61-6871-30 Ultra Broadband Dielectric Mirror 245-400nm φ25.4mm TFMS-25.4C05-2/4
Analyzer, Testing Equipment

61-6871-30 Ultra Broadband Dielectric Mirror 245-400nm φ25.4mm TFMS-25.4C05-2/4

model: 61-6871-30
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6871-30Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6871-30
Product Brand: SIGMAKOKI CO., LTD.

Features

  • A highly reflective mirror that covers a wide range of the ultraviolet and infrared bands, not just the visible band.
  • It can be ***d for spectroscopic experiments involving invisible light and for propagating blackbody radiation spectra.
  • Even in the ultraviolet and infrared regions, the reflectivity is higher than that of a metal film mirror.
  • Since it is a mirror of dielectric multilayer film, it does not scratch the mirror surface and can be cleaned.
  • Since there is no absorption in the film, there is little change over time and it can withstand continuous laser irradiation.
  • We also have a Surface Accuracy Guarantee Mirror (HTFM) that guarantees surface accuracy after coating.
  • * Reflectance wavelength characteristics of dielectric multilayer films vary dep***ing on the polarization state of the incident beam.
  • * P-polarized light has a lower reflectivity and a narrower reflection band than S-polarized light.
  • * The reflectance of the specification is expressed as the average value of the reflectance of P-polarized light and S-polarized light.
  • * The mirror surface has a metallic luster, but no metal is ***d.
  • * Be careful not to mistake it for a metal film mirror.

Spec

  • [ common specification]
  • Material: BK7
  • Coating: Dielectric multi-layered film
  • Incident angle: 45°±3°
  • Substrate surface accuracy: λ/10
  • Parallelism: <3′
  • Scratch - dig: 40?20
  • Effective diameter: 90% of the outer diameter
  • Back: Polished surface
  • [Individual specification]
  • Adaptive wavelength: 245 - 400nm
  • Outer diameter φD: φ25.4mm
  • Thickness t: 5mm
  • Reflective ratio: > Average 97%
  • Laser durability *: 0.5J/cm2
  • *Laser pulse width 10ns, Wavelength 532nm, Repeat frequency 20Hz
  • RoHS conform product

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