835 nm BrightLine® multiphoton 3P short-pass super-resolution / TIRF dichroic beamsplitter

Semrock Part Number: FF835-SDi01-t3-25x36

IDEX Part Number: FL-413703  /

Semrock
Innovative short pass dichroic beamsplitter optimized for 3-photon laser excitation in a standard epi-fluorescence microscope configuration with reflected excitation and transmitted emission.

The 2-photon (Red) and 3-photon (Green & Red) excitation regions are ideal for femtosecond pulsed lasers such as Ti:Sapphire, OPO or OPA coupled, and neodymium- and ytterbium-doped lasers, enabling deep tissue imaging with improved contrast. This multiphoton dichroic has low reflected GDD that helps minimize temporal pulse broadening of reflected 1300 nm and 1700 nm laser pulses, and very high and flat reflection and transmission bands.

Semrock's Super-resolution / TIRF dichroics are available in two thicknesses and deliver industry-leading flatness for minimal focus shift and optical wavefront aberrations of the laser beam spot to enable popular imaging and super-resolution techniques such as TIRF, PALM, STORM, structured illumination, STED, and multiphoton imaging.

2.5λ P-V RWE on 1 mm, optimized for reflecting laser beams up to 6 mm in diameter while minimizing RWE
λ/3 P-V RWE on 3 mm, optimized for reflecting laser beams up to 16.7 mm in diameter while minimizing RWE

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  • 1,292.80 USD Each
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Optical Specifications Value
Transmission Band 1 Tavg > 90% 400 – 820 nm
Transmission Band 2 Tavg > 80% 400 – 420 nm (Rolling Window: 10 nm)
Transmission Band 3 Tavg > 90% 420 – 820 nm (Rolling Window: 10 nm)
Reflection Band 1 Ravg > 94% 1200 – 1350 nm
Reflection Band 1 (p-pol) Ravg > 90% 1200 – 1350 nm
Reflection Band 1 (s-pol) Ravg > 98% 1200 – 1350 nm
Reflection Band 2 Ravg > 94% 1600 – 1870 nm
Reflection Band 2 (p-pol) Ravg > 90% 1600 – 1870 nm
Reflection Band 2 (s-pol) Ravg > 98% 1600 – 1870 nm
Edge Wavelength 1 835 nm
Laser Wavelengths 1 1200 - 1350 nm
Laser Wavelengths 2 1600 - 1870 nm
General Filter Specifications Value
Angle of Incidence 45 ± 1.5 degrees
Cone Half-angle 2 degrees
Optical Damage Rating 1 J/cm² @ 532 nm (10 ns pulse width)
Flatness / RWE Classification   Super-resolution / TIRF
Maximum Reflected Laser Beam Diameter 16.7 mm
Nominal Flatness < 0.19λ P-V per inch @ 632.8 nm
Reflected Wavefront Error < 0.33λ P-V RWE @ 632.8 nm
Steepness Standard
Group Delay Dispersion 1 ± 1500 fs² over 1200 - 1350 nm refl band for S-Pol and P-Pol
Group Delay Dispersion 2 ± 750 fs² over 1600 - 1870 nm refl band for S-Pol and P-Pol
Physical Filter Specifications   Value
Transverse Dimensions (L x W) 25.2 mm x 35.6 mm
Transverse Tolerance ± 0.1 mm
Clear Aperture ≥ 80% (elliptical)
Scratch-Dig 60-40
Substrate Type Fused Silica
Filter Thickness (unmounted) 3.0 mm
Filter Thickness Tolerance (unmounted) ± 0.1 mm
Orientation Reflective surface marked with laser dot - Orient in direction of incoming light

Specifications