公开(公告)号：WO2022142103A1

公开(公告)日：2022-07-07

申请号：PCT/CN2021/096283

申请日：2021-05-27

Applicant: 华南师范大学 ,  深圳市国华光电科技有限公司

Inventor： 周国富 ,  胡小文 ,  林炜熙 ,  姜小芳

IPC: H01S3/08 ,  H01S3/106 ,  H01S3/213 ,  H01S3/20

Abstract: 本发明公开了聚合物稳定液晶激光器及其制备方法和设备。该聚合物稳定液晶激光器包括激光器主体，激光器主体包括：第一透光导电层；第二透光导电层，与第一透光导电层相对设置；谐振腔单元，谐振腔单元位于第一透光导电层和第二透光导电层之间，谐振腔单元内填充有钙钛矿量子点聚合物稳定液晶。根据本发明实施例的聚合物稳定液晶激光器，至少具有如下有益效果：聚合物稳定液晶中的钙钛矿量子点具有较高的荧光量子产率，可以达到50～100％。极高的荧光量子产率使其更容易产生ASE，相应地更容易产生激光出射，也就进一步导致了更高的发射强度以及更低的激光阈值。

公开(公告)号：WO2020146637A1

公开(公告)日：2020-07-16

申请号：PCT/US2020/012939

申请日：2020-01-09

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： FAN, Xudong ,  WANG, Xueding ,  LI, Xuzhou ,  QIN, Yu ,  TAN, Xiaotian ,  CHEN, Yu-Cheng ,  CHEN, Qiushu

IPC: H01S3/213 ,  H01S3/20 ,  H01S3/10 ,  H01S3/08 ,  H01S3/094 ,  G01N21/62 ,  G01N21/63 ,  C09K11/06

Abstract: A laser whose emission is modulated by ultrasound is presented. The laser is usually micron-sized. In response to ultrasound modulation, the laser emission increases and decreases. Such a change in emission can be detected by external optical detectors. This type of laser can be used as a new type of imaging modality, in which laser emission in combination with sound waves or ultrasound waves, is used for imaging. Laser emission has a much narrower spectral linewidth and stronger intensity than fluorescence and therefore is able to achieve higher sensitivity, whereas sound waves are used to provide a better spatial resolution of the laser emission from the laser. In ultrasound modulated laser based imaging, multiple lasers can be placed inside cells or tissues.

公开(公告)号：WO2013164643A1

公开(公告)日：2013-11-07

申请号：PCT/GB2013/051166

申请日：2013-05-03

Applicant: ISIS INNOVATION LIMITED

Inventor： SMITH, Jason Michael ,  VALLANCE, Claire

IPC: H01S3/213 ,  H01S3/08 ,  H01S3/105 ,  H01S3/094

CPC classification number: H01S3/094034 ,  H01S3/08 ,  H01S3/08031 ,  H01S3/08045 ,  H01S3/105 ,  H01S3/213

Abstract: A miniature tunable dye laser comprises a pair of mirrors opposed along an optical axis and shaped to provide an optical cavity with stable resonance in at least one mode and having a cavity length of at most 50µm. A laser dye is inside the optical cavity. A laser pump illuminates the dye with pump EM radiation having a band of wavelengths that is wider than the mode of said cavity An actuator system moves move the mirrors relative to each other along the length of the optical cavity for tuning the wavelength of the mode of said cavity.

Abstract translation: 微型可调染料激光器包括沿着光轴相对的一对镜，其被成形为在至少一种模式中提供具有至少50μm的腔长度的稳定共振的光学腔。 激光染料位于光腔内。 激光泵利用具有比所述空腔的模式更宽的波长带的泵EM辐射来照亮染料。致动器系统沿着光学腔的长度移动反射镜相对于彼此的长度，以调谐 说腔

公开(公告)号：WO2006086551A3

公开(公告)日：2006-08-17

申请号：PCT/US2006/004577

申请日：2006-02-08

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE ,  MASSACHUSETTS INSTITUTE OF TECHNOLOGY ,  MAYERS, Brian, T. ,  CONROY, Richard, S. ,  VEZENOV, Dmitri, V. ,  SNEE, Preston ,  CHAN, Yinthai ,  BAWENDI, Moungi, G. ,  WHITESIDES, George, M.

Inventor： MAYERS, Brian, T. ,  CONROY, Richard, S. ,  VEZENOV, Dmitri, V. ,  SNEE, Preston ,  CHAN, Yinthai ,  BAWENDI, Moungi, G. ,  WHITESIDES, George, M.

IPC: H01S3/05 ,  H01S3/20 ,  H01S3/213

Abstract: The present invention generally relates to lasers comprising fluidic channels, such as microfluidic channels. In some instances, the channel contains two or more fluids. The fluids may remain non-mixed within the channel, for example, due to immiscibility and/or laminar flow within the channel. The fluids may be arranged in the channel such that light propagating in a first fluid is prevented by the second fluid from exiting the first fluid, for example, due to differences in the indexes of refraction (e.g., causing internal reflection of the fluid to occur). Thus, in one embodiment, a first fluid may be at least partially surrounded by a second fluid having a second index of refraction lower than the index of refraction of the first fluid. In some embodiments, the fluidic channel is used as a laser, for instance, a dye laser, i.e., a laser created by directing light at a dye to produce coherent light. The dye may be present in one or more fluids within the fluidic channel. The incident light (for example, created by another laser) may be directed at the channel from any angle. In some cases, laser light may be produced in a direction substantially aligned with the longitudinal axis of the channel. In some embodiments, the laser is free of mirrors, prisms, or gratings, or the laser may produce coherent light using a non-resonant photonic pathway. However, in other cases, mirrors, prisms, or gratings may be used to reflect light along the channel to enhance stimulated emission of coherent light. Another aspect of the invention includes optical diffractors, such as prisms or gratings, which can contain a fluid. The optical diffractors, in certain embodiments, are positioned to diffract light, such as coherent light, emanating from the fluidic channel. Still other aspects of the invention provide devices, kits, and methods of making and using such lasers.

公开(公告)号：WO02019482A1

公开(公告)日：2002-03-07

申请号：PCT/GB2001/003748

申请日：2001-08-21

IPC: H01S3/16 ,  H01S3/0915 ,  H01S3/213

CPC classification number: H01S3/09155 ,  H01S3/168

Abstract: This invention relates to the field of lasers and in particular to the pump sources used in lasers. Many existing lasers use linear flashlamps in order to create population inversion in the gain medium of the laser. Such pump sources suffer from a number of drawbacks particularly when pumping dye lasers including explosive damage, long optical pulse length and inappropriate spectral emission. This invention provides a pump source for a laser which exploits the surface discharge phenomenon. A dielectric material (1) which is in contract with a gas (9) has electrical energy discharged across its surface in order to provide an electromagnetic emission which is then used to pump the gain medium. By varying the dielectric material or the cover gas used (amongst other variables) the surface emission can be used to pump the laser gain medium.

Abstract translation: 本发明涉及激光领域，特别涉及激光器中使用的泵浦光源。 许多现有的激光器使用线性闪光灯，以在激光器的增益介质中产生群体反转。 这种泵浦源具有许多缺点，特别是当泵送包括爆炸性损伤，长的光脉冲长度和不适当的光谱发射的染料激光器时。 本发明提供一种利用表面放电现象的激光器的泵浦源。 与气体（9）收缩的电介质材料（1）具有通过其表面排出的电能，以提供电磁发射，然后将其用于泵送增益介质。 通过改变所使用的介电材料或覆盖气体（以及其它变量），可以使用表面发射来泵浦激光增益介质。

公开(公告)号：WO2013090156A1

公开(公告)日：2013-06-20

申请号：PCT/US2012/068660

申请日：2012-12-10

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： STOLYAROV, Alexander ,  WEI, Lei ,  SHAPIRA, Ofer ,  SORIN, Fabien ,  FINK, Yoel ,  JOANNOPOULOS, John, D.

IPC: H01S3/213 ,  H01S3/067 ,  H01S3/00 ,  G02F1/13 ,  G02B6/02 ,  H01S3/094

CPC classification number: H01S3/0085 ,  G02B6/001 ,  G02B6/023 ,  G02F1/1326 ,  H01S3/0627 ,  H01S3/06704 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/094034 ,  H01S3/213

Abstract: Radial fiber laser. The laser includes an optical fiber including a cavity containing a microfluidic gain medium bounded by a composite structure of alternating layers of high and low index materials forming an axially invariant, rotationally symmetric photonic bandgap cavity. The optical fiber also includes at least one microfluidic channel containing liquid crystal modulators in the fiber cladding extending in an axial direction and further includes a pair of electrodes flanking the microfluidic channel. An electrical potential across the pair of electrodes will rotate the liquid crystal molecules to rotate the linearly polarized state of light emitted from the cavity. An external linear polarizer is disposed around the fiber to modulate azimuthal laser intensity distribution.

Abstract translation: 径向光纤激光器。 激光器包括光纤，该光纤包括包含微流体增益介质的空腔，微流体增益介质由形成轴向不变的旋转对称光子带隙腔的高折射率材料和低折射率材料的交替层的复合结构界定。 该光纤还包括至少一个微流体通道，其包含在轴向上延伸的纤维覆层中的液晶调制器，并且还包括位于微流体通道侧面的一对电极。 该对电极两端的电位将旋转液晶分子，以旋转从空腔发出的光的线偏振状态。 外部线性偏振器设置在光纤周围，以调制方位激光强度分布。

公开(公告)号：WO2011040800A3

公开(公告)日：2011-10-27

申请号：PCT/MX2010000100

申请日：2010-09-30

Applicant: UNIV GUANAJUATO ,  PENA CABRERA EDUARDO ,  ARROYO CORDOVA ISMAEL JAVIER ,  LOPEZ VALLEJO FABIOLA IRENE

Inventor： PENA CABRERA EDUARDO ,  ARROYO CORDOVA ISMAEL JAVIER ,  LOPEZ VALLEJO FABIOLA IRENE

IPC: C07D487/14 ,  H01S3/213

CPC classification number: C07F5/022 ,  C09B23/0008 ,  C09B23/0033 ,  C09B23/04 ,  C09B57/10 ,  H01S3/168 ,  H01S3/213

Abstract: A family of 3 members of 8-alkyl boron dipyrromethenes (I, II and III) has been developed, obtained by means of Liebeskind-Srogl coupling with alkenyl boronic acids, followed by catalytic hydrogenation of the alkenyl using hydrogen on palladium, and characterised by high laser efficiency with emission in the green region of the electromagnetic radiation spectrum. These novel derivatives are characterised by a laser efficiency almost double that of other commercial dyes and a much greater photostability.

Abstract translation: 已经开发了通过与链烯基硼酸的Liebeskind-Srogl偶联获得的8-烷基硼二吡咯甲酸（I，II和III）的3族的家族，然后使用氢在钯上催化氢化链烯基，其特征在于 激光效率高，在电磁辐射光谱的绿色区域发射。 这些新型衍生物的特征在于激光效率几乎是其他商业染料的两倍，并且具有更大的光稳定性。

公开(公告)号：WO2008119021A3

公开(公告)日：2008-10-02

申请号：PCT/US2008/058439

申请日：2008-03-27

Applicant: BERNSTEIN, Eric, F.

Inventor： BERNSTEIN, Eric, F.

IPC: H01S3/213

Abstract: There are disclosed compounds for assisting triplet absorption in a laser, such as a pulsed-dye laser, the compounds comprising at least one molecule chosen from nitroxides and nitrones. In one embodiment, the disclosed compounds may be mixed with the dye of a dye laser in an amount sufficient to assist in triplet absorption. In one embodiment, the nitroxide compound comprises tempol [4- hydroxy-2,2,6,6-tetramethyl-piperidinyloxy, free radical]. Also disclosed are methods of using the disclosed compounds to control the triplet absorption of a dye laser or improve the performance or life span of a gaseous or solid laser.

Abstract translation: 公开了用于辅助激光器（例如脉冲染料激光器）中的三重态吸收的化合物，所述化合物包含至少一种选自硝基氧和硝酮的分子。 在一个实施方案中，所公开的化合物可以与足够量的染料激光染料混合以有助于三重态吸收。 在一个实施方案中，氮氧化合物包含tempol [4-羟基-2,2,6,6-四甲基 - 哌啶氧基，自由基]。 还公开了使用公开的化合物来控制染料激光器的三重态吸收或改善气态或固态激光器的性能或寿命的方法。

公开(公告)号：WO03035795A2

公开(公告)日：2003-05-01

申请号：PCT/GB0204868

申请日：2002-10-25

Applicant: UNIV MANCHESTER ,  KING TERENCE ALAN ,  RAHN MARK DIETER ,  AHMAD MOHAMMAD

Inventor： KING TERENCE ALAN ,  RAHN MARK DIETER ,  AHMAD MOHAMMAD

IPC: H01L51/50 ,  C09K11/06 ,  H01L33/00 ,  H01L51/00 ,  H01L51/30 ,  H01S3/16 ,  H01S3/213 ,  C09K11/00

CPC classification number: C09K11/06 ,  C09K2211/14 ,  C09K2211/1408 ,  C09K2211/1441 ,  H01L51/005 ,  H01L51/5012 ,  H01S3/1691 ,  H01S3/213

Abstract: The photostability of organic material is enhanced by the incorporation of a plurality of particles which may for example have a diameter of 0.03 microns to 2.5 microns. The organic material may be a light absorbing material and may be photoluminescent or electroluminescent. Compositions in accordance with the invention incorporating an electroluminescent material of enhanced photostability may be used in an Organic Light Emitting Diode (OLED).

Abstract translation: 通过引入多个例如具有0.03微米至2.5微米直径的颗粒可以增强有机材料的光稳定性。 有机材料可以是光吸收材料并且可以是光致发光的或电致发光的。 根据本发明的包含增强的光稳定性的电致发光材料的组合物可用于有机发光二极管（OLED）中。

公开(公告)号：WO00046578A1

公开(公告)日：2000-08-10

申请号：PCT/US2000/002984

申请日：2000-02-04

IPC: G02B5/30 ,  G02B6/10 ,  G02B6/122 ,  G02F1/13 ,  H01L31/0232 ,  H01S3/08 ,  H01S3/094 ,  H01S3/10 ,  H01S3/105 ,  H01S3/213 ,  H01S5/183 ,  G01J3/28 ,  G02B1/08 ,  G02B5/20 ,  G02F1/01 ,  H01S3/14

CPC classification number: B82Y20/00 ,  G02B5/3016 ,  G02B6/105 ,  G02B6/1225 ,  H01S3/08059 ,  H01S3/094034 ,  H01S3/10061 ,  H01S3/105 ,  H01S3/1686 ,  H01S3/213

Abstract: A defect causing a localized state is induced in a chiral structure (12) composed of multiple chiral elements (20, 22) by twisting one element of the chiral structure with respect to the other elements along a common longitudinal axis such that directors of the element molecular layers that are in contact with one another at contact area (26) are disposed at a particular "twist" angle therebetween, the twist angle being greater than a shift angle between directors of consecutive layers. The chiral twist structure may be utilized in a variety of applications such as filters, lasers and detectors. The defect caused by the twist may be made tunable by providing a tuning device for rotating one or more of the chiral elements with respect to one another to vary the twist angle and thus vary the position of the induced defect within a photonic stop band. Tunable defects may be advantageously utilized to construct tunable wavelength chiral filters, detectors and lasers.

Abstract translation: 在由多个手性元件（20,22）组成的手性结构（12）中，通过沿着共同的纵向轴线相对于其它元件扭转手性结构的一个元件，引起局部化状态的缺陷，使得元件的导体 在接触区域（26）处彼此接触的分子层以其间的特定“扭转”角度设置，扭转角大于连续层的导向体之间的位移角。 手性扭转结构可以用于各种应用中，例如滤光器，激光器和检测器。 可以通过提供用于相对于彼此旋转一个或多个手性元件的调谐装置来改变扭转引起的缺陷，以改变扭转角，从而改变光子阻挡带内的感应缺陷的位置。 可调谐的缺陷可以有利地用于构建可调波长手性滤波器，检测器和激光器。