EdgeBasic filters offer an ideal combination of performance and value for applications including Raman spectroscopy and fluorescence imaging and measurements. They offer exceptional laser-line blocking and high transmission for Raman applications that do not require measuring the smallest possible Raman shifts and when cost is an issue.Optical SpecificationsSpecificationValueTransmission Band 1T_avg > 93% 334.1 – 900 nmEdge Wavelength 1331 nmBlocking Band 1OD_avg > 5 200 – 300 nmBlocking Band 2OD_abs > 6 300 – 325 nmTransition Width (nm)8.1 nmTransition Width (cm-1)750.5 cm^-1General Filter SpecificationsSpecificationValueLaser Wavelength 1325 nmLaser Wavelength 1 (low)325 nmLaser Wavelength 1 (high)325 nmAngle of Incidence0 ± 2 degreesCone Half-angle5 degreesOptical Damage RatingNot testedFilter Effective Index2.12 Understanding ‘Effective Index of Refraction’ n_effPhysical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)SpecificationValueTransverse Dimensions (Diameter)25 mmTransverse Tolerance (mounted)+ 0.0 / – 0.1 mmFilter Thickness (Mounted)3.5 mmFilter Thickness Tolerance (Mounted)± 0.1 mmClear Aperture≥ 22 mmScratch-Dig60-40Substrate Thickness (unmounted)2.0 mmSubstrate Thickness Tolerance (unmounted)± 0.1 mmOrientationArrow on ring indicates preferred direction of propagation of light