HBCH-20-IR Half Mirror

[Features]
· Non-polarized type half mirror that can be used over a wide spectrum of visible light or infrared light.
· It can be used for multi-wavelength lasers and polarization experiments with visible light.
· A hybrid film that combines a dielectric multilayer with a metallic film, it is both unpolarized and has a wide band.
· Cube type, so if the beam is input vertically, the optical axis of the output light will not move in parallel.
· Also, even if a beam that is the same size as the effective diameter is incident, the transmitted light and reflected light will not be lost or reduced.
· Even if the polarization direction of linearly polarized light changes, the branching ratio of reflection and transmission (1:1) does not change.
· * Irradiate from the prism side marked with a ○.
· * If light enters from the prism of the opposite side, reflectance and reflectance wavelength characteristics will vary.
· * Hybrid film is somewhat absorbent (10% to 15%) due to the metal film.
· * Therefore, even the total of transmitted light and reflected light does not equal 100%.
· * Phase differences of incident light are not preserved in reflected light and transmitted light.
· * Use a wave plate for phase difference compensation.
· * Due to the impact of the refractive index of the material and thickness of the glass, wavelength dispersion occurs for transmitted light and reflected light.
· * Also, chromatic aberration and spherical aberration may occur when convergent beam or divergent beam is incident.
[Product Specifications]
· [ Common Specifications]
· Material: BK7
· Base Material Surface Accuracy: λ/4
· Transmitted Beam Deflection Angle: < 5'
· Coating: Inclined Surface Hybrid Film of Combined Dielectric Multilayer and Metal Film, 4 Sides Anti-Reflective Film
· Incidence Angle: 0°
· Branching Ratio (Reflection: Transparency): 1:1
· Laser Yield Strength: 0.3 J/cm2 (Pulse Width 10 ns, Repetition Frequency 20 Hz)
· Scratch-Dig: 40-20
· Effective range: Circle inscribed in the square that makes up 85% of the external diameter
· [Individual Specifications]
· Compatible Wavelength: 1,300 to 1,550 nm
· A=B=C: 20 mm
· Transmittance: 45 ±10% (1,400 nm)
· Difference in Transmittance of P and S Polarization |Tp - Ts|: < 10%