Enhanced, durable silver coating stacks for highly reflective mirrors

    公开(公告)号:US09995860B2

    公开(公告)日:2018-06-12

    申请号:US15265941

    申请日:2016-09-15

    CPC classification number: G02B5/0858 G02B1/14 G02B5/0808 G02B5/0816

    Abstract: The disclosure is directed to a highly reflective multiband mirror that is reflective in the VIS-NIR-SWIR-MWIR-LWIR bands, the mirror being a complete thin film stack that consists of a plurality of layers on a selected substrate. In order from substrate to the final layer, the mirror consists of (a) substrate, (b) barrier layer, (c) first interface layer, (d) a reflective layer, (e) a second interface layer, (f) tuning layer(s) and (g) a protective layer. In some embodiments the tuning layer and the protective layer are combined into a single layer using a single coating material. The multiband mirror is more durable than existing mirrors on light weight metal substrates, for example 6061-Al, designed for similar applications. In each of the five layer types methods and materials are used to process each layer so as to achieve the desired layer characteristics, which aid to enhancing the durability performance of the stack.

    MONOLITHIC, LINEAR GLASS POLARIZER AND ATTENUATOR

    公开(公告)号:US20170123240A1

    公开(公告)日:2017-05-04

    申请号:US15403435

    申请日:2017-01-11

    Abstract: The disclosure is directed to an element that is capable of acting as both an optical polarizer and an optical attenuator, thus integrating both functions into a single element. The element comprises a monolithic or one piece glass polarizer (herein also call the “substrate”), a multilayer “light attenuation or light attenuating” (“LA”) coating that has been optimized for use at selected wavelengths and attenuations deposited on at least one polarizer facial surface, and a multilayer anti-reflective (AR) coating on top of the LA coating. The disclosure is further directed to an integrated optical isolator/attenuator comprising a first and a second polarizing elements and a Faraday rotator for rotating light positioned after the first polarizing element and before the second polarizing element, the integrated optical isolator/attenuator both polarizing and attenuation a light beam from a light source.

    Silica-modified-fluoride broad angle anti-reflection coatings
    25.
    发明授权
    Silica-modified-fluoride broad angle anti-reflection coatings 有权
    二氧化硅改性氟化物广角防反射涂料

    公开(公告)号:US09482790B2

    公开(公告)日:2016-11-01

    申请号:US13834008

    申请日:2013-03-15

    CPC classification number: G02B1/115 G02B1/10 G02B1/105 G03F7/7015 G03F7/70958

    Abstract: The disclosure is directed to a coating consisting of a binary metal fluoride coating consisting a high refractive index metal fluoride layer on top of a substrate, a low refractive index metal fluoride layer on top of the high refractive index layer and layer of SiO2 or F—SiO2 containing 0.2 wt % to 4.5 (2000 ppm to 45,000 ppm) F on top of the low refractive index layer. In one embodiment the F content of F—SiO2 is in the range of 5000 ppm to 10,000 ppm F. The high index and low index materials are each deposited to a thickness of less than or equal to 0.9 quarter wave, and the capping material is deposited to a thickness in the range of 5 nm to 25 nm. The disclosure is also directed to optical elements having the foregoing coating and a method of making the coating.

    Abstract translation: 本发明涉及一种由二元金属氟化物涂层组成的涂层,该涂层由基底顶部的高折射率金属氟化物层,高折射率层顶部的低折射率金属氟化物层和SiO 2或F- 在低折射率层的顶部含有0.2重量%〜4.5(2000ppm〜45,000ppm)F的SiO 2。 在一个实施方案中,F-SiO 2的F含量在5000ppm至10,000ppm F的范围内。高折射率和低折射率材料各自沉积至小于或等于0.9的1/4波长,并且封盖材料为 沉积到5nm至25nm范围内的厚度。 本发明还涉及具有上述涂层的光学元件和制备该涂层的方法。

    HIGH-EFFICIENCY MULTIWAVELENGTH BEAM EXPANDER EMPLOYING DIELECTRIC-ENHANCED MIRRORS
    26.
    发明申请
    HIGH-EFFICIENCY MULTIWAVELENGTH BEAM EXPANDER EMPLOYING DIELECTRIC-ENHANCED MIRRORS 审中-公开
    高效率多波长光束扩展器采用电介质增强镜

    公开(公告)号:US20160077346A1

    公开(公告)日:2016-03-17

    申请号:US14854739

    申请日:2015-09-15

    Inventor: Jue Wang

    Abstract: A high-efficiency, multiwavelength beam-expander optical system that employs dielectric-enhanced mirrors is disclosed. Each mirror includes a reflective multilayer coating formed from alternating layers of HfO2 and SiO2 that define, in order from the substrate surface, at least first and second sections, wherein the HfO2/SiO2 layer thicknesses are generally constant within a given section and get smaller section by section moving outward from the substrate surface. The first and second sections are respectively configured to optimally reflect different operating wavelengths so that the beam-expander optical system has an optical transmission of greater than 95% at the different operating wavelengths.

    Abstract translation: 公开了一种采用电介质增强反射镜的高效率,多波长光束扩展器光学系统。 每个反射镜包括由HfO 2和SiO 2的交替层形成的反射多层涂层,其从衬底表面依次限定至少第一和第二部分,其中HfO 2 / SiO 2层厚度在给定部分内通常是恒定的并且获得较小的截面 通过从衬底表面向外移动。 第一和第二部分分别被配置为最佳地反映不同的工作波长,使得光束扩展器光学系统在不同的工作波长下具有大于95%的光传输。

    Monolithic, linear glass polarizer and attenuator

    公开(公告)号:US10678075B2

    公开(公告)日:2020-06-09

    申请号:US16182038

    申请日:2018-11-06

    Abstract: The disclosure is directed to an element that is capable of acting as both an optical polarizer and an optical attenuator, thus integrating both functions into a single element. The element comprises a monolithic or one piece glass polarizer (herein also call the “substrate”), a multilayer “light attenuation or light attenuating” (“LA”) coating that has been optimized for use at selected wavelengths and attenuations deposited on at least one polarizer facial surface, and a multilayer anti-reflective (AR) coating on top of the LA coating. The disclosure is further directed to an integrated optical isolator/attenuator comprising a first and a second polarizing elements and a Faraday rotator for rotating light positioned after the first polarizing element and before the second polarizing element, the integrated optical isolator/attenuator both polarizing and attenuation a light beam from a light source.

    BEAM-SHAPING ELEMENTS FOR OPTICAL COHERENCE TOMOGRAPHY PROBES

    公开(公告)号:US20180364024A1

    公开(公告)日:2018-12-20

    申请号:US15736937

    申请日:2016-06-17

    Abstract: A beam-shaping optical system suitable for use with optical coherence tomography having a beam-shaping insert having a polymeric material, the beam-shaping insert integrally defining a beam-shaping element. The beam-shaping element has a reflective element positioned on a curved surface. A light source generates an electromagnetic beam. An optical fiber having a core and a cladding, the optical fiber having first end optically coupled with the light source and a fiber end. The fiber end is configured to emit the electromagnetic beam toward the beam-shaping element. The reflective element has a reflectivity greater than about 98% for both a first wavelength band of the electromagnetic beam and a second wavelength band of the electromagnetic beam.

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