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All Products / Optics / Beamsplitters / Plate Beamsplitters / ISP Optics Infrared (IR) Dichroic Beamsplitters
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50.8mm Dia., 3mm Thick, ISP Optics Platinum Dichroic Beamsplitter

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Clear Aperture (%):
85
Coating:
S1: Beamsplitter Coating
Ravg = 80% from 400 - 700nm
Tavg = 85% from 3000 - 12000nm
S2: Antireflection Coating
Ravg <5% from 3000 - 12000nm
Coating Specification:
Ravg >80% @ 400 - 700nm and Tavg >85% @ 3000 - 12000nm
AR Coating: Ravg >5% @ 3000 - 12000nm
Construction:
Plate
Diameter (mm):
50.80 +0.00/-0.13
Parallelism (arcmin):
<3
Reflection Wavelength (nm):
400 - 700
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Germanium (Ge)
Surface Flatness (P-V):
λ/4 @ 633nm
Surface Quality:
60-40
Thickness (mm):
3.00 ±0.13
Transmission Wavelength (nm):
3000 - 12000
Type:
Standard Beamsplitter
Model Number:
BSP-PD-50-3

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
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Reach 240:
Compliant
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Product Family Description

  • Separate Visible Light from Infrared (3-12µm) Light
  • Visible Transmitting/Infrared Reflecting and Visible Reflecting/Infrared Transmitting Designs
  • Ideal for Combining Visible Guide Lasers with MWIR Lasers

ISP Optics Infrared (IR) Dichroic Beamsplitters are used to separate visible light from infrared light, working deeper in the infrared than conventional hot and cold mirrors. The platinum dichroic beamsplitters reflect visible light while transmitting light between 3 – 12µm and have an Anti-Reflection (AR) coating on the back surface to increase throughput. The gold dichroic beamsplitters transmit visible light while reflecting infrared light between 3 – 12µm and can be used with an AOI from 0 to 45°. ISP Optics Infrared (IR) Dichroic Beamsplitters are ideal for combining guide lasers with mid-IR laser sources, such as QCL lasers, for applications including gas detection, mid-infrared photothermal microscopy, and infrared spectroscopy.