what is optical mirror

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Choose products to compare anywhere you see 'Add to Compare' or 'Compare' options displayed. These same parameters and procedures are used to assess the quality and flatness of other optical components such as lenses or windows. These are often quantified in terms of a “scratch and dig” specification, e.g. These are utilized in the beam steering applications with Ti:Sapphire, Yb:YAG, Yb:KGW and Er:Fiber laser fundamental wavelengths as well as their harmonics. Zero degree phase retarders maintain control over the circularly polarized beam. The surface quality and flatness determine the fidelity of the mirror performance with the targeted application dictating the requirements for these parameters. DescriptionReflective laser optics mirrors must have low reflection losses, high optical quality, and good resistance against extreme optical intensity. Historically, this was tin, mercury or silver, but today aluminum is the most commonly-used reflective substance. This is due to the fact that the X mirror is used to scan the Y mirror rather than the object directly. Such a geometry enables 180 degrees reflection of the light, regardless of incidence angle, and therefore requires very little alignment compared to a single flat mirror. The mirror is designed with a high reflectivity of 99.5% or above. However, for transmissive mirrors, a substrate material with a homogenous index of refraction is important, e.g. (function($) {window.fnames = new Array(); window.ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[5]='MMERGE5';ftypes[5]='text';fnames[6]='MMERGE6';ftypes[6]='text';}(jQuery));var $mcj = jQuery.noConflict(true); © 2020 - Wavelength Opto-Electronic - An ISO 9001 Certified Company. For additional insights into photonics topics like this, download our free MKS Instruments Handbook: Principles & Applications in Photonics Technologies. SpecificationDiameter Tolerance: +0/-0.13mmThickness Tolerance: ±0.25mmParallelism: < 3 arc min.Clear Aperture: >90%Surface Flatness: λ/4 per 1″Dia@632.8nmSurface Quality: 40-20 S-D. Metal Mirror has a thin layer of a metal coating to provide an abrasion-resistant surface while maintaining performance. Output Couplers are partially reflective mirrors to extract a portion of the laser beam from the laser resonator. Wavelength Opto-Electronic offers Broadband Mirrors with a high degree of surface flatness, low scattering, and high reflectivity. The fraction of the incident light that is either reflected or transmitted at the interface is described by the Fresnel equations and depends on the angle of incidence as well as the index of refraction of the incident (n. The index of refraction is a complex value with both real (associated with refraction) and imaginary (related to the transition absorption cross-section) components. SpecificationSubstrate Material: N-BK7 & Fused SilicaDimension Tolerance: +0.0/-0.25mmThickness Tolerance: ±0.25mmSurface Quality: 10/5 S-DClear Aperture: >90%Reflectance: >99% at 45°Angle of Incidence: 0-45°Flatness: < λ/10 @ 632.8nmGroup Delay Dispersion: < 30fs² (for s & p-polarized light)Coating: HR @ 350-400nm / 510-580nm / 950-1150nmDamage Threshold @ 20ns, 20Hz: 20 J/cm2 for 1064nm / 15 J/cm2 for 532nm / 10 J/cm2 for 355nm. Optical mirrors consist of metallic or dielectric films deposited directly on a substrate such as glass, differing from common mirrors, which are coated on the back surface of the glass. Optical mirrors are polished prior to being coated with a reflective coating. A good mirror will have a noticeable thickness and no variation or ghosting. The dimensions for each mirror are calculated accordingly with the laser beam size. These are utilized in beam guiding with broadband reflection demanding applications in Visible, NIR, and IR ranges. fused silica. For high precision surfaces, such as those found within the cavity of a laser, a scratch-dig specification of 10-5 may be required since it would yield very little scattered light. SpecificationMaterial: Fused SilicaDimension Tolerance: +0.0/-0.2mmThickness Tolerance: ±0.2mmSurface Quality: 20/10 S-DClear Aperture: >80%Reflectance: >99%Angle of Incidence: 45°Flatness: < λ/10 @ 632.8nmGroup Delay Dispersion: < 30fs² (for s & p-polarized light)Coating: HRDamage Threshold: >100mJ/cm² @ 800nm, 50fs, 50Hz. SpecificationMaterial: BK7 or Fused SilicaDimension Tolerance: +0.0/-0.2mmThickness Tolerance: ±0.2mmSurface Quality: 20/10 S-DClear Aperture: >90%Reflectance: >99%Angle of Incidence: 45°Flatness: < λ/10 @ 632.8nm per 25mm rangeChamfer: Protective<0.5mmx45°Coating: Dielectric HRDamage Threshold: >5J/cm², 20ns, 20Hz, @1064nm. Mirrors with specific light-reflective properties, such as those used for scientific experimentation, are coated with any number of other chemicals, each with its own individual properties. Its primary purpose is to redirect light to make optical systems compact in size. Provide an order number and postal code to check the status of an order or download an invoice for an order that has shipped. SpecificationDiameter Tolerance: +0/-0.13mmThickness Tolerance: ±0.25mmCentration: < 3 arc minClear Aperture: >90%Surface Quality: 40-20 S-DAngle of Incidence: 0°LIDT: 5.1 MW/cm² @ 10.6µm, Description (90° Phase Retarder 90RSI/90RCU). Wavelength Opto-Electronic offers broadband, narrowband, metal, medical laser, ultrafast, scanning, phase retarder, cavity and CO₂ mirrors of flat, wedged, or curved surfaces designed for 0° or …

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