公开(公告)号：JP2014129608A

公开(公告)日：2014-07-10

申请号：JP2014038755

申请日：2014-02-28

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： LIU BING ,  HU ZHENDONG ,  MURAKAMI MAKOTO ,  CHE YONG

IPC: B22F9/14 ,  B22F1/00 ,  B22F9/00

CPC classification number: B02C19/18 ,  B01J13/0043 ,  B01J19/121 ,  B22F1/0022 ,  B22F9/04 ,  B22F2999/00 ,  B82Y30/00 ,  B22F2202/11

Abstract: PROBLEM TO BE SOLVED: To provide a method of producing metal and metal-alloy nanoparticle while preventing aggregation and eliminating the need of a stabilizing agent.SOLUTION: This invention relates to a method of producing metal and metal-alloy nanoparticle colloids with ultrafast pulsed laser ablation. A method comprises: irradiating a metal or metal alloy target submerged in a liquid with ultrashort laser pulses at a high repetition rate; cooling a portion of the liquid that includes an irradiated region; and collecting nanoparticles produced with the laser irradiation and liquid cooling. The method may be implemented with a high repetition rate ultrafast pulsed laser source, an optical system for focusing and moving the pulsed laser beams, a metal or metal alloy target submerged in a liquid, and a liquid circulating system to cool the laser focal volume and collect the nanoparticle products. By controlling various laser parameters, and with optional liquid flow oscillation, the method provides stable colloids of dispersed metal and metal-alloy nanoparticles.

Abstract translation: 要解决的问题：提供一种生产金属和金属合金纳米颗粒同时防止聚集并消除对稳定剂的需要的方法。解决方案：本发明涉及一种用超快速脉冲激光生产金属和金属合金纳米颗粒胶体的方法 消融。 一种方法包括：以高重复率以超短激光脉冲照射淹没在液体中的金属或金属合金靶; 冷却包含照射区域的液体的一部分; 并收集用激光照射和液体冷却产生的纳米颗粒。 该方法可以用高重复率超快脉冲激光源，用于聚焦和移动脉冲激光束的光学系统，浸没在液体中的金属或金属合金靶和液体循环系统来实现，以冷却激光聚焦体积， 收集纳米颗粒产品。 通过控制各种激光参数，以及可选的液流振荡，该方法提供分散金属和金属合金纳米颗粒的稳定胶体。

公开(公告)号：JP2014029537A

公开(公告)日：2014-02-13

申请号：JP2013179477

申请日：2013-08-30

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： DONG LIANG ,  LI JUN ,  MCKAY HUGH ,  FU LIBIN ,  MARCINKEVICIUS ANDRIUS

IPC: G02B6/00 ,  B23K26/064 ,  G02B6/42 ,  H01S3/067

CPC classification number: G02B6/0288 ,  G02B6/02009 ,  G02B6/02333 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/02371 ,  G02B6/0283 ,  G02B6/14 ,  H01S3/06729 ,  H01S3/06754 ,  H01S3/091 ,  H01S3/11

Abstract: PROBLEM TO BE SOLVED: To provide an all-glass photonic crystal fiber (PCF) which can deliver high power optical beams.SOLUTION: An optical fiber 100 is an all-glass photonic crystal fiber (PCF), which comprises a core region 101 and N (N>2) layers of low refractive index features 102 surrounding the core region 101 and is configured to propagate and guide a fundamental mode substantially in a region bordered by the core region 101.

Abstract translation: 要解决的问题：提供可以提供高功率光束的全玻璃光子晶体光纤（PCF）。解决方案：光纤100是全玻璃光子晶体光纤（PCF），其包括核心区域101和 N（N> 2）层的低折射率特征102围绕核心区域101并且被配置为基本上传播和引导基本上在由核心区域101界定的区域中的基本模式。

公开(公告)号：JP2014012897A

公开(公告)日：2014-01-23

申请号：JP2013168848

申请日：2013-08-15

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： HU ZHENDONG ,  CHE YONG ,  LIU BING

IPC: C23C14/08 ,  C23C14/28 ,  H01L21/363

CPC classification number: C30B23/08 ,  C23C14/083 ,  C23C14/28 ,  C30B29/16

Abstract: PROBLEM TO BE SOLVED: To provide a method of depositing crystalline titanium dioxide (TiO) nanoparticles or crystalline titanium dioxide (TiO) nanocomposite (nanoparticle aggregate) films on a substrate surface.SOLUTION: On a surface of a target of titanium containing materials, a plume of particles directed to a substrate is generated by ablation using high-speed laser pulse, to deposit crystalline TiOnanoparticles or crystalline TiOnanocomposite films on the substrate surface. In the deposition, the substrate is not heated, but at room temperature; background pressure is 100 Pa or less; a fluence of the high-speed pulse on the surface of the target ranges from 0.01 to 2 J/cm; and a width of the high-speed pulse ranges from 10 fs to 100 ps.

Abstract translation: 要解决的问题：提供一种在基材表面上沉积结晶二氧化钛（TiO）纳米颗粒或结晶二氧化钛（TiO）纳米复合材料（纳米颗粒聚集体））膜的方法。解决方案：在含钛材料的靶的表面上， 通过使用高速激光脉冲的烧蚀产生导向衬底的颗粒的羽流，以在衬底表面上沉积结晶TiO 2纳米颗粒或结晶TiO 2复合膜。 在沉积中，基板不加热，但在室温下; 背景压力为100Pa以下; 目标表面上的高速脉冲的能量密度范围为0.01至2J / cm; 并且高速脉冲的宽度范围为10fs至100ps。

公开(公告)号：JP2013168681A

公开(公告)日：2013-08-29

申请号：JP2013112938

申请日：2013-05-29

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： FERMANN MARTIN E ,  IMESHEV GENNADY ,  HARTL INGMAR ,  HARTER DONALD J DR

IPC: H01S3/067 ,  G02B6/26 ,  H01S20060101 ,  H01S3/00 ,  H01S3/10 ,  H01S3/23

CPC classification number: H01S3/06754 ,  H01S3/005 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/0092 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/094007 ,  H01S3/10015

Abstract: PROBLEM TO BE SOLVED: To provide a highly productive fiber chirped pulse amplification system which exhibits a high pulse stretching ratio and a high pulse compression ratio.SOLUTION: A polarization maintaining air-clad fiber comprises: a core region; a material cladding region surrounding the core; air cladding which substantially surrounds the material cladding region; and a layer surrounding the air cladding. A polarization maintaining operation of the fiber is achieved by incorporating stress producing regions, which generate stress-induced birefringence in the air-clad fiber and are disposed completely inside the material cladding region and surrounded completely by the material cladding region.

Abstract translation: 要解决的问题：提供具有高脉冲拉伸比和高脉冲压缩比的高效率的光纤啁啾脉冲放大系统。解决方案：一种偏振保持型空气包层光纤包括：芯区; 围绕芯的材料包层区域; 基本上围绕材料包层区域的空气包层; 以及围绕空气包层的层。 通过在空气包层光纤中引入应力引起的双折射的应力产生区域并且完全设置在材料包层区域内并被材料包层区域完全包围的方式来实现光纤的偏振维持操作。

公开(公告)号：JP2012209600A

公开(公告)日：2012-10-25

申请号：JP2012168758

申请日：2012-07-30

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： DONG LIANG ,  HARTER DONALD J DR ,  WONG WILLIAM

IPC: 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: PROBLEM TO BE SOLVED: To provide single-mode and multi-mode holey fibers having large core dimensions, and devices and systems that use such fibers as lasers and amplifiers.SOLUTION: Various types of holey fibers provide optical propagation. In various embodiments, for example, 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 core is 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 are performed by adjusting the hole dimension and/or the hole spacing to yield a desired operation with a desired leakage loss of the fundamental mode.

Abstract translation: 要解决的问题：提供具有大芯体尺寸的单模和多模多孔光纤，以及使用这种光纤作为激光器和放大器的装置和系统。 解决方案：各种有孔光纤提供光学传播。 在各种实施例中，例如，大的核心多孔纤维包括由几层布置的大孔形成的包层区域。 围绕芯的层或排的数量用于粗调信号的基本和较高模式的泄漏损耗，从而通过在给定长度的纤维上的泄漏来基本上消除非基本模式。 通过调整孔尺寸和/或孔间距来进行泄漏损耗的微调，以产生所需的基本模式的泄漏损失的操作。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012120858A

公开(公告)日：2012-06-28

申请号：JP2012019999

申请日：2012-02-01

Applicant: Carl Zeiss Meditec Ag ,  Imra America Inc ,  イムラ アメリカ, インク. ,  カール ツァイス メディテック エージー

Inventor： BENDETT MARK ,  BISCHOFF MARK ,  GERLACH MARIO ,  MUEHLHOFF DIRK

IPC: A61F9/008 ,  A61F9/01 ,  A61N5/067 ,  B23K26/06 ,  H01S3/00 ,  H01S3/067

CPC classification number: A61F9/0084 ,  A61F9/00827 ,  A61F9/00836 ,  A61F2009/00872 ,  B23K26/0624

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus for fast refraction-correction ophthalmologic surgery in order to change the corneal curvature in a controlled way.SOLUTION: The apparatus is composed of: a pulse laser device 110 having an optical fiber gain medium and giving a pulse repetition rate larger than 100,000 pulses per second and a per-pulse length of less than a few picosecond; and an optical path including a scanning head operably coupled to receive laser light 129 from the pulse laser device and operable to scan an output light pattern suitable to sculpt tissue for a surgical procedure using at least 100,000 pulses in less than 10 seconds.

Abstract translation: 要解决的问题：提供用于快速折射校正眼科手术的装置，以便以受控的方式改变角膜曲率。 解决方案：该装置包括：具有光纤增益介质并且给出大于每秒100,000个脉冲的脉冲重复率和小于几皮秒的每脉冲长度的脉冲激光装置110; 以及光路，其包括可操作地耦合以从脉冲激光装置接收激光129的扫描头，并且可操作以在少于10秒内使用至少100,000个脉冲扫描适合于外科手术的组织的输出光图案。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011138143A

公开(公告)日：2011-07-14

申请号：JP2011014254

申请日：2011-01-26

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： DONG LIANG ,  HARTER DONALD J DR ,  WONG WILLIAM

IPC: G02B6/00 ,  G02B6/02 ,  G02B6/032 ,  G02B6/14 ,  H01S3/06 ,  H01S3/10

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: PROBLEM TO BE SOLVED: To provide large core holey fibers, and to provide a device and system using these fibers for laser and an amplifier. SOLUTION: A large core holey fiber includes 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. Fine tuning of leakage losses can be performed by adjusting the hole dimension and/or the hole 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. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供大的核心多孔纤维，并提供使用这些光纤的装置和系统用于激光和放大器。 解决方案：大核心多孔纤维包括由几层排列的大孔形成的包层区域。 可以使用围绕大芯的层或排的数量来粗调基本信号和较高模式的信号的泄漏损耗，从而允许通过泄漏基本上消除非基本模式。 泄漏损失的微调可以通过调整孔尺寸和/或孔间距来实现，以产生所需的基本模式的泄漏损失的操作。 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距的其它损耗机制可用于多孔纤维的选定操作模式。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011006793A

公开(公告)日：2011-01-13

申请号：JP2010167263

申请日：2010-07-26

Applicant: Imra America Inc ,  イムラ アメリカ インコーポレイテッド

Inventor： BIN RIU ,  ZHENDONG HU ,  YONG CHE ,  YUZURU UEHARA

IPC: C23C14/04 ,  C23C14/08 ,  H01L21/363

CPC classification number: C23C14/22 ,  C23C14/083 ,  C23C14/28

Abstract: PROBLEM TO BE SOLVED: To provide a method for depositing a transparent thin film and directly depositing a pattern structure.SOLUTION: In the method where a transparent thin film is deposited, and a pattern structure is directly deposited, a pulse laser source is provided, a laser 1 emitted by the pulse laser source is condensed on a target 5 via a transparent substrate 3, the part of the target is melted away or evaporated using the energy of the laser, the substrate is translated to the target, the material of the target melted away or evaporated is deposited on the substrate, and a pattern structure can be formed on the substrate.

Abstract translation: 要解决的问题：提供一种沉积透明薄膜并直接沉积图案结构的方法。解决方案：在沉积透明薄膜并直接沉积图案结构的方法中，提供脉冲激光源， 由脉冲激光源发射的激光器1通过透明基板3在目标5上冷凝，使用激光的能量使目标物的一部分熔化或蒸发，将基板平移到目标物 目标熔化或蒸发沉积在基板上，并且可以在基板上形成图案结构。

公开(公告)号：JP2002323636A

公开(公告)日：2002-11-08

申请号：JP2002072975

申请日：2002-03-15

Applicant: IMRA AMERICA INC

Inventor： FERMANN MARTIN E ,  HARTER DONALD J DR

IPC: G02B6/02 ,  G02B6/024 ,  G02B6/036 ,  G02B6/44 ,  H01S3/06 ,  H01S3/067 ,  H01S3/098 ,  H01S3/10 ,  G02B6/17 ,  G02B6/10 ,  G02B6/22

Abstract: PROBLEM TO BE SOLVED: To provide a fiber which is decreased in the amount of polarization mode coupling and polarization mode dispersion and is increased in polarization maintaining ability and to provide a polarization maintaining high-efficiency fiber amplifier or laser of such a large external diameter that pumping light is guided within an inner clad while a larger outer clad ensures the decrease of the mode coupling in the fiber core. SOLUTION: The high-power polarization maintaining fiber taking the degree of the double refraction of the core, the sectional shape of the clad and the shape for polarization maintaining into consideration is decreased in the stress in the fiber core by increasing the fiber diameter to minimize the polarization mode coupling, by which the polarization mode coupling is minimized and the insensibility of the polarization state with respect to bending and temperature changing of the fiber on the outer side is achieved or the polarization mode coupling is minimized by optimization of the fiber coating in order to minimize the stress at the boundary between the fiber and the coating and eventually the insensibility to the polarization mode coupling is obtained by the value of the double refractivity drastically decreased as compared with the fiber of a small diameter.

公开(公告)号：JP2000200931A

公开(公告)日：2000-07-18

申请号：JP33491499

申请日：1999-11-25

Applicant: IMRA AMERICA INC

Inventor： FERMANN MARTIN E

IPC: H01S3/06 ,  H01S3/067 ,  H01S3/098

Abstract: PROBLEM TO BE SOLVED: To greatly increase peak power limit of usual mode-locked single mode fiber laser by using a resonator design, which enables stable generation of high peak power pulse from a mode-locked multi-mode fiber laser. SOLUTION: Light from a pump light source 51, such as a laser light source having a wavelength close to 980 nm and an output power of 5 W is injected through a fiber flux 57. The pump light is injected to an end part 53 of a multi- mode fiber 13 which is relevant to a single mode fiber 17. A pumping light is coupled to a resonator 11 by a pump signal injector 55, such as a two-color beam splitter for wavelength of 980/1550 nm. Lenses 47, 48 are optimized for coupling pump power from a fiber 57 to cladding of a multi-mode fiber. Therefore, peak pulse power at a mode-locked pulse light source used for generating ultrashort light pulse is increased.