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Edgepass Filters
商品货号:ECS000779
商品品牌:Thorlabs
详细介绍

Thorlabs' Edgepass Filters include shortpass and longpass filters which are very useful for isolating regions of a spectrum. Our edgepass filters are constructed of durable dielectric coatings and will withstand the normal cleaning and handling associated with any high-quality optical component. Their film construction is essentially a modified quarter-wave stack, using interference effects, rather than absorption, to isolate their spectral bands. Transmission curves are available in the Support Documents for each filter.

Our edgepass filters are hermetically sealed for maximum humidity protection and may be combined for custom bandpass filters. These filters are also available in kits. Below are some more applications for edgepass filters.

  • Emission filters in fluorescence applications
  • Order sorting filters for photometry
  • Stray light or trim filters to eliminate any unwanted near band radiation
  • Raman Spectroscopy filters
  • Astronomy applications

Unlike colored filter glass, these filters will shift to shorter wavelengths with an increase in the angle of incidence. This feature can be useful in applications where it is desirable to fine tune the location of the cut-on, or cut-off wavelength.

To request a quote for custom edgepass filters, please e-mail Tech Support or call us at 973-579-7227.

 

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