thorlabs uv optics
Thorlabs offers a Note: We are currently gathering more information on the optical properties of the NOA series adhesives and will post it as soon as it is available. This graph was obtained from [1].The energy density of your beam should be calculated in terms of J/cmNow compare the maximum energy density to that which is specified as the LIDT for the optic. Could you confirm it compatibility or give any kind of instruction in using NOA61 with CS2010. There are currently only few vendors for a broadband deep-uv aluminum coating and mostly laser line v-coated optics. If the optic was tested at a wavelength other than your operating wavelength, the damage threshold must be scaled appropriately [3]. Could you provide us transmittance values for this region? I will contact you directly to discuss more about this.In description of NOA63, you specify "excellent transmission in the UV range".
Pulsed lasers with pulse lengths longer than 1 µs can be treated as CW lasers for LIDT discussions.When pulse lengths are between 1 ns and 1 µs, laser-induced damage can occur either because of absorption or a dielectric breakdown (therefore, a user must check both CW and pulsed LIDT). The CS2010 curing system should have come with a German power cable for you. These tweezers are made from stainless steel and have molded-carbon-fiber tips that are chemically resistant to common solvents to protect the object being handled. You can also consider NOA81 for a faster curing time with similar strength, or otherwise our general adhesives linked in our Related Items column above.Hi,
Is there a minimum thickness for NOA61? All optics in stock currently have a UV coating with a wavelength range of 245 - 400 nm. I suspect a transmittance drop near 365 nm as it is the curing wavelenght.Response from Jeremy at Thorlabs: The NOA63 transmission falls off quickly after 365nm. The highlighted columns in the table below outline the relevant pulse lengths for our specified LIDT values.When comparing an LIDT specified for a pulsed laser to your laser, it is essential to know the following:LIDT in energy density vs. pulse length and spot size. The longer the pulse duration, the more energy the optic can handle. Elliptical beam shapes can be undesirable, as the spot size of the focused beam is larger than if the beam were circular, and as larger spot sizes have lower irradiances (power per area). A typical application is to use a pair of cylindrical lenses to provide anamorphic shaping of a beam. These rings are secured in position using a compatible Extra-thick retaining rings offer several features that aid in mounting high-curvature optics such as UV Fused Silica Plano-Convex Lenses, V-Coated: 633 nm60 mm Cage System, XY Translation Mount for Ø2" Opticsf = 20 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 30 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 40 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 50 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 75 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 100 mm, Ø1/2" UVFS Plano-Convex Lens, 633 nm V-Coatf = 35 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 40 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 50 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 75 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 100 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 125 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 150 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 175 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 200 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 250 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 300 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 500 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 750 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coatf = 1000 mm, Ø1" UVFS Plano-Convex Lens, 633 nm V-Coat Substrate options include N-BK7, N-SF6, UV fused silica, calcium fluoride, magnesium fluoride, zinc selenide, germanium, and silicon. Absorption is either due to an intrinsic property of the optic or due to surface irregularities; thus LIDT values are only valid for optics meeting or exceeding the surface quality specifications given by a manufacturer. Thorlabs specializes in the building blocks for laser and fiber optic systems. NOA63 has an operating temperature range from -15 to 60° C when used to bond glass optics, after having been cured. Please click Custom Coatings are also available. (Or is there a risk of setting fire to the cured adhesive over 175°C?)
There are multiple regimes in which a pulsed laser can damage an optic and this is based on the laser's pulse length. Yes, NOA61 will have excellent bond strength between a beamsplitter cube and an aluminum holder, and between glass and metals in general. John ArkwrightA response from Adam at Thorlabs: In response to my earlier post, we have updated the website with an optical properties tab that includes the Cauchy Equation with Cauchy coefficients.A response from Adam at Thorlabs: We currently only have dispersion data for the NOA65. A good rule of thumb is that the damage threshold has an inverse square root relationship with wavelength such that as you move to shorter wavelengths, the damage threshold decreases (i.e., a LIDT of 1 J/cmYou now have a wavelength-adjusted energy density, which you will use in the following step.Beam diameter is also important to know when comparing damage thresholds. I'd like to glue a cupper or an aluminium plate onto a glass slide by NOA61. I appreciate your support and look forward to hearing from you. The longer the pulse duration, the more energy the optic can handle. You can try soaking the parts in either methylene chloride or xylene bath for as long as necessary. If so, we would like to buy a couple of NOA61 adhesives with LOT number 366. Our plano-convex lenses are fabricated from N-BK7, UV fused silica, N-SF11, vacuum-grade calcium fluoride, magnesium fluoride, silicon, barium fluoride, zinc selenide, germanium, and PTFE. Where can i get that. If your maximum energy density is less than this adjusted LIDT maximum energy density, then the optic should be suitable for your application. Thorlabs' plano-convex lenses have a positive focal length and can be used either to focus collimated light or to collimate a point source. The units for wavelength are nm. Contact As previously stated, pulsed lasers typically induce a different type of damage to the optic than CW lasers.
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