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25 条记录 (耗时 0.024 秒)

    Method of and apparatus for laser-assisted therapy
    13.
    发明授权
    Method of and apparatus for laser-assisted therapy 失效
    激光辅助治疗的方法和装置

    公开(公告)号：US5071416A

    公开(公告)日：1991-12-10

    申请号：US517762

    申请日：1990-05-02

    申请人： Donald F. Heller ,  John C. Walling ,  Robert S. Anderson

    发明人： Donald F. Heller ,  John C. Walling ,  Robert S. Anderson

    IPC分类号： A61N5/06 ,  A61N5/067 ,  H01S3/30

    CPC分类号： H01S3/30 ,  A61N5/0601 ,  A61N5/062 ,  A61N2005/067

    摘要： A laser beam from a tunable solid state laser such as an alexandrite laser passes through a Raman shifter to produce a Raman-emitted beam with wavelength shifted so as to be able to activate a preselected photosensitizer for medical treatment. A combination of a laser and a Raman shifter with or without additionally a harmonic generator such as a frequency doubler may be also selected such that radiation with two different wavelengths can be obtained for treatment and detection.

    摘要翻译： 来自可调固态激光器（例如亚历山大雕刻激光器）的激光束通过拉曼移位器以产生波长偏移的拉曼发射光束，以便能够激活用于医疗的预选光敏剂。 还可以选择激光器和具有或不具有诸如倍频器的谐波发生器的拉曼移位器的组合，使得可以获得具有两个不同波长的辐射用于处理和检测。

    Moire microscope
    14.
    发明授权
    Moire microscope 失效
    莫尔显微镜

    公开(公告)号：US4577940A

    公开(公告)日：1986-03-25

    申请号：US683832

    申请日：1984-12-19

    申请人： Jerzy S. Krasinski ,  Donald F. Heller ,  Oded Kafri

    发明人： Jerzy S. Krasinski ,  Donald F. Heller ,  Oded Kafri

    IPC分类号： G02B27/60 ,  G02B21/36

    CPC分类号： G02B27/60

    摘要： A moire microscope comprises an objective lens, a collimating lens, and a pair of spaced-apart gratings arrayed along an optic axis and adapted for providing a magnified moire deflectogram of a phase object. The microscope provides a simple apparatus for preparing a map of optical thickness gradients, from which quantitative data concerning the object can be computed.

    摘要翻译： 莫尔显微镜包括物镜，准直透镜和沿着光轴排列的一对间隔开的光栅，并且适于提供相位物体的放大的莫尔条纹偏转图。 显微镜提供了一种用于准备光学厚度梯度图的简单设备，从中可以计算出关于物体的定量数据。

    Laser devices utilizing alexandrite laser operating at or near its gain peak as shorter-wavelength pumping sources and methods of use thereof
    15.
    发明授权
    Laser devices utilizing alexandrite laser operating at or near its gain peak as shorter-wavelength pumping sources and methods of use thereof 有权
    利用在其增益峰值附近操作的亚历山大·雷射激光器的激光装置作为较短波长泵浦源及其使用方法

    公开(公告)号：US09351793B2

    公开(公告)日：2016-05-31

    申请号：US14216387

    申请日：2014-03-17

    申请人： Chunbai Wu ,  Donald F. Heller

    发明人： Chunbai Wu ,  Donald F. Heller

    IPC分类号： H01S3/16 ,  A61B18/20 ,  H01S3/04 ,  H01S3/06 ,  A61B18/00 ,  H01S3/094 ,  H01S3/00 ,  H01S3/02 ,  H01S3/042

    CPC分类号： A61B18/203 ,  A61B2018/00452 ,  A61B2018/2035 ,  A61B2018/2065 ,  H01S3/0007 ,  H01S3/005 ,  H01S3/025 ,  H01S3/0404 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/061 ,  H01S3/094038 ,  H01S3/1616 ,  H01S3/1643

    摘要： In some embodiments, the instant invention provides for a system that includes at least the following components: (i) an Alexandrite laser pumping subsystem; where the Alexandrite laser pumping subsystem is configured to: 1) produce wavelengths between 700 and 820 nm, and 2) produce a pump pulse having: i) a duration between 1 to 10 milliseconds, and ii) an energy measuring up to 100 Joules; where the Alexandrite laser pumping subsystem includes: 1) an optical fiber, and 2) a Lens system, (ii) a Thulium doped Yttrium Aluminum Garnet (Tm:YAG) laser subsystem; where the Tm:YAG laser subsystem includes: 1) a Tm:YAG gain medium, 2) a rod heat sink, and 3) at least one cooling device, (iii) a wavelength selecting device, where the wavelength selecting device is configured to deliver a wavelength between 1.75 microns to 2.1 microns; and where the system is configured to produce a high energy conversion efficiency.

    摘要翻译： 在一些实施例中，本发明提供了至少包括以下部件的系统：（i）亚历山大号激光泵浦子系统; 其中Alexandrite激光泵浦子系统被配置为：1）产生700和820nm之间的波长，以及2）产生泵浦脉冲，其具有：i）1至10毫秒之间的持续时间，以及ii）测量高达100焦耳的能量; Alexandrite激光泵浦子系统包括：1）光纤，2）透镜系统，（ii）掺a钇铝石榴石（Tm：YAG）激光子系统; 其中Tm：YAG激光子系统包括：1）Tm：YAG增益介质，2）棒状散热器，以及3）至少一个冷却装置，（iii）波长选择装置，其中波长选择装置被配置为 传递1.75微米至2.1微米的波长; 并且其中系统被配置为产生高能量转换效率。

    Narrow spectral bandwidth tunable pulsed solid-state laser system
    16.
    发明授权
    Narrow spectral bandwidth tunable pulsed solid-state laser system 有权
    窄谱带宽可调脉冲固态激光系统

    公开(公告)号：US06876689B2

    公开(公告)日：2005-04-05

    申请号：US09876678

    申请日：2001-06-07

    申请人： John Curtis Walling ,  Donald F. Heller

    发明人： John Curtis Walling ,  Donald F. Heller

    IPC分类号： H01S3/083 ,  H01S3/109 ,  H01S3/16 ,  H01S3/23 ,  H01S5/12

    CPC分类号： H01S3/10092 ,  H01S3/083 ,  H01S3/109 ,  H01S3/1633 ,  H01S3/1636 ,  H01S3/1648 ,  H01S5/12

    摘要： A tunable solid-state laser system whose bandwidth and wavelength are controlled by the injection of light from a semiconductor diode laser. This laser system is capable of providing output light pulses over substantially all wavelength ranges in the electromagnetic spectrum. When suitably configured, it creates wavelength tunable (or fixed wavelength) pulses having spectral bandwidths that are Fourier transform limited and wavelength stabilized. The coupling means between the semiconductor diode laser and the ring laser cavity incorporates a means for optically isolating the diode laser source from optical feedback from the ring laser, ensuring diode laser source stability.

    摘要翻译： 一种可调谐固态激光系统，其带宽和波长通过从半导体二极管激光器的光注入来控制。 该激光系统能够在电磁光谱中的基本上所有波长范围上提供输出光脉冲。 当适当配置时，它产生波长可调谐（或固定波长）脉冲，其具有被傅里叶变换限制和波长稳定的频谱带宽。 半导体二极管激光器和环形激光腔之间的耦合装置包括用于将二极管激光源与环形激光器的光学反馈光学隔离的装置，确保二极管激光源的稳定性。

    Electronically induced multiphoton absorption
    17.
    发明授权
    Electronically induced multiphoton absorption 失效
    电子诱导多光子吸收

    公开(公告)号：US4350577A

    公开(公告)日：1982-09-21

    申请号：US93659

    申请日：1979-11-13

    申请人： Donald F. Heller

    发明人： Donald F. Heller

    IPC分类号： B01D59/34 ,  B01D59/00

    CPC分类号： B01D59/34

    摘要： Electronic excitation of polyatomic molecules followed by nonradiative decay provides states from which efficient multiphoton infrared excitation can be achieved. Initial (electronic) excitation can be molecule-specific or isotope-selective. Subsequent multiphoton excitation has a threshold which can be an order of magnitude or more lower than for multiphoton excitation from the ground state. By this method, laser-induced chemical reactions or isotope separation can be achieved with lower infrared laser fluence and/or higher concentration of polyatomic molecules than with prior art methods.

    摘要翻译： 多原子分子的电子激发随后是非辐射衰减，提供可以实现有效的多光子红外激发的状态。 初始（电子）激发可以是分子特异性或同位素选择性的。 随后的多光子激发具有的阈值可以比来自基态的多光子激发低一个数量级或更多。 通过这种方法，与现有技术方法相比，激光诱导的化学反应或同位素分离可以用较低的红外激光注量和/或更高浓度的多原子分子来实现。

    Optical parametric amplifiers and oscillators pumped by tunable laser sources
    20.
    发明授权
    Optical parametric amplifiers and oscillators pumped by tunable laser sources 失效
    可调激光源泵浦的光参量放大器和振荡器

    公开(公告)号：US5606453A

    公开(公告)日：1997-02-25

    申请号：US49955

    申请日：1993-04-20

    申请人： John C. Walling ,  Jui T. Lin ,  Mahendrakumar G. Jani ,  Richard C. Powell ,  Donald F. Heller

    发明人： John C. Walling ,  Jui T. Lin ,  Mahendrakumar G. Jani ,  Richard C. Powell ,  Donald F. Heller

    IPC分类号： G02F1/39 ,  H01S3/10 ,  H03F7/00

    CPC分类号： G02F1/39 ,  G02F2001/392

    摘要： Tunable optical parametric amplifiers and oscillators that are pumped by the light from a tunable laser source are disclosed. One possible embodiment uses a tunable solid-state laser pump and an OPA medium or nonlinear crystal, such as potassium titanyl phosphate KTP or barium borate BBO or lithium borate LBO. The second harmonic output from a tunable solid-state laser is also used to pump the OPA medium. A singly or doubly resonant cavity design is preferably used to reduce the oscillation threshold (i.e., the required pump beam power) of the OPO.

    摘要翻译： 公开了可调光学参量放大器和由可调谐激光源的光泵浦的振荡器。 一个可能的实施例使用可调谐固态激光泵和OPA介质或非线性晶体，例如磷酸钾钾KTP或硼酸钡BBO或硼酸锂LBO。 来自可调谐固态激光器的二次谐波输出也用于泵浦OPA介质。 优选使用单或双谐振腔设计来减少OPO的振荡阈值（即，所需的泵浦光束功率）。