发明人： Christopher W. Carr ,  Stavros Demos ,  Michael D. Feit ,  Alexander M. Rubenchik

IPC分类号： G01J3/28

CPC分类号： G01J3/28 ,  G01J3/443

摘要： Optical breakdown by predetermined laser pulses in transparent dielectrics produces an ionized region of dense plasma confined within the bulk of the material. Such an ionized region is responsible for broadband radiation that accompanies a desired breakdown process. Spectroscopic monitoring of the accompanying light in real-time is utilized to ascertain the morphology of the radiated interaction volume. Such a method and apparatus as presented herein, provides commercial realization of rapid prototyping of optoelectronic devices, optical three-dimensional data storage devices, and waveguide writing.

摘要翻译： 在透明电介质中通过预定的激光脉冲进行的光学击穿产生在该材料的主体内限制的致密等离子体的电离区域。 这样的电离区域负责伴随着所需的击穿过程的宽带辐射。 利用对实时伴随光的光谱监测来确定辐射相互作用体积的形态。 这样的方法和装置提供了光电器件，光学三维数据存储器件和波导写入的快速原型的商业实现。

公开(公告)号：US5720894A

公开(公告)日：1998-02-24

申请号：US584522

申请日：1996-01-11

申请人： Joseph Neev ,  Luiz B. Da Silva ,  Dennis L. Matthews ,  Michael E. Glinsky ,  Brent C. Stuart ,  Michael D. Perry ,  Michael D. Feit ,  Alexander M. Rubenchik

发明人： Joseph Neev ,  Luiz B. Da Silva ,  Dennis L. Matthews ,  Michael E. Glinsky ,  Brent C. Stuart ,  Michael D. Perry ,  Michael D. Feit ,  Alexander M. Rubenchik

IPC分类号： A61B18/20 ,  A61B18/26 ,  A61C3/02 ,  A61N5/06 ,  B23K26/03 ,  B23K26/06 ,  B23K26/18 ,  B23K26/36 ,  B23K26/40 ,  C06B21/00 ,  B44C1/22

CPC分类号： B23K26/0665 ,  A61B18/20 ,  A61B18/26 ,  A61C1/0046 ,  B23K26/032 ,  B23K26/0624 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/18 ,  B23K26/40 ,  B23K26/402 ,  C06B21/0033 ,  A61B2018/00636 ,  B23K2203/05 ,  B23K2203/10 ,  B23K2203/30

摘要： A method and apparatus is disclosed for fast, efficient, precise and damage-free biological tissue removal using an ultrashort pulse duration laser system operating at high pulse repetition rates. The duration of each laser pulse is on the order of about 1 fs to less than 50 ps such that energy deposition is localized in a small depth and occurs before significant hydrodynamic motion and thermal conduction, leading to collateral damage, can take place. The depth of material removed per pulse is on the order of about 1 micrometer, and the minimal thermal and mechanical effects associated with this ablation method allows for high repetition rate operation, in the region 10 to over 1000 Hertz, which, in turn, achieves high material removal rates. The input laser energy per ablated volume of tissue is small, and the energy density required to ablate material decreases with decreasing pulse width. The ablation threshold and ablation rate are only weakly dependent on tissue type and condition, allowing for maximum flexibility of use in various biological tissue removal applications. The use of a chirped-pulse amplified Titanium-doped sapphire laser is disclosed as the source in one embodiment.

摘要翻译： 公开了使用以高脉冲重复率操作的超短脉冲持续时间激光系统来快速，有效，精确和无损伤的生物组织去除的方法和装置。 每个激光脉冲的持续时间约为1fs至小于50ps，使得能量沉积位于较小的深度并发生在显着的水动力运动和热传导之间，导致附带损伤。 每个脉冲去除的材料的深度约为1微米，并且与该消融方法相关的最小的热和机械效应允许在10至超过1000赫兹的区域中的高重复率操作，这进而达到 高材料去除率。 每个消融体积的组织的输入激光能量很小，消融材料所需的能量密度随着脉冲宽度的减小而减小。 消融阈值和消融率只是弱取决于组织类型和条件，允许在各种生物组织去除应用中使用的最大灵活性。 在一个实施例中公开了使用啁啾脉冲放大钛掺杂蓝宝石激光器作为源。

公开(公告)号：US06518539B2

公开(公告)日：2003-02-11

申请号：US09948444

申请日：2001-09-07

申请人： Lloyd A. Hackel ,  Alan K. Burnham ,  Bernardino M. Penetrante ,  Raymond M. Brusasco ,  Paul J. Wegner ,  Lawrence W. Hrubesh ,  Mark R. Kozlowski ,  Michael D. Feit

发明人： Lloyd A. Hackel ,  Alan K. Burnham ,  Bernardino M. Penetrante ,  Raymond M. Brusasco ,  Paul J. Wegner ,  Lawrence W. Hrubesh ,  Mark R. Kozlowski ,  Michael D. Feit

IPC分类号： B23K2600

CPC分类号： C03C23/002 ,  C03C15/00 ,  C03C23/0025

摘要： The present invention provides a system that mitigates the growth of surface damage in an optic. Damage to the optic is minimally initiated. In an embodiment of the invention, damage sites in the optic are initiated, located, and then treated to stop the growth of the damage sites. The step of initiating damage sites in the optic includes a scan of the optic using a laser to initiate defects. The exact positions of the initiated sites are identified. A mitigation process is performed that locally or globally removes the cause of subsequent growth of the damaged sites.

公开(公告)号：US06570702B2

公开(公告)日：2003-05-27

申请号：US09793820

申请日：2001-02-16

申请人： Russel B. Wilcox ,  Ralph H. Page ,  Raymond J. Beach ,  Michael D. Feit ,  Stephen A. Payne

发明人： Russel B. Wilcox ,  Ralph H. Page ,  Raymond J. Beach ,  Michael D. Feit ,  Stephen A. Payne

IPC分类号： H04B1012

CPC分类号： H01S3/067 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0632 ,  H01S3/06704 ,  H01S3/06716 ,  H01S3/06729 ,  H01S3/094019 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/2383

摘要： The invention is a ribbon of an optical material with a plurality of cores that run along its length. The plurality of cores includes lasing impurity doped cores in an alternating spaced arrangement with index-modifying impurity doped cores. The ribbon comprises an index of refraction that is substantially equal to or greater than the indices of refraction of said array of lasing impurity doped cores. Index-increasing impurity doped cores promote antiguiding and leaky modes which provide more robust single “supermode” operation.