DIA30.0xT8.0mm 532nm R50 T50 NPBS Plate(BK7)

P/N: NPBSP-532-50-R-03000800

A plane-parallel optical plate with a partially transmitting coating on one surface and a antireflection coating on the second surface. When the beamsplitter is mounted at 45 degrees with respect to a beam of light, it separates the beam into two orthogonal beams. The ratio of the power in the beams is determined by the coating. Typical ratios are 30:70, 50:50, and 70:30.
Plate beamsplitters can be highly sensitive to polarization, and ratios are typically stated for unpolarized or randomly polarized light. If the light is polarized, a nonpolarizing plate beamsplitter, tailored for a specific wavelength, can ensure the appropriate performance.

Substrates:	BK7 Optical Glass
Diameter:	30.0mm
Thickness:	8.0mm
Tolerance:	+/-0.10mm
Surface Quality:	20/10 S/D per MIL Standard
Flatness:	Lambda/4 at 633nm over 1-Inch Area
Coating Wavelength:	532nm, Non-Polarizing
Angle of Incedence:	45-Deg
Splitting Ratio:	R50:T50
Splitting Ratio Tolerance:	<15% over entire wavelength range  |Ts-Tp|<15% and |Rs-Rp|<15%
Front Surface  Transmission at 45-Deg AOI:	50% at 532nm (+/-5%)
Front Surface  Reflection at 45-Deg AOI:	50% at 532nm (+/-5%)
Back Surface AR Coating:	Ravg < 0.5% at 532nm
Temperature Range:	-50 to +80 Deg

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