PBP01-639/21-25-D

639/21 nm Semrock® Polarizing Bandpass filter

Product Code Description Lead Time Price Quantity Buy / Get Quote
PBP01-639/21-25-D 639/21 nm Semrock® Polarizing Bandpass filter 1-2 weeks £561.00
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Specifications

Angle of Incidence:

45 ± 0.5 °

Angle of Incidence, Wide:

40.5 – 51 degrees

Blocking Band:

ODavg > 2 300 – 511 nm

Blocking Band:

ODavg > 2 795 – 1100 nm

Blocking Band, p-pol:

ODavg > 6 511 – 602

Blocking Band, p-pol:

ODavg > 6 675 – 795

Blocking Band, s-pol:

ODavg > 6 488 – 840

Clear Aperture:

≥ 85%

Cone Half-angle:

Contrast:

1,000,000:1

Contrast Note:

Ratio of transmission through two identical aligned polarizers to transmission through same pair of crossed polarizers

Filter Effective Index:

1.79 Understanding 'Effective Index of Refraction' neff

Filter Thickness Tolerance, Unmounted:

± 0.1mm

Filter Thickness, Unmounted:

2.0mm

FWHM Bandwidth:

33.5nm

Guaranteed Minimum Bandwidth:

20nm

Laser Wavelength:

640nm

Mounted / Unmounted:

Unmounted

Optical Damage Rating:

1 J/cm2 at 532 nm (10 ns pulse width, p-pol), 2 J/cm2 at 1064 nm (10 ns pulse width, s-pol)

Orientation:

Coating text towards light – For use as a polarizer
Coating text away from light – For use as an analyzer

Product Type:

Semrock Polarisation Filter

Semrock Filter Family:

Semrock® Polarization Filters

Shape:

round

Size:

25.0 x 2.0 mm

Substrate Thickness:

2.0mm

Substrate Thickness Tolerance, Unmounted:

± 0.1 mm

Substrate Type:

Fused Silica

Surface Quality (Scratch-Dig):

40−20

Transmission Band, p-pol:

Tabs > 95% 628.5 – 650 nm

Transmission Wavelength:

639.5nm

Transverse Dimensions, Diameter:

25.0mm

Transverse Tolerance, Unmounted:

± 0.1 mm

Semrock Polarization filters combine a highly efficient polarizer and a bandpass filter in a single optical component. These excellent linear polarizers have a contrast ratio exceeding 1,000,000 to 1. Because of their high-performance bandpass characteristics, they make excellent laser clean-up filters as well as detection filters.