Dielectric Beamsplitter, 50.8 mm, Terahertz Refl., 450-800 nm Trans.

Terahertz Visible Broadband Beamsplitters

The 20TZBS02-C Terahertz Visible Beamsplitter is 2 inches in diameter with an ITO coating optimized for reflecting terahertz wavelengths with resistivity ≤10 Ohms/Square and transmitting visible wavelengths in the 450 to 800 nm range. Ideal for beam combining or separation, the substrate is made of high quality N-BK7 glass with the front surface optimized for terahertz wavelength and the back side coated with a broadband antireflection coating optimized for visible wavelengths.

Specifications

Technical Specs

Diameter
50.8 mm
Reflectance Band
1-120 Thz
Material
Grade A N-BK7
Coating Code
ITO (front side)
Antireflection Coating
R<2.5% @ 450-800 nm (back side)
Transmittance Band
450-800 nm
Angle of Incidence
45°
Wavefront Distortion
<1λ at 632.8 nm over clear aperture
Damage Threshold
700 W/cm² CW, 20 mJ/cm² @ 10 ns pulses

Surface Quality
40-20 scratch-dig
Diameter Tolerance
+0/-0.25 mm
Thickness
6.0 mm
Thickness Tolerance
±0.50 mm
Wedge
≤3 arc min
Clear Aperture
>80% of central diameter
Cleaning
See How to Clean Optics

Diameter
50.8 mm
Reflectance Band
1-120 Thz
Material
Grade A N-BK7
Coating Code
ITO (front side)
Antireflection Coating
R<2.5% @ 450-800 nm (back side)
Transmittance Band
450-800 nm
Angle of Incidence
45°
Wavefront Distortion
<1λ at 632.8 nm over clear aperture
Damage Threshold
700 W/cm² CW, 20 mJ/cm² @ 10 ns pulses

Surface Quality
40-20 scratch-dig
Diameter Tolerance
+0/-0.25 mm
Thickness
6.0 mm
Thickness Tolerance
±0.50 mm
Wedge
≤3 arc min
Clear Aperture
>80% of central diameter
Cleaning
See How to Clean Optics

Resources & Downloads

Other

20TZBS02-C RoHS Certificate(265.2 kB, PDF)
20TZBS02-C_ROHS2-2021.pdf(0, PDF)

2D Product Drawings

20TZBS02-C Drawing(373.5 kB, PDF)

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