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    PULSE-BURST ASSISTED ELECTROSPRAY IONIZATION MASS SPECTROMETER
    23.
    发明申请
    PULSE-BURST ASSISTED ELECTROSPRAY IONIZATION MASS SPECTROMETER 审中-公开
    脉冲激光辅助电喷雾离子质谱仪

    公开(公告)号：US20150187558A1

    公开(公告)日：2015-07-02

    申请号：US14142240

    申请日：2013-12-27

    Applicant: IMRA AMERICA, INC.

    Inventor： Andrew A. MILLS ,  Martin E. FERMANN ,  Jiahui PENG ,  Robert J. LEVIS

    IPC: H01J49/16 ,  G01N30/96 ,  G01N33/483 ,  G01N33/50 ,  G01N33/68 ,  G01N33/92 ,  G01N33/94 ,  G01N33/02 ,  H01J49/04 ,  G01N33/49

    CPC classification number: G01N33/02 ,  G01N30/7266 ,  G01N33/4833 ,  G01N33/49 ,  H01J49/0463

    Abstract: The present invention relates to a mass spectrometer system, which combines laser desorption with pulse bursts comprising a train of ultrashort pulses and electrospray ionization. The pulse separation between individual pulses within the pulse burst is selected such that transient phenomena on an irradiated sample do not fully relax between individual pulses. Pulses with pulse widths ranging from fs to sub ns are conveniently implemented. The pulse widths can be selected to allow for multi-photon excitation of a sample while at the same time minimizing heat accumulation in a sample. Low cost laser systems such as fiber lasers can be configured to generate appropriate pulse bursts. The technique is suitable for mass spectrometry imaging with high spatial resolution. The laser system can serve as an electronic clock to which the whole mass spectrometry system or mass spectrometry imaging system is synchronized.

    Abstract translation: 本发明涉及一种将激光解吸与脉冲串组合在一起的质谱仪系统，脉冲串包括一串超短脉冲串和电喷雾电离。 选择脉冲脉冲串内的各个脉冲之间的脉冲间隔，使得被照射样品上的瞬态现象在各个脉冲之间不完全松弛。 脉冲宽度范围从fs到sub ns的脉冲是方便的。 可以选择脉冲宽度以允许样品的多光子激发，同时最小化样品中的热积聚。 诸如光纤激光器的低成本激光系统可被配置成产生适当的脉冲串。 该技术适用于具有高空间分辨率的质谱成像。 激光系统可以用作整个质谱系统或质谱成像系统同步的电子时钟。

    PULSED LASER PROCESSING METHOD FOR PRODUCING SUPERHYDROPHOBIC SURFACES
    25.
    发明申请
    PULSED LASER PROCESSING METHOD FOR PRODUCING SUPERHYDROPHOBIC SURFACES 审中-公开
    用于生产超级表面的脉冲激光加工方法

    公开(公告)号：US20140314995A1

    公开(公告)日：2014-10-23

    申请号：US14323431

    申请日：2014-07-03

    Applicant: IMRA AMERICA, INC.

    Inventor： Bing LIU ,  Yuki ICHIKAWA

    IPC: B23K26/00

    CPC classification number: B23K26/355 ,  B05D3/06 ,  B05D5/08 ,  B05D5/083 ,  B05D2451/00 ,  B23K26/009 ,  C21D1/09 ,  C21D10/00 ,  C21D2201/00 ,  Y10T428/24355 ,  B05D2401/32 ,  B05D2401/40

    Abstract: A method of pulsed laser processing of solid surface for enhancing surface hydrophobicity is disclosed wherein the solid surface is covered with a transparent medium during laser processing and the laser beam incidents through the covering medium and irradiates the solid surface. Two effects are obtained simultaneously. One is the laser-induced texture formation directly under the laser irradiation. The other is the deposition of the laser-removed materials along the laser scan lines. Both effects introduce surface roughness on nanometer scales, and both enhance surface hydrophobicity, rendering superhydrophobicity on the surfaces of both the laser-irradiated solid and the covering medium. Because the beam scan line spacing can be larger than a single scan line width by multiple times, this method provides a high processing speed of square inch per minute and enables large area processing.

    Abstract translation: 公开了一种用于提高表面疏水性的固体表面的脉冲激光加工方法，其中固体表面在激光加工期间被透明介质覆盖，并且激光束通过覆盖介质入射并照射固体表面。 同时获得两个效果。 一种是直接在激光照射下的激光诱导纹理形成。 另一种是激光去除材料沿着激光扫描线的沉积。 这两种效应都会在纳米尺度上引入表面粗糙度，同时增强表面疏水性，从而在激光照射的固体和覆盖介质的表面上产生超疏水性。 由于光束扫描线间距可以大于单个扫描线宽度多次，因此该方法提供了高达每分钟平方英寸的处理速度，可实现大面积处理。

    Large core holey fibers
    26.
    发明授权
    Large core holey fibers 有权
    大核心多孔纤维

    公开(公告)号：US08861913B2

    公开(公告)日：2014-10-14

    申请号：US13610227

    申请日：2012-09-11

    Applicant: Liang Dong ,  Donald J. Harter ,  William Wong

    Inventor： Liang Dong ,  Donald J. Harter ,  William Wong

    IPC: G02B6/36 ,  G02B6/32 ,  H01S3/00 ,  H01S3/067 ,  G02B6/02 ,  G02B6/14

    CPC classification number: G02B6/032 ,  G02B6/02009 ,  G02B6/02047 ,  G02B6/02328 ,  G02B6/02338 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/024 ,  G02B6/14 ,  G02B6/32 ,  H01S3/06716 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/06741 ,  H01S3/06754

    Abstract: Holey fibers provide optical propagation. In various embodiments, a large core holey fiber comprises a cladding region formed by large holes arranged in few layers. The number of layers or rows of holes about the large core can be used to coarse tune the leakage losses of the fundamental and higher modes of a signal, thereby allowing the non-fundamental modes to be substantially eliminated by leakage over a given length of fiber. Fine tuning of leakage losses can be performed by adjusting the hole dimension and/or spacing to yield a desired operation with a desired leakage loss of the fundamental mode. Resulting holey fibers have a large hole dimension and spacing, and thus a large core, when compared to traditional fibers and conventional fibers that propagate a single mode. Other loss mechanisms, such as bend loss and modal spacing can be utilized for selected modes of operation of holey fibers.

    Abstract translation: 多孔纤维提供光学传播。 在各种实施例中，大的核心多孔纤维包括由几个布置成几层的大孔形成的包层区域。 可以使用围绕大芯的多个层或多排的孔来粗调基本信号和较高模式的信号的泄漏损耗，从而通过在给定长度的光纤上的泄漏来基本上消除非基本模式 。 可以通过调节孔尺寸和/或间距来实现漏电损耗的微调，以产生所需的基本模式的泄漏损耗的操作。 与传统单模的传统纤维和常规纤维相比，所产生的多孔纤维具有较大的孔尺寸和间距，因此具有较大的纤芯。 诸如弯曲损耗和模态间隔的其它损耗机制可以用于多孔纤维的选定操作模式。

    Nanoparticle production in liquid with multiple-pulse ultrafast laser ablation
    27.
    发明授权
    Nanoparticle production in liquid with multiple-pulse ultrafast laser ablation 有权
    多脉冲超快激光烧蚀液中纳米粒子生产

    公开(公告)号：US08858676B2

    公开(公告)日：2014-10-14

    申请号：US12951423

    申请日：2010-11-22

    Applicant: Bing Liu ,  Zhendong Hu ,  Yong Che ,  Makoto Murakami

    Inventor： Bing Liu ,  Zhendong Hu ,  Yong Che ,  Makoto Murakami

    IPC: B22F9/14 ,  B01J19/12 ,  B22F9/04 ,  B22F1/00

    CPC classification number: B01J19/121 ,  B22F1/0018 ,  B22F9/04 ,  B22F2999/00 ,  Y10S977/889 ,  B22F2202/11

    Abstract: A method for generating nanoparticles in a liquid comprises generating groups of ultrafast laser pulses, each pulse in a group having a pulse duration of from 10 femtoseconds to 200 picoseconds, and each group containing a plurality of pulses with a pulse separation of 1 to 100 nanoseconds and directing the groups of pulses at a target material in a liquid to ablate it. The multiple pulse group ablation produces nanoparticles with a reduced average size, a narrow size distribution, and improved production efficiency compared to prior pulsed ablation systems.

    Abstract translation: 用于在液体中产生纳米颗粒的方法包括产生超快激光脉冲组，组中的每个脉冲具有10飞秒至200皮秒的脉冲持续时间，并且每组包含脉冲间隔为1至100纳秒的多个脉冲 并将脉冲组定向在液体中的目标材料以烧蚀它。 与先前的脉冲消融系统相比，多脉冲组消融产生具有降低的平均尺寸，窄尺寸分布和提高的生产效率的纳米颗粒。

    Compact optical frequency comb systems
    29.
    发明授权
    Compact optical frequency comb systems 有权
    紧凑型光频梳系统

    公开(公告)号：US08792525B2

    公开(公告)日：2014-07-29

    申请号：US13481211

    申请日：2012-05-25

    Applicant: Martin E. Fermann ,  Thomas R. Schibli ,  Ingmar Hartl

    Inventor： Martin E. Fermann ,  Thomas R. Schibli ,  Ingmar Hartl

    IPC: H01S3/10

    CPC classification number: H01S3/1115 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/08059 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1053 ,  H01S3/1118 ,  H01S3/1616 ,  H01S3/176

    Abstract: Compact optical frequency sources are described. The comb source may include an intra-cavity optical element having a multi-material integrated structure with an electrically controllable active region. The active region may comprise a thin film. By way of example, the thin film and an insulating dielectric material disposed between two electrodes can provide for rapid loss modulation. In some embodiments the thin film may comprise graphene. In various embodiments of a frequency comb laser, rapid modulation of the CEO frequency can be implemented via electric modulation of the transmission or reflection loss of an additional optical element, which can be the saturable absorber itself. In another embodiment, the thin film can also be used as a saturable absorber in order to facilitate passive modelocking. In some implementations the optical element may be formed on a cleaved or polished end of an optical fiber.

    Abstract translation: 描述了紧凑的光频源。 梳状光源可以包括具有电子可控有源区域的多材料集成结构的腔内光学元件。 有源区可以包括薄膜。 作为示例，设置在两个电极之间的薄膜和绝缘介电材料可以提供快速损耗调制。 在一些实施例中，薄膜可以包括石墨烯。 在频率梳状激光器的各种实施例中，CEO频率的快速调制可以通过附加光学元件的传输或反射损耗的电调制来实现，其可以是可饱和吸收体本身。 在另一个实施例中，薄膜也可以用作饱和吸收体，以便于被动锁模。 在一些实施方案中，光学元件可以形成在光纤的切割或抛光端上。

    PULSED LASER MICRO-DEPOSITION PATTERN FORMATION
    30.
    发明申请
    PULSED LASER MICRO-DEPOSITION PATTERN FORMATION 审中-公开
    脉冲激光微沉积图形成

    公开(公告)号：US20140161998A1

    公开(公告)日：2014-06-12

    申请号：US14178414

    申请日：2014-02-12

    Applicant: IMRA AMERICA, INC.

    Inventor： BING LIU ,  Zhendong Hu ,  Makoto Murakami ,  Jingzhou Xu ,  Yong Che

    IPC: C23C20/04 ,  B44F1/10

    CPC classification number: C23C20/04 ,  B41M5/262 ,  B41M5/267 ,  B44F1/10 ,  C23C14/28 ,  C23C14/3435 ,  G02B26/101 ,  Y10T428/24802 ,  Y10T428/24917

    Abstract: A method of forming patterns on transparent substrates using a pulsed laser is disclosed. Various embodiments include an ultrashort pulsed laser, a substrate that is transparent to the laser wavelength, and a target plate. The laser beam is guided through the transparent substrate and focused on the target surface. The target material is ablated by the laser and is deposited on the opposite substrate surface. A pattern, for example a gray scale image, is formed by scanning the laser beam relative to the target. Variations of the laser beam scan speed and scan line density control the material deposition and change the optical properties of the deposited patterns, creating a visual effect of gray scale. In some embodiments patterns may be formed on a portion of a microelectronic device during a fabrication process. In some embodiments high repetition rate picoseconds and nanosecond sources are configured to produce the patterns.

    Abstract translation: 公开了使用脉冲激光在透明基板上形成图案的方法。 各种实施例包括超短脉冲激光器，对激光波长透明的衬底和靶板。 激光束被引导通过透明基板并聚焦在目标表面上。 目标材料被激光烧蚀并沉积在相对的基板表面上。 通过相对于目标扫描激光束来形成例如灰度图像的图案。 激光束扫描速度和扫描线密度的变化控制材料沉积并改变沉积图案的光学性质，产生灰度的视觉效果。 在一些实施例中，可以在制造过程期间在微电子器件的一部分上形成图案。 在一些实施例中，高重复率皮秒和纳秒源被配置为产生图案。

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