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Visible Transmission Gratings
商品货号:ECS000806
商品品牌:Thorlabs
详细介绍
  • Designed for optimum performance in the visible spectrum, offering different levels of dispersion
  • Offer a basic simplicity for optical designs that can be beneficial in fixed grating applications such as spectrographs
  • Offered in many custom sizes on request

Thorlabs visible replicated gratings are based on Schott B270 material and are designed for operation in the visible wavelength range. Transmission gratings offer a basic simplicity for optical designs that can be beneficial in fixed grating applications, such as spectrographs. The incident light is dispersed on the opposite side of the grating at a fixed angle. Transmission gratings provide low alignment sensitivity, minimizing alignment errors. These blazed transmission gratings were designed for optimum performance in the visible spectrum, offering different levels of . In most cases the efficiency is comparable to that of reflection gratings such as or typically used in the same region of the spectrum.
By necessity, transmission gratings require relatively coarse groove spacings to maintain high efficiency. As the diffraction angles increase with the finer spacings, the refractive properties of the substrate materials used limit the transmission at the higher wavelengths and performance drops off. The grating dispersion characteristics, however, lend themselves to compact systems utilizing small detector arrays. The gratings are also relatively polarization insensitive.

Optical gratings can be easily damaged by moisture, fingerprints, aerosols, or the slightest contact with any abrasive material. Optical gratings should always be handled with gloves () and great care (refer to the Handling Tab above for more information). Thorlabs uses a clean room facility for assembly of gratings into mechanical setups. If your application requires integrating the grating into a sub-assembly or a setup please contact us to learn more about our assembly capabilities.

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