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635 nm laser BrightLine® single-edge laser dichroic beamsplitter

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The perfect dichroic beamsplitters for the most popular lasers used in fluorescence imaging, including newer all-solid-state lasers. All beamsplitters in this category have exceptional reflectance at the laser wavelengths, and anti-reflection (AR) coatings to minimize imaging artifacts resulting from the coherent laser light. This laser dichroic beamsplitter is optimized for reflecting laser beams up to 2.5 mm in diameter while minimizing RWE.

Interested in an improved Flatness / RWE version? Consider Semrock’s Super-resolution / TIRF dichroics:
1λ P-V RWE on 1mm Di03-R635-t1 , optimized for reflecting laser beams up to 10 mm in diameter while minimizing RWE
λ/5 P-V RWE on 3mm Di03-R635-t3, optimized for reflecting laser beams up to 22.5 mm in diameter while minimizing RWE

Note on spectral plots:
In the past, each shipment has included a spectral plot for every filter and every lot code in the shipment. In an effort to be more eco-friendly, we will no longer be including these plots with each shipment. If you require spectral plot data, please see here for more information.

Optical Specifications
Transmission BandTavg > 93% 658.8 – 1200 nm
Reflection BandRabs > 94% 632.8 – 647.1 nm
Reflection Band, p-polRabs > 90% 632.8 – 647.1 nm
Reflection Band, s-polRabs > 98% 632.8 – 647.1 nm
Laser Wavelength632.8 nm
635 nm +7/-3
647.1 nm


General Specifications
Angle of Incidence45 ° with a shift of 0.35%/° (40 – 50 °)
Cone Half-angle0.5 °
SteepnessSteep
Filter Effective Index1.74 Understanding 'Effective Index of Refraction' neff
Optical Damage Rating1 J/cm² @ 532 nm (10 ns pulse width)
Flatness / RWE ClassificationLaser
Reflected Wavefront Error< 6λ P-V RWE @ 632.8


Physical Specifications (for standard parts - please contact us for custom sizes)
Mounted / UnmountedUnmounted
ShapeRectangular
Size25.2 x 35.6 x 1.1 mm
22.0 x 29.0 x 1.1 mm
Transverse Dimensions, LxW25.2 mm x 35.6 mm
Transverse Tolerance, Mounted± 0.1 mm
Filter Thickness, Unmounted1.05 mm
Filter Thickness Tolerance, Unmounted± 0.05 mm
Clear Aperture≥ 80% (elliptical)
Surface Quality (Scratch-Dig)60-40
Substrate Thickness1.05 mm
Substrate TypeFused Silica
OrientationReflective surface marked with part number – Orient in direction of incoming light


Di02-R635-22x29

  • Size: 22.0 x 29.0 x 1.1 mm

Di02-R635-25x36

  • Size: 25.2 x 35.6 x 1.1 mm

Transmission

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Optical Density

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Semrock Spectral Plot Info
Di02-R635_Spectrum
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Di02-R635

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Our knowledgeable sales team will be happy to help. We can normally source exactly what you need, or work with you to come up with custom solutions.

Alternatively, just call +44 (0) 1933 461 666 and ask to speak to the Photonics team.