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442 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-R442-t1 , optimized for reflecting laser beams up to 10 mm in diameter while minimizing RWE
λ/5 P-V RWE on 3mm Di03-R442-t3, optimized for reflecting laser beams up to 22.5 mm in diameter while minimizing RWE

Optical Specifications
Transmission Band Tavg > 93% 466.1 – 900 nm

Reflection Band Rabs > 94% 439 – 457.9 nm
Ravg > 90% 350 – 439 nm

Reflection Band, p-pol Rabs > 90% 439 – 457.9 nm

Reflection Band, s-pol Rabs > 98% 439 – 457.9 nm

Laser Wavelength 462 nm

Edge Wavelength 462 nm
General Specifications
Angle of Incidence 45 ° with a shift of 0.35%/° (40 – 50 °)

Cone Half-angle 0.5 °

Steepness Steep

Filter Effective Index 1.77 Understanding ‘Effective Index of Refraction’ neff

Optical Damage Rating 1 J/cm sq. @ 532 nm (10 ns pulse width)

Flatness / RWE Classification Laser

Reflected Wavefront Error < 6 P-V RWE @ 632.8
Physical Specifications (for standard parts – please contact us for custom sizes)
Transverse Dimensions, LxW 25.2 mm x 35.6 mm

Filter Thickness, Unmounted 1.05 mm

Filter Thickness Tolerance, Unmounted ± 0.05 mm

Clear Aperture ≥ 80% (elliptical)

Surface Quality (Scratch-Dig) 60-40

Substrate Type Fused Silica

Orientation Reflective surface marked with part–Orient in incoming light

Di02-R442-25×36

  • 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-R442_Spectrum

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